Reference
Colour Tags
Combined Overcurrent &
Earth Fault Relay
ccontents
on
onten
ontent
s
MK2200
MK1000A
Overcurrent Relay
MK233A
MK234A
MK203A
MK204A
Earth Fault Relay
MK231A
MK232A
MK201A
MK202A
Earth Leakage Relay
Volt & Amp Meter
Voltage Relay
Reverse Power Relay
Voltage & Current
Control Relay
Power Factor Regulator
Annunciator
MK300A / 300EA
MK330A
MK301A / 302A / 301E
DIN330
DIN310 / 310E
DIN300 / 300E
ZCT40S / 60S / 80S / 120S
DVM
DAM
MU2300
MU250 / 150
RPR415
MX200A / 180A / 160A
MX100 / 50
PFR140 / 120 / 80 / 60
PFR96 / PFR96P
AN112 / 120
Print Edition
April 2010
( 423468-T )
No.1 Jalan TP 7/7, Sime UEP Industrial Park,
40400 Shah Alam, Selangor, Malaysia.
Website: www.itmikro.com
Tel: +60-3-5192-7155
Fax: +60-3-5192-7166
Mikro® reserves the right to make changes without further notice
to any products herein to improve reliability, function or design. The
figures shown are without obligation.
Functions
The MK2200 combined overcurrent and
earth-fault relay is a digital microprocessor
based relay. This relay employs extensive
advance numerical techniques implemented
in real-time, for the computation of
measured input quantity. Other advance
features include programmable control
output, metering and fault data recording.
1 Phase Overcurrent Protection
Application
The MK2200 combined overcurrent and
earth-fault relay is used where time graded
overcurrent and earth fault protection is
required.
Features
• Multifunction numerical relay
• Three-phase, low-set and high-set phase
overcurrent
• Two sets of low-set and high-set setting
for phase overcurrent
• Low-set and high-set earth fault
• Two sets of low-set and high-set setting
for earth fault
• Circuit breaker failure protection
• Four selectable IDMT characteristic
curves
• Definite time for low-set and high-set
• Numeric display of phase and earth fault
currents
• Display of relay settings
• 9 non- volatile records of previous tripping currents
• Recording of relay start time
• Highly flexible programmable relay
outputs
• Multifunction external digital input
• Isolated RS485 Modbus - RTU
communication
• Selectable 50 Hz / 60 Hz
When the phase current exceeds the lowset I> setting value, the overcurrent low-set
element starts and delivers a start signal to
the display panel and a group of preassigned
relay outputs. After a delay time, determined
by the inverse time current characteristic
curve selected and the measured current or
by definite time t>, this overcurrent element
operates and delivers a trip signal to the
display panel and a group of relay outputs
that are configured to link to the low-set
phase overcurrent tripping.
When the phase current exceeds the highset I>> setting value, the overcurrent
high-set element starts and delivers a start
signal to the display panel and a group of
preassigned relay outputs. After a preset
time, determined by t>>, this overcurrent
element operates and delivers a trip signal
to the display panel and a group of relay
outputs that are configured to link to highset phase overcurrent tripping.
2 Earth-Fault Protection
When the earth-fault current exceeds the
low-set Io> setting value, the earth-fault
low-set element starts and delivers a start
signal to the display panel and a group of
preassigned relay outputs. After a delay
time, determined by the inverse time
current characteristic curve selected and
the measured current or by definite time
to>, this earth-fault element operates and
delivers a trip signal to the display panel and
a group of relay outputs that are configured
to link to the low-set earth-fault tripping.
When the earth-fault current exceeds the
high-set Io>> setting value, the earth-fault
high-set element starts and delivers a start
signal to the display panel and a group of
preassigned relay outputs. After a preset
time, determined by to>>, this earth-fault
element operates and delivers a trip signal
to the display panel and a group of relay
outputs that are configured to link to highset earth-fault tripping.
Combined Overcurrent & Earth Fault Relay
Introduction
MK2200
MK2200
MK2200
Combined Overcurrent & Earth Fault Relay
3 Low-set Characteristic Curves
The inverse definite minimum time (IDMT)
characteristic curves in MK2200 comply with
BS142-3 and IEC60255-3. The selectable
curves and characteristics are:
• Normal inverse
• Very inverse
• Extremely inverse
• Long-time inverse
• Definite time
4 High-set Characteristic
The high-set is selectable between definite time
and instantaneous tripping characteristic.
5 External Binary Input
The functions of the external binary input are:
• Blocking the operation of one or more
protection stages.
• Remote trip reset.
• Changing of protection group settings.
• Tripping the MK2200 by an
external device.
6 Relay Output
There are five relay outputs that can be
programmed to respond to the relay start
signal, the trip signal, or both the start and
trip signals. The sixth relay output functions as
internal relay failure indicator.
7 Configuration
The configuration of the relay is accomplished
by software switches settable by the user from
the front panel.
8 Metering and Fault Record
This function enables the values of the phase
current and the earth-fault current to be
viewed by the user. In addition, the user can
also views the measured values of the phase
current and earth-fault current recorded at
the moment of fault for the previous 9 fault
records stored in non-volatile memory.
Technical Data
INPUTS Measuring input:
OUTPUTS
5 programmable contacts +1 IRF contact:
Rated current In :1 A or 5 A
Rated frequency :50 or 60 Hz
Thermal withstand :4 x In continuous
25 x In for less than 10 sec
100 x In for less than 1 sec
Burden
:< 0.3VA at In
Rated voltage
Continuous carry
Make and carry for 0.2 s
Rated auxiliary voltage:
Model MK2200-150D
Model MK2200-240A
Model MK2200-240AD
: 24~150 V DC
:198~265 V AC
: 85~265 V AC 110~340 V DC
Power consumption:
AC auxiliary voltage
DC auxiliary voltage
: 6 ~ 10 VA typical
: 5 ~ 9 W typical
Binary Input:
External binary input
: 18 ~ 265 V DC
85 ~ 265 V AC
EARTH-FAULT ELEMENT
: 250 V AC/DC
:5A
: 30 A
Contact specification:
Expected electrical life
: 100,000 operations
Expected mechanical life : 5 x 106 operations
ACCURACY
Protection thresholds : ± 3%
Time delay
: ± 2% with a minimum of 30 ms
Measurements
: ± 3%
Reset ratio
: 95% typical
Overshoot time
: less than 30 ms typical
ENVIRONMENTAL CONDITIONS
Temperature : -5˚C to +55˚C
Humidity
: 56 days at 93% RH and 40˚C
non-condensing
Low-set setting I o>
: 0.05 ~ 1.0 x In , step 0.01
High-set setting I o>>
: 0.05 ~ 10.0 x In , step 0.05
Time multiplier kt o>
: 0.02 ~ 1.0 , step 0.01
Low set definite time t o> : 0 ~ 300 s 0 ~ 10.0s : step 0.01
High set definite time t o>>: 0 ~ 300 s 10.0 ~ 100s : step 0.1
100 ~ 300s : step 1
OVERCURRENT ELEMENT
Low-set setting I >
: 0.10 ~ 2.50 x In , step 0.01
High-set setting I >>
: 0.10 ~ 40 x In , step 0.05 ( 0.1 ~ 10 In ),
step 0.1 ( 10 ~ 40 In )
Time multiplier kt >
: 0.02 ~ 1.0 , step 0.01
Low set definite time t > : 0 ~ 300 s 0 ~ 10.0s : step 0.01
High set definite time t >> : 0 ~ 300 s 10.0 ~ 100s : step 0.1
100 ~ 300s : step 1
COMMUNICATION
RS485 Modbus - RTU
Tests And Standards
High voltage dielectric withstand test IEC60255-5
High voltage impulse test IEC60255-5
Electrical fast transient IEC61000-4-4, Level 4, power supply inputs
Electrical fast transient IEC61000-4-4, Level 4, other inputs
Electrostatic discharge IEC61000-4-2, Class III, air discharge
Electrostatic discharge IEC61000-4-2, Class III, contact discharge
1MHz Burst Disturbance IEC60255-22-1
Mains conducted disturbance voltage
Radiated EM Field emission
Enclosure protection when panel mounted
2.0 KV rms, 1 min
5 KV, 1.2/50ms
4 KV, 5/50ns
2 KV, 5/50ns
8 KV
6 KV
2 KV Common mode
1 KV Differential mode
EN 55011 Group 1 Class B
CISPR 11 Group 1 Class B
IP54
t/s
t/s
10
10
k
k
1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
1
1.0
0.8
0.6
0.5
0.4
0.3
0.2
0.3
0.2
0.1
0.1
0.05
0.1
0.1
0.05
1
10
20
I/I >
EXTREMELY INVERSE
0.01
1
10
20
I/I >
LONG-TIME INVERSE
t/s
t/s
100
200
100
10
10
k
1.0
0.8
0.6
0.5
0.4
0.3
1
k
1.0
0.8
0.6
0.5
0.4
0.3
0.1
0.05
0.01
1
10
0.2
1
0.1
0.2
0.1
20
I/I >
0.05
0.1
1
10
20
I/I >
Combined Overcurrent & Earth Fault Relay
VERY INVERSE
MK2200
NORMAL INVERSE
TYPICAL APPLICATION DIAGRAM 1
COM
5A
34
36
35
3
1A
Trip Contact
R1
4
5
COM
5A
38
37
R2
6
1A
7
8
COM
5A
40
39
R3
9
1A
42
41
R4
27
26
R5
10 COM
11 5 A
12 1 A
MK2200
External
Binary
Input
Auxiliary
input Uaux
13
14
28
30
29
22
165 mm
142 mm
1
2
Front
198 mm
Internal
Relay
Failure
32
33
23
Termination Resistor
RS485
N-
24
P+
31
25
Communication
Cable Shield
34 mm
136 mm
Combined Overcurrent & Earth Fault Relay
L1
L2
L3
CASE DIMENSIONS
Side
TYPICAL APPLICATION DIAGRAM 2
129 1 mm
1
2
COM
5A
3
1A
4
5
COM
5A
38
37
R2
6
1A
7
8
COM
5A
40
39
R3
9
1A
42
41
R4
27
26
R5
10 COM
11 5 A
12 1 A
External
Binary
Input
Auxiliary
input Uaux
13
14
34
36
35
28
30
29
22
Trip Contact
R1
Internal
Relay
Failure
32
33
23
Termination Resistor
RS485
N-
24
P+
31
25
Communication
Cable Shield
Ordering Information
MODEL
DESCRIPTION
MK2200 - 150D
MK2200 - 240A
MK2200 - 240AD
For 50/60 Hz system, auxiliary voltage 24 ~ 150 V DC
For 50/60 Hz system, auxiliary voltage 198 ~ 265 V AC
For 50/60 Hz system, auxiliary voltage 84 ~ 265 V AC
or 110 ~ 340 V DC
139 1 mm
L1
L2
L3
N
Panel Cutout
Features
Technical Data
• Current measurement based on
RATINGS
• Microprocessor based numerical relay
fundamental frequency
• Three-phase, low-set overcurrent
• Three-phase, high-set overcurrent
• Low-set earth-fault
• High-set earth-fault
• Definite time for low-set and high-set
• Five selectable IDMT characteristic curves
• Local display of measured and set values
• Programmable relay outputs
• Non-volatile fault values recording
• Complies with IEC 60255-26 standard
Rated current ( In )
Rated frequency
Burden
Themal withstand
AUXILIARY SUPPLY
Model MK1000A-240A(6) : 198 ~ 265 V AC
Model MK1000A-240AD(6) : 85 ~ 265 V AC
110 V DC ~ 370 V DC
Model MK1000A-150D(6) : 24 ~ 150 V DC
Supply frequency
: 50 or 60 Hz
V A rating
: 3 VA typical
ACCURACY
Protection thresholds
Time delay
SETTING RANGES
i ) Overcurrent elements
Low-set ( I > )
: 0.5 A to 10.0 A, step 0.05 A
: 10% to 200%, step 1%
Low-set time multiplier ( kt >): 0.05 to 1.0, step 0.01
Low-set definite time ( t > ) : 0.05 to 99s
High-set ( I >> )
: 0.5 A to 99.9 A,
step 0.10 A or disable
: 10% to 1998%,
step 2%
High-set delay time ( t >> ) : 0.05 sec to 2.5 sec,
step 0.01
ii ) Earth-fault element
Low-set ( I o > )
: 0.10 A to 5.0 A,
step 0.05 A
: 2% to 100%
Low-set time multiplier(kt o>): 0.05 to 1.0, step 0.01
Low-set definite time ( t o > ): 0.05 to 99s
High-set ( I o >> )
: 0.10 A to 50 A,
step 0.10 A or
disable
: 2% to 1000%,
step 2%
High-set delay time ( t o >> ) : 0.05 sec to 2.5 sec,
step 0.01
: 5A
: 50 or 60 Hz
: < 0.3 VA at In
: 4 x In continuous
: ± 5%
: ± 5% with a minimum of 50 ms
CONTACTS
Trip Contacts ( R1 & R2 )
Rated voltage
Contacts arrangement
Contact rating
Contact material
Expected electrical life
: 250V AC/DC
: Change-over
: 5A
: Silver alloy
: 100,000 operations at
rated current
Expected mechanical life : 5 x 106 operations
INDICATORS
Auxiliary supply
Pick-up
Trip
: Green indicator
: Red indicator
: 7-segment display
and red indicators
MECHANICAL
Mounting
Front panel
Approximate weight
: Panel mounting
: Standard DIN 96 mm x 96 mm
: 0.75 kg
ENVIRONMENTAL CONDITIONS
Temperature
: -5˚C to +55˚C
Humidity
: 56 days at 93% RH and 40˚C
non-condensing
MK1000A Combined Overcurrent & Earth Fault Relay
MK1000A
VERY INVERSE
MK1000A Combined Overcurrent & Earth Fault Relay
NORMAL INVERSE
LONG TIME INVERSE
TYPICAL APPLICATION DIAGRAM
Aux
L
N
NO
1
EXTREMELY INVERSE
2
3
NC COM COM NC
4
5
R1
NORMAL INVERSE 1.3/10
9
10
11
12
13
6
7
8
15
16
R2
14
L1
L2
L3
N
CASE DIMENSIONS
96 mm
96 mm
Front
110 mm
100 mm
Side
Ordering Information
DESCRIPTION
MK1000A-240A MK1000A-240AD MK1000A-150D MK1000A-240AD6 MK1000A-150D6 For 50Hz system, auxiliary voltage 198 ~ 265 V AC
For 50Hz system, auxiliary voltage 85 ~ 265 V AC or 110~370 V DC
For 50Hz system, auxiliary voltage 24 ~ 150 V DC
For 60Hz system, auxiliary voltage 85 ~ 265 V AC or 110~370 V DC
For 60Hz system, auxiliary voltage 24 ~ 150 V DC
91.0 ± 0.5 mm
Panel Cutout
91.0 ± 0.5 mm
MODEL
MK1000A
NO
MK233A
Features
• Microprocessor based numerical relay
• Definite time for low-set and high-set
• Current measurement based on
• Non-volatile fault value recording
fundamental frequency
• Three-phase, low-set overcurrent
• Five selectable IDMT characteristic curves
• Three-phase, high-set overcurrent
• Complies with IEC 60255-26 standard
• Local display of measured and set values
Technical Data
RATINGS
Rated current ( In )
Rated frequency
Burden
Thermal withstand
: 5A
: 50 or 60 Hz
: < 0.3 VA at In
: 4 x In continuous
AUXILIARY SUPPLY
Model MK233A-240A (6) Model MK233A-110A (6)
Supply frequency
VA rating
: 198 ~ 265 V AC
: 94 ~ 127 V AC
: 50 or 60 Hz
: 3 VA typical
SETTING RANGES
Low-set ( I > )
Low-set time multiplier ( kt > )
Low-set definite time (t >)
High-set ( I >> )
High-set delay time ( t >> )
:
:
:
:
:
0.5 A to 6.0 A, step 0.05 A / 10% to 120%, step 1%
0.05 to 1.0, step 0.01
0.05 to 99 sec, step 0.01 (0.05 to 1.0) / 0.1 (1.1 to 99)
0.5 A to 99.9 A or disable, step 0.10 A / 10% to 1998%, step 2%
0.05 sec to 2.5 sec, step 0.01
ACCURACY
Protection thresholds
Time delay
: ± 5%
: ± 5% with a minimum of 50 ms
CONTACTS ( R1 & R2 )
Contact arrangement
Contact rating
Contact material
Expected electrical life
Expected mechanical life
:
:
:
:
:
Change-over
5 A, 250 V AC ( cosϕ = 1 )
Silver alloy
100,000 operations at rated current
5 x 106 operations
INDICATORS
Auxiliary supply
Pick-up
Trip
: Green indicator
: Red indicator
: 7-segment display and red indicators
MECHANICAL
Mounting
Front panel
Approximate weight
: Panel mounting
: Standard DIN 96 mm x 96 mm
: 0.7 kg
ENVIRONMENTAL CONDITIONS
Temperature
Humidity
: -5˚C to +55˚C
: 56 days at 93% RH and 40˚C non-condensing
MK233A Overcurrent Relay
• Programmable relay outputs
VERY INVERSE
MK233A Overcurrent Relay
NORMAL INVERSE
LONG TIME INVERSE
TYPICAL APPLICATION DIAGRAM
Aux
L
N
NO
1
EXTREMELY INVERSE
2
3
NC COM COM NC
4
NORMAL INVERSE 1.3/10
5
6
R1
9
10
11
12
13
MK 233A
NO
7
8
15
16
R2
14
L1
L2
L3
N
CASE DIMENSIONS
96 mm
96 mm
Front
110 mm
100 mm
Side
Ordering Information
DESCRIPTION
MK233A - 240A
MK233A - 110A
MK233A - 240A6
MK233A -110A6
For 50 Hz system, auxiliary voltage198 ~ 265 V AC
For 50 Hz system, auxiliary voltage 94 ~ 127 V AC
For 60 Hz system, auxiliary voltage198 ~ 265 V AC
For 60 Hz system, auxiliary voltage 94 ~ 127 V AC
91.0 ± 0.5 mm
Panel Cutout
91.0 ± 0.5 mm
MODEL
MK234A
• Definite time for low-set and high-set
• Current measurement based on
• Non-volatile fault value recording
fundamental frequency
• Three-phase, low-set overcurrent
• Three-phase, high-set overcurrent
• Programmable relay outputs
• Complies with IEC 60255-26 standard
• Local display of measured and set values
Technical Data
RATINGS
Rated current ( In )
Rated frequency
Burden
Thermal withstand
: 5A
: 50 or 60 Hz
: < 0.3 VA at In
: 4 x In continuous
AUXILIARY SUPPLY
Model MK234A-240A(6) Model MK234A-110A(6)
Supply frequency
VA rating
: 198 ~ 265 V AC
: 94 ~ 127 V AC
: 50 or 60 Hz
: 3 VA typical
SETTING RANGES
Low-set ( I > )
Low-set definite time ( t > )
High-set ( I >> )
High-set delay time ( t >> )
:
:
:
:
0.5 A to 6.0 A, step 0.05 A / 10% to 120%, step 1%
0.05 to 99 sec, step 0.01 (0.05 to 1.0) / 0.1 (1.1 to 99)
0.5 A to 99.9 A or disable, step 0.10 A / 10% to 1998%, step 2%
0.05 sec to 2.5 sec, step 0.01
ACCURACY
Protection thresholds
Time delay
: ± 5%
: ± 5% with a minimum of 50 ms
CONTACTS ( R1 & R2 )
Contact arrangement
Contact rating
Contact material
Expected electrical life
Expected mechanical life
:
:
:
:
:
Change-over
5 A, 250 V AC ( cosϕ = 1 )
Silver alloy
100,000 operations at rated current
5 x 106 operations
INDICATORS
Auxiliary supply
Pick-up
Trip
: Green indicator
: Red indicator
: 7-segment display and red indicators
MECHANICAL
Mounting
Front panel
Approximate weight
: Panel mounting
: Standard DIN 96 mm x 96 mm
: 0.7 kg
ENVIRONMENTAL CONDITIONS
Temperature
Humidity
: -5˚C to +55˚C
: 56 days at 93% RH and 40˚C non-condensing
MK234A Overcurrent Relay
Features
• Microprocessor based numerical relay
TYPICAL APPLICATION DIAGRAM
Aux
L
N
NO
1
2
3
NC COM COM NC
4
5
R1
10
11
12
13
7
8
15
16
R2
14
L1
L2
L3
N
CASE DIMENSIONS
96 mm
96 mm
Front
110 mm
100 mm
Side
91.0 ± 0.5 mm
Panel Cutout
Ordering Information
MODEL
DESCRIPTION
MK234A - 240A
MK234A - 110A
MK234A - 240A6
MK234A -110A6
For 50 Hz system, auxiliary supply 198 ~ 265 V AC
For 50 Hz system, auxiliary supply 94 ~ 127 V AC
For 60 Hz system, auxiliary supply 198 ~ 265 V AC
For 60 Hz system, auxiliary supply 94 ~ 127 V AC
91.0 ± 0.5 mm
MK234A Overcurrent Relay
9
6
MK 234A
NO
MK203A
• Microprocessor based numerical relay
• Current measurement based on
fundamental frequency
• Low-set inverse definite minimum time ( IDMT ) relay
• High-set instantaneous relay
• Separate low-set and high-set trip indicators
Technical Data
RATINGS
Rated current ( In )
Rated frequency
Burden
Thermal withstand
:5 A
:50 Hz
:< 0.3 VA at In
:4 x In continuous
AUXILIARY SUPPLY
Model MK203A-240A : 198 ~ 265 V AC
Model MK203A-110A :94 ~ 127V AC
Supply frequency :50 Hz
VA rating
: 3 VA typical
• Option to disable high-set relay
SETTING RANGES
• Front panel access to test function
Low-set ( I > ) :2.0 A to 6.0 A
:40% to 120%
Time multiplier ( TM ) :0.05 to 1.0
High-set ( I >> ) :I > to 10 x I > or disable
High-set delay time (t >>) : Instantaneous
• Complies with IEC 60255-26 standard
TIME CURRENT CHARACTERISTIC CURVE
- Normal Inverse
CONTACTS
Trip contact (R1) :Manual reset type
Contact Arrangement:Change-over
Contact rating
:5 A, 250 V AC ( cosϕ = 1 )
Contact material
:Silver alloy
Expected electrical life:100,000 operations at
rated current
Expected mechanical life:5 x 106 operations
INDICATORS
Auxiliary supply Pick-up Trip :Green indicator
:Red indicator
:Red indicator
PERFORMANCE
Adjustable accuracy : Less than ±5%.
Repeatability : Less than 0.5% of full scale.
MECHANICAL
Mounting Front panel : Panel mounting
: Standard DIN 96 mm x 96 mm
Approximate weight : 0.7 kg
ENVIRONMENTAL CONDITIONS
Temperature
Humidity
:-5˚C to +55˚C
:56 days at 93% RH and
40˚C non-condensing
MK203A Overcurrent Relay
Features
TYPICAL APPLICATION DIAGRAM
Aux
L
N
MK 203A
NO
1
2
NORMAL INVERSE
3
NC COM
4
5
6
7
8
14
15
16
R1
10
11
12
13
L1
L2
L3
N
COMBINED IDMT OVERCURRENT & EARTH FAULT RELAYS
AUX
L
N
1
2
L
MK 203A
NO
3
AUX
N
NC COM
4
5
MK 202A
NO
6
7
8
1
2
3
NC COM
4
9
10
11
12
13
5
6
7
8
14
15
16
R1
R1
14
15
16
9
10
11
12
13
L1
L2
L3
CASE DIMENSIONS
96 mm
110 mm
100 mm
91.0 ± 0.5 mm
Front
Side
Panel Cutout
Ordering Information
MODEL
DESCRIPTION
MK203A - 240A
MK203A - 110A
For 50 Hz system, auxiliary voltage 198 ~ 265 V AC
For 50 Hz system, auxiliary voltage 94 ~ 127 V AC
91.0 ± 0.5 mm
N
96 mm
MK203A Overcurrent Relay
9
Features
Technical Data
• Microprocessor based numerical relay
RATINGS
• Current measurement based on
fundamental frequency
• Low-set inverse definite time relay (IDT)
• High-set instantaneous relay
• Separate low-set and high-set trip indicators
• Option to disable high-set relay
• Front panel access to test function
• Complies with IEC 60255-26 standard
Rated current ( In )
Rated frequency
Burden
Thermal withstand
:5 A
:50 Hz
:< 0.3 VA at In
:4 x In continuous
AUXILIARY SUPPLY
Model MK204A-240A : 198 ~ 265 V AC
Model MK204A-110A :94 ~ 127V AC
Supply frequency :50 Hz
VA rating
: 3 VA typical
SETTING RANGES
Low-set ( I > ) :2.0 A to 6.0 A
:40% to 120%
Time multiplier ( TM ) :0.05 to 1.0
High-set ( I >> ) :I > to 10 x I > or disable
High-set delay time (t >>) : Instantaneous
CONTACTS
Trip contact (R1) :Manual reset type
Contact Arrangement:Change-over
Contact rating
:5 A, 250 V AC ( cosϕ = 1 )
Contact material
:Silver alloy
Expected electrical life:100,000 operations at
rated current
Expected mechanical life:5 x 106 operations
INDICATORS
Auxiliary supply Pick-up Trip :Green indicator
:Red indicator
:Red indicator
PERFORMANCE
Adjustable accuracy : Less than ±5%.
Repeatability : Less than 0.5% of full scale.
MECHANICAL
Mounting Front panel : Panel mounting
: Standard DIN 96 mm x 96 mm
Approximate weight : 0.7 kg
ENVIRONMENTAL CONDITIONS
Temperature
Humidity
:-5˚C to +55˚C
:56 days at 93% RH and
40˚C non-condensing
MK204A Overcurrent Relay
MK204A
TYPICAL APPLICATION DIAGRAM
Aux
L
N
2
t/s
MK 204A
NO
1
IDT INVERSE
3
NC COM
4
5
6
7
8
14
15
16
R1
10
11
12
13
10
L1
L2
k
L3
1.0
0.9
0.8
0.7
0.6
0.5
0.4
N
1
0.3
0.2
0.1
0.1
1
10
20
I/I>
COMBINED OVERCURRENT & EARTH FAULT RELAYS
AUX
L
N
1
2
L
MK 204A
NO
3
AUX
N
NC COM
4
5
MK 201A
NO
6
7
8
1
2
3
NC COM
4
9
10
11
12
13
5
6
7
8
14
15
16
R1
R1
14
15
16
9
10
11
12
13
L1
L2
L3
CASE DIMENSIONS
96 mm
110 mm
100 mm
91.0 ± 0.5 mm
Front
Side
Panel Cutout
Ordering Information
MODEL
DESCRIPTION
MK204A - 240A
MK204A - 110A
For 50 Hz system, auxiliary voltage 198 ~ 265 V AC
For 50 Hz system, auxiliary voltage 94 ~ 127 V AC
91.0 ± 0.5 mm
N
96 mm
MK204A Overcurrent Relay
9
MK231A
Features
• Microprocessor based numerical relay
• Definite time for low-set and high-set
• Current measurement based on
• Non-volatile fault value recording
fundamental frequency
• Programmable relay outputs
• Low-set earth-fault
• Complies with IEC 60255-26 standard
• High-set earth-fault
• Local display of measured and set values
RATINGS
Rated current ( In )
Rated frequency
Burden
Thermal withstand
: 5A
: 50 or 60 Hz
: < 0.3 VA at In
: 4 x In continuous
AUXILIARY SUPPLY
Model MK231A-240A (6) Model MK231A-110A (6)
Supply frequency
VA rating
: 198 ~ 265 V AC
: 94 ~ 127 V AC
: 50 or 60 Hz
: 3 VA typical
SETTING RANGES
Low-set ( I > )
Low-set definite time ( t > )
High-set ( I >> )
High-set delay time ( t >> )
:
:
:
:
0.1 A to 5.0 A, step 0.05 A / 2% to 100%, step 1%
0.05 to 99 sec, step 0.01 (0.05 to 1.0) / 0.1 (1.1 to 99)
0.1 A to 50 A or disable, step 0.1 A / 2% to 1000%, step 2%
0.05 sec to 2.5 sec, step 0.01
ACCURACY
Protection thresholds
Time delay
: ± 5%
: ± 5% with a minimum of 50 ms
CONTACTS ( R1 & R2 )
Contact arrangement
Contact rating
Contact material
Expected electrical life
Expected mechanical life
:
:
:
:
:
Change-over
5 A, 250 V AC ( cosϕ = 1 )
Silver alloy
100,000 operations at rated current
5 x 106 operations
INDICATORS
Auxiliary supply
Pick-up
Trip
: Green indicator
: Red indicator
: 7-segment display and red indicators
MECHANICAL
Mounting
Front panel
Approximate weight
: Panel mounting
: Standard DIN 96 mm x 96 mm
: 0.6 kg
ENVIRONMENTAL CONDITIONS
Temperature
Humidity
: -5˚C to +55˚C
: 56 days at 93% RH and 40˚C non-condensing
MK231A Earth Fault Relay
Technical Data
TYPICAL APPLICATION DIAGRAM
Aux
L
N
NO
1
2
3
NC COM COM NC
4
5
R1
9
10
11
12
13
6
MK 231A
NO
7
8
15
16
R2
14
L1
L2
L3
N
MK231A Earth Fault Relay
CASE DIMENSIONS
96 mm
96 mm
Front
110 mm
100 mm
Side
Panel Cutout
Ordering Information
MODEL
DESCRIPTION
MK231A - 240A
MK231A - 110A
MK231A - 240A6
MK231A -110A6
For 50 Hz system, auxiliary voltage 198 ~ 265 V AC
For 50 Hz system, auxiliary voltage 94 ~ 127 V AC
For 60 Hz system, auxiliary voltage 198 ~ 265 V AC
For 60 Hz system, auxiliary voltage 94 ~ 127 V AC
91.0 ± 0.5 mm
91.0 ± 0.5 mm
MK232A
Features
• Microprocessor based numerical relay
• Definite time for low-set and high-set
• Current measurement based on
• Non-volatile fault value recording
fundamental frequency
• Programmable relay outputs
• Low-set earth-fault
• Five selectable IDMT characteristic curves
• High-set earth-fault
• Complies with IEC 60255-26 standard
• Local display of measured and set values
RATINGS
Rated current ( In )
Rated frequency
Burden
Thermal withstand
: 5A
: 50 or 60 Hz
: < 0.3 VA at In
: 4 x In continuous
AUXILIARY SUPPLY
Model MK232A-240A (6) Model MK232A-110A (6)
Supply frequency
VA rating
: 198 ~ 265 V AC
: 94 ~ 127 V AC
: 50 or 60 Hz
: 3 VA typical
SETTING RANGES
Low-set ( I > )
Low-set time multiplier ( kt > )
Low-set definite time (t >)
High-set ( I >> )
High-set delay time ( t >> )
:
:
:
:
:
0.1 A to 5.0 A, step 0.05 A / 2% to 100%, step 1%
0.05 to 1.0, step 0.01
0.05 to 99 sec, step 0.01 (0.05 to 1.0) / 0.1 (1.1 to 99)
0.1 A to 50 A or disable, step 0.1 A / 2% to 1000%, step 2%
0.05 sec to 2.5 sec, step 0.01
ACCURACY
Protection thresholds
Time delay
: ± 5%
: ± 5% with a minimum of 50 ms
CONTACTS ( R1 & R2 )
Contact arrangement
Contact rating
Contact material
Expected electrical life
Expected mechanical life
:
:
:
:
:
Change-over
5 A, 250 V AC ( cosϕ = 1 )
Silver alloy
100,000 operations at rated current
5 x 106 operations
INDICATORS
Auxiliary supply
Pick-up
Trip
: Green indicator
: Red indicator
: 7-segment display and red indicators
MECHANICAL
Mounting
Front panel
Approximate weight
: Panel mounting
: Standard DIN 96 mm x 96 mm
: 0.6 kg
ENVIRONMENTAL CONDITIONS
Temperature
Humidity
: -5˚C to +55˚C
: 56 days at 93% RH and 40˚C non-condensing
MK232A Earth Fault Relay
Technical Data
VERY INVERSE
LONG TIME INVERSE
TYPICAL APPLICATION DIAGRAM
Aux
L
N
NO
1
EXTREMELY INVERSE
2
3
NC COM COM NC
4
NORMAL INVERSE 1.3/10
5
6
R1
9
10
11
12
13
MK 232A
NO
7
8
15
16
R2
14
L1
L2
L3
N
CASE DIMENSIONS
96 mm
96 mm
Front
110 mm
100 mm
Side
Ordering Information
MODEL
DESCRIPTION
MK232A - 240A
MK232A - 110A
MK232A - 240A6
MK232A -110A6
For 50 Hz system, auxiliary voltage 198 ~ 265 V AC
For 50 Hz system, auxiliary voltage 94 ~ 127 V AC
For 60 Hz system, auxiliary voltage 198 ~ 265 V AC
For 60 Hz system, auxiliary voltage 94 ~ 127 V AC
91.0 ± 0.5 mm
Panel Cutout
91.0 ± 0.5 mm
MK232A Earth Fault Relay
NORMAL INVERSE 3/10
MK201A
Features
Technical Data
• Microprocessor based numerical relay
RATINGS
• Current measurement based on
• Low-set definite time relay
Rated current ( In )
Rated frequency
Burden
Thermal withstand
• High-set instantaneous relay
AUXILIARY SUPPLY
• Option to disable the high-set relay
Model MK201A-240A : 198 ~ 265 V AC
Model MK201A-110A : 94 ~ 127 V AC
Supply frequency
: 50 Hz
VA rating
: 3 VA typical
• Front panel access to the test function
SETTING RANGES
• Separate low-set and high-set indicators
• Complies with IEC 60255-26 standard
PERFORMANCE
Adjustable accuracy : Less than ±5%
Repeatability
: Less than 0.5% of
full scale
Low-set ( I > )
:0.1 A to 2.0 A
:2% to 40%
Low-set delay time(DELAY):0.05 sec to 1.0 sec
High-set ( I >> )
:I > to 10 x I > or
disable
High-set delay time ( t >> ):Instantaneous
CONTACTS
: Panel mounting
: Standard DIN 96 mm x 96 mm
Approximate weight : 0.6 kg
Trip contact (R1) :Manual reset type
Contact Arrangement:Change-over
Contact rating
:5 A, 250 V AC ( cosϕ = 1 )
Contact material
:Silver alloy
Expected electrical life:100,000 operations at
rated current
Expected mechanical life: 5 x 106 operations
ENVIRONMENTAL CONDITIONS
INDICATORS
Temperature
Humidity
Auxiliary supply
Pick-up
Trip
MECHANICAL
Mounting
Front panel
:-5˚C to +55˚C
:56 days at 93% RH and
40˚C non-condensing
: Green indicator
: Red indicator
: Red indicator
MK201A Earth Fault Relay
fundamental frequency
:5 A
:50 Hz
:< 0.3 VA at In
:4 x In continuous
Aux
L
N
1
2
COMBINED OVERCURRENT & EARTH FAULT RELAYS
3
AUX
L
MK 201A
NO
NC COM
4
5
N
MK 204A
NO
9
10
11
12
13
L
AUX
N
NC COM
6
7
8
1
2
3
4
14
15
16
9
10
11
12
R1
5
MK 201A
NO
NC COM
6
7
8
1
2
3
4
14
15
16
9
10
11
12
13
L2
L1
L3
L2
N
L3
N
96 mm
90 mm
70 mm
Front
Side
91.0 ± 0.5 mm
Panel Cutout
Ordering Information
MODEL
DESCRIPTION
MK201A - 240A
MK201A - 110A
For 50 Hz system, auxiliary voltage 198 ~ 265 V AC
For 50 Hz system, auxiliary voltage 94 ~ 127 V AC
91.0 ± 0.5 mm
CASE DIMENSIONS
5
6
7
8
14
15
16
R1
R1
L1
96 mm
MK201A Earth Fault Relay
TYPICAL APPLICATION DIAGRAM
13
MK202A
Features
Technical Data
• Microprocessor based numerical relay
RATINGS
fundamental frequency
• Low-set inverse definite minimum time ( IDMT ) relay
• High-set instantaneous relay
• Separate low-set and high-set trip indicators
• Option to disable high-set element
• Front panel access to test function
• Complies with IEC 60255-26 standard
Rated current ( In )
Rated frequency
Burden
Thermal withstand
:5 A
:50 Hz
:< 0.3 VA at In
:4 x In continuous
AUXILIARY SUPPLY
Model MK202A-240A : 198 ~ 265 V AC
Model MK202A-110A :94 ~ 127V AC
Supply frequency :50 Hz
VA rating
: 3 VA typical
SETTING RANGES
Low-set ( I > ) :0.1A to 2.0 A
:2% to 40%
Time multiplier ( TM ) :0.05 to 1.0
High-set ( I >> ) :I > to 10 x I > or disable
High-set delay time (t >>) : Instantaneous
TIME CURRENT CHARACTERISTIC CURVE
- Normal Inverse
CONTACTS
Trip contact (R1) :Manual reset type
Contact Arrangement:Change-over
Contact rating
:5 A, 250 V AC ( cosϕ = 1 )
Contact material
:Silver alloy
Expected electrical life: 100,000 operations at
rated current
Expected mechanical life: 5 x 106 operations
INDICATOR
Auxiliary indicator Pick-up Trip :Green indicator
:Red indicator
:Red indicator
PERFORMANCE
Adjustable accuracy : Less than ±5%.
Repeatability : Less than 0.5% of full scale.
MECHANICAL
Mounting Front panel : Panel mounting
: Standard DIN 96 mm x 96 mm
Approximate weight : 0.6 kg
ENVIRONMENTAL CONDITIONS
Temperature
Humidity
:-5˚C to +55˚C
:56 days at 93% RH and
40˚C non-condensing
MK202A Earth Fault Relay
• Current measurement based on
TYPICAL APPLICATION DIAGRAM
Aux
L
N
MK 202A
NO
1
IDMT NORMAL INVERSE
2
3
NC COM
4
5
6
7
8
14
15
16
R1
9
10
11
12
13
L1
L2
L3
COMBINED IDMT OVERCURRENT & EARTH FAULT RELAYS
AUX
L
N
1
2
L
MK 203A
NO
3
AUX
N
NC COM
4
5
MK 202A
NO
6
7
8
1
2
3
NC COM
4
9
10
11
12
13
5
6
7
8
14
15
16
R1
R1
14
15
16
9
10
11
12
13
L1
L2
L3
N
96 mm
90 mm
70 mm
Front
Side
91.0 ± 0.5 mm
Panel Cutout
Ordering Information
MODEL
DESCRIPTION
MK202A - 240A
MK202A - 110A
For 50 Hz system, auxiliary voltage 198 ~ 265 V AC
For 50 Hz system, auxiliary voltage 94 ~ 127 V AC
91.0 ± 0.5 mm
CASE DIMENSIONS
96 mm
MK202A Earth Fault Relay
N
MK300A/300EA
MK300A
Features for MK300A / 300EA
Features for MK300EA only
• Numerical earth leakage relay
• Positive safety output contact
• Programmable current sensitivity and
time delay
• Pre-fault alarm contact
• Detection of no connection to ZCT
• Remote reset function
• Relay trip indicator
• Relay alarm indicator
• Real-time leakage current display
• 50% pre-fault indicator
• Leakage fault current recording
MK300EA
• Protected against nuisance tripping
TYPICAL APPLICATION DIAGRAM For MK300A
N
AUX
L1 L2 L3 N
L
PE
MIKRO
ZCT
MK300A
1
2
4
5
6
7
8
12
13
14
15
16
3
The EARTH wire
must not pass
through the ZCT
SHUNT
TRIP
TRIP
CONTACT
NC
9
NO
COM
11
10
LOAD
TYPICAL APPLICATION DIAGRAM For MK300EA
N
AUX
L1 L2 L3 N
REMOTE
RESET
L
PE
MIKRO
ZCT
MK300EA
1
2
3
TRIP
CONTACT
NC
9
NO
10
4
5
6
ALARM
CONTACT
COM NO
11
12
COM NC
13
8
7
CONTACTOR
POSITIVE SAFETY
CONTACT
14
NO
15
COM
16
LOAD
The EARTH wire
must not pass
through the ZCT
MK300A & MK300EA Earth Leakage Relay
• Standard DIN 96x96mm panel mounting
E
Technical Data
CASE DIMENSIONS
AUXILIARY SUPPLY
: 184 ~ 276 V AC
: 94 ~ 127 V AC
: 50 Hz
: 3 VA typical
SETTING
Sensitivity adjustment :
Time delay adjustment :
30mA, 50mA,
0.10~1.00A (Step=50mA)
1.00~10.0A (Step=1.00A)
Instantaneous, 0.1~3.0sec (Step=0.1s)
96 mm
96 mm
Model MK300A / 300EA -230A
Model MK300A / 300EA -110A
Rated frequency VA rating
Front
90 mm
70 mm
PERFORMANCE
Setting accuracy Timing accuracy
:-15% to +0%
:±5%
Side
RECORD
Fault record Storage : 3 latest tripped fault currents or “tSt” for manual test trip
: Non-volatile memory
91.0 ± 0.5 mm
MK300A & MK300EA Earth Leakage Relay
Remote Test / Reset Inputs : N.O. dry contact *
Panel Cutout
OUTPUTS
Trip contact Positive safety contact* Alarm contact* : Activated during leakage trip, manual test trip or ZCT connection error
: Activated when power-up and relay function correctly
: Activated when measured leakage current exceeded 50% of IΔn.
CONTACTS
Contact arrangement Contact rating
Expected electrical life
Expected mechanical life
:
:
:
:
Change-over
5A(NO) / 3A(NC) / 250V AC1
10,000 operations at rated current
5 x 106 operations
:
:
:
:
:
Red indicator (Normal blink)
Red indicator (Fast blink)
7-segment display and red indicator
7-segment display and red indicator
7-segment display
INDICATORS
Pre-fault alarm
Time delay Leakage trip ZCT connection error Real-time leakage current ZERO - PHASE CURRENT TRANSFORMER
To operate with Mikro’s ZCT series of current transformer
MECHANICAL
Mounting method Front panel Approximate weight : Panel mounting
: Standard DIN 96mm x 96mm
: 0.58kg (excluding ZCT)
* Applicable to MK 300EA series only
Ordering Information
MODEL
DESCRIPTION
MK300A - 230A MK300EA - 230A MK300A - 110A MK300EA - 110A For 50Hz system, auxiliary voltage 184~276VAC
For 50Hz system, auxiliary voltage 184~276VAC
For 50Hz system, auxiliary voltage 94~127VAC
For 50Hz system, auxiliary voltage 94~127VAC
91.0 ± 0.5 mm
INPUT
MK330A
Features
• Numerical auto-reclosing earth leakage
relay
• One programmable contact for flexibility
• Detection of no connection to ZCT
• Programmable current sensitivity and
time delay
• Relay trip indicator
• Relay alarm indicator
• Programmable dead time and number of
shots
• Real-time leakage current display
• Programmable persistent fault time and
reclaim time
• Leakage fault current recording
• Remote reset function
• Programmable lockout auto reset time
• Standard DIN 96x96mm panel mounting
• Incorporated positive safety feature into
trip contact
TYPICAL APPLICATION DIAGRAM
N
AUX
L1 L2 L3 N
REMOTE
RESET
L
PE
MIKRO
ZCT
MK330A
1
2
3
4
5
TRIP SAFE
CONTACT*
NC
9
NO
10
6
8
7
CONTACTOR
The EARTH wire
must not pass
through the ZCT
PROGRAMMABLE
CONTACT
NC
COM
11
12
13
14
NO
15
COM
16
LOAD
* The trip safe contact is activated (terminal 10-11 closed) when
the relay is in normal power-up condition with the measured
leakage current less than 0.85 IΔn.
MK330A Self-Reclosing Earth Leakage Relay
• Protected against nuisance tripping
Technical Data
CASE DIMENSIONS
AUXILIARY SUPPLY
PERFORMANCE
:184~276VAC
:94~127VAC
:50Hz
:3VA typical
Setting accuracy Timing accuracy
96 mm
: -15% to +0%
: ±5%
96 mm
Model MK330A-230A Model MK330A-110A
Rated frequency VA rating Front
Sensitivity adjustment :30mA, 50mA,
0.10~1.00A (Step=50mA)
1.00~10.0A (Step=1.00A)
Time delay adjustment :Instantaneous, 0.1~3.0sec (Step=0.1s)
Number of shots :0~30 (Step=1, 0=Disable auto re-close function)
Dead time :1~500sec (Step=1sec)
Persistent fault time :0~500sec (Step=1sec, 0=Disable function)
Reclaim time :0~500min (Step=1min, 0=Disable function)
Lockout auto reset time :0~200hour (Step=1Hr, 0=Disable function)
Programmable contact :Option 0 = Disable
Option 1 = All (Option 2 to 6)
Option 2 = ZCT error
Option 3 = Leakage trip, test trip, re-close lockout
Option 4 = Re-close lockout
Option 5 = Pre-fault alarm, leakage trip, test trip, re-close lockout
Option 6 = Re-close lockout, ZCT error
90 mm
70 mm
Side
91.0 ± 0.5 mm
Panel Cutout
RECORD
Fault record Storage :3 latest tripped fault currents or “tSt” for manual test trip
:Non-volatile memory
INPUT
Remote reset :N.O. dry contact
OUTPUTS
Trip safe contact :Activated when the relay is in normal power-up condition with the measured leakage current less than 0.85 IΔn.
Programmable contact :Activated according to user setting
CONTACTS
Contact arrangement Contact rating Expected electrical life Expected mechanical life :Change-over
:5A (NO) / 3A (NC) / 250V AC1
:10,000 at rated current
:5 x 106 operations
INDICATORS
Pre-fault alarm Time delay Leakage trip Re-close lockout ZCT connection error Real-time leakage current :Red indicator (Normal blink)
:Red indicator (Fast blink)
:7-segment display and red indicator
:7-segment display and red indicator
:7-segment display and red indicator
:7-segment display
ZERO-PHASE CURRENT TRANSFORMER
To operate with Mikro’s ZCT series of current transformers
MECHANICAL
Mounting method Front panel Approximate weight 91.0 ± 0.5 mm
MK330A Self-Reclosing Earth Leakage Relay
SETTING
:Panel mount
:Standard DIN 96x96mm
:0.58kg (excluding ZCT)
Ordering Information
MODEL
DESCRIPTION
MK330A-230A
For 50Hz system, auxiliary
voltage 184~276VAC
MK330A-110A
For 50Hz system, auxiliary
voltage 94~127VAC
MK301A / 302A / 301E
Features
MK301A
Features for MK302A only
• Trip starting indicator
• Safety output contact
• Detection of no connection to current
• Earth leakage level indicators
transformer for extra safety
• Remote reset and remote test functions
• Relay tripped indicator
• High immunity to electrical interference
TYPICAL APPLICATION DIAGRAMS
AUX
N
MK301A or MK302A
PE
LOAD
NC
1
MK302A
2
NO
3
COM
4
5
6
7
SHUNT
TRIP
TRIP CONTACT
9
10
11
12
13
The EARTH wire
must not pass
through the ZCT
8
14
15
16
L1
L2
L3
N
L
AUX
N
MK302A
PE
LOAD
NO
MK301E
1
2
3
NC
COM COM NC
4
5
6
7
NO
The EARTH wire
must not pass
through the ZCT
8
TRIP CONTACT SAFETY CONTACT*
9
10
11
12
13
14
15
16
CONTACTOR
REMOTE
RESET*
L
AUX
L1
L2
L3
N
REMOTE TEST*
N
MK301E
PE
LOAD
NC
1
2
3
NO
4
COM
5
6
7
8
SHUNT
TRIP
TRIP CONTACT TRIP CONTACT 2**
9
10
11
12
13
14
** Applicable to MK301E series only
16
L1
L2
L3
N
* Applicable to MK302A series only
15
The EARTH wire
must not pass
through the ZCT
MK301A / 302A / 301E Earth Leakage Relay
L
Technical Data
CASE DIMENSIONS
Model MK301A / 302A -240A
Model MK301A / 302A -110A
Rated frequency VA rating
: 198 ~ 265 V AC
: 94 ~ 127 V AC
: 50 / 60 Hz
: 3 VA typical
96 mm
AUXILIARY SUPPLY
96 mm
90 mm
70 mm
Front
Side
SETTING RANGES
Sensitivity adjustment Delay time adjustment : 0.03 A to 30 A
: 0 sec to 3.0 sec
91.0 ± 0.5 mm
Setting accuracy Timing accuracy
:-15% to +0%
:±5%
MK301A / 302A / 301E Earth Leakage Relay
CONTACTS
Contact arrangement
Contacts rating
Contact material Expected electrical life Expected mechanical life
:1 x manual reset type
:1 x safety contact*
:NC and NO contacts available
:5 A, 250 V AC ( cosϕ = 1) contact rating
:Silver alloy
:100,000 operations at rated current
:5 x 106 operations
INPUTS
Remote Test* / Reset Inputs* :N.O. dry contact
INDICATORS
Auxiliary supply Time delay Trip Real-time leakage current :Green indicator
: Red indicator
:Red indicator
:Red indicator
ZERO - PHASE CURRENT TRANSFORMER
To operate with Mikro’s ZCT series of current transformer
MECHANICAL
Mounting method Front panel Approximate weight :Panel mounting
:Standard DIN 96mm x 96mm
:0.6 kg ( excluding ZCT )
ENVIRONMENTAL CONDITIONS
Temperature
Humidity
:-5˚C to +55˚C
:56 days at 93% RH and 40˚C non-condensing
* Applicable to MK302A series only
** Applicable to MK301E series only
Ordering Information
MODEL
DESCRIPTION
MK301A - 240A
MK301A - 110A
MK302A - 240A
MK302A -110A
MK301E - 240A
MK301E -110A
For 50 / 60 Hz system, auxiliary voltage 198 ~ 265 V AC
For 50 / 60 Hz system, auxiliary voltage 94 ~ 127 V AC
For 50 / 60 Hz system, auxiliary voltage 198 ~ 265 V AC
For 50 / 60 Hz system, auxiliary voltage 94 ~ 127 V AC
For 50 / 60 Hz system, auxiliary voltage 198 ~ 265 V AC
For 50 / 60 Hz system, auxiliary voltage 94 ~ 127 V AC
Panel Cutout
91.0 ± 0.5 mm
PERFORMANCE
DIN330
Features
• Detection of no connection to ZCT
• Numerical self reclosing earth leakage
relay
• Relay trip indicator
• Programmable current sensitivity and
time delay
• Relay alarm indicator
• Programmable persistent fault time and
reclaim time
• Programmable lockout auto reset time
• Incorporated positive safety feature into
trip contact
• Real-time leakage current display
• Leakage fault current recording
• Remote reset function
• Standard DIN rail mounting
• Protection against nuisance tripping
• Standard 35mm DIN rail mounting
• One programmable contact for flexibility
TYPICAL APPLICATION DIAGRAM
AUX
N
PE
L1
L2
L3
N
L
REMOTE
RESET
MIKRO
ZCT
DIN330
1
2
3
4
TRIP SAFE CONTACT
8
9
10
COM NO
11
5
6
7
CONTACTOR
PROGRAMMABLE CONTACT
13
14
NC COM NO
12
NC
LOAD
*
The trip safe contact is activated (terminal 9-10
closed) when the relay is in normal power-up
condition with the measured leakage current
less than 0.85 IDn.
The EARTH wire
must not pass
through the ZCT
DIN330 Earth Leakage Relay
• Programmable dead time and number of
shots
Technical Data
CASE DIMENSIONS
AUXILIARY SUPPLY
Model DIN330-240 A(6)
Rated frequency
VA rating
PERFORMANCE
:198 ~ 265 V AC
: 50 or 60 Hz
:3 VA typical
Setting accuracy Timing accuracy
71 mm
: -15% to +0%
: ±5%
20 mm
45 mm
SETTINGS
DIN330 Earth Leakage Relay
20 mm
70 mm
CONTACTS
Contact arrangement
Contact rating
Expected electrical life
Expected mechanical life
Ordering Information
: 3 latest tripped fault currents or “tSt” for manual test trip
: Non-volatile memory
INPUTS
Remote reset : N.O. dry contact
OUTPUTS
Trip safe contact
:Activated when the relay is in normal power-up condition with the
measured leakage current less than 0.85 IDn.
Programmable contact
:Activated according to user setting
INDICATORS
50% pre-fault alarm
Time delay
Leakage trip
Reclose lockout
ZCT fault
Real time leakage current
:Red indicator (Normal blink)
:Red indicator (Fast blink)
:7-segment display and red indicator
:7-segment display and red indicator
:7-segment display and red indicator
: 7-segment display
ZERO-PHASE CURRENT TRANSFORMER
To operate with Mikro’s ZCT series of current transformer
MECHANICAL
Mounting method
Approximate weight
: Standard 35 mm din rail mounting
: 0.38 kg (Excluding ZCT)
ENVIRONMENTAL CONDITIONS
Temperature
Humidity
Side
30 mm 20 mm 20 mm
:Change-over
:5A (NO) / 3A (NC) / 250 V AC1
:10,000 operations at rated current
:5 x 106 operations
RECORD
Fault record
Storage
Front
85 mm
Sensitivity adjustment
: 30 mA, 50 mA,
0.10 A –1.00 A (Step = 50 mA),
1.00 A – 10.0 A (Step = 1.00 A)
Time delay adjustment
: Instantaneous, 0.1s – 3.0s. Step = 0.10 sec.
Number of shots
:0 - 30. Step = 1. 0 = Disable auto reclose function
Dead time
:1 - 500 sec. Step = 1 sec.
Permanent fault time
:0 - 500 sec. Step = 1 sec. 0 = Disable function
Reclaim time
:0 - 500 minute. Step = 1 min. 0 = Disable function
Lockout auto reset time
:0 - 200 hour. Step = 1 Hrs. 0 = Disable function
Programmable contact
:Option 0 = Disable
Option 1 = All (Option 2 to 6)
Option 2 = ZCT error
Option 3 = Leakage trip, test trip, re-close lockout
Option 4 = Re-close lockout
Option 5 = Pre-fault alarm, leakage trip, test trip, reclose lockout
Option 6 = Re-close lockout, ZCT error
:-5˚C to +55˚C
:56 days at 93% RH and 40˚C non-condensing
MODEL
DESCRIPTION
DIN330 - 240 A
DIN330 - 240 A6
For 50 Hz system,
auxiliary voltage 240 V AC
For 60 Hz system,
auxiliary voltage 240 V AC
DIN310 / 310E
Features
Features For DIN310E only
• Numerical earth leakage relay
• Positive safety output contact
• Programmable current sensitivity and
time delay
• 50% pre-fault output contact
• Detection of no connection to ZCT
• Remote reset function
• Relay trip indicator
• Relay alarm indicator
• Real-time leakage current display
• Leakage fault current recording
• 50% pre-fault indicator
• Standard DIN rail mounting
TYPICAL APPLICATION DIAGRAMS
DIN310
AUX
PE
L1
L2
L3
N
L
N
MIKRO
ZCT
The EARTH wire
must not pass
through the ZCT
DIN310
1
2
3
4
5
6
7
13
14
SHUNT
TRIP
TRIP
CONTACT
8
9
10
11
COM NO
12
NC
LOAD
L
AUX
N
PE
L1
L2
L3
N
DIN310E
REMOTE
RESET
MIKRO
ZCT
DIN310E
1
ALARM CONTACT
8
2
3
4
TRIP CONTACT
9
10
COM NO
5
6
7
CONTACTOR
SAFETY CONTACT
11
12
NC
COM NO
13
14
NC
LOAD
The EARTH wire
must not pass
through the ZCT
DIN310 / 310E
Earth Leakage Relay
• Protection against nuisance tripping
Technical Data
CASE DIMENSIONS
:198 ~ 265 V AC
:198 ~ 265 V AC
: 50 or 60 Hz
:3 VA typical
Setting accuracy Timing accuracy
: -15% to +0%
: ±5%
20 mm
45 mm
DIN310-240 A(6)
DIN310E-240 A(6)
Rated frequency
VA rating
71 mm
PERFORMANCE
AUXILIARY SUPPLY
SETTING RANGES
Sensitivity adjustment
:
Time delay adjustment
:
30 mA, 50 mA,
0.10 A –1.00 A (Step = 50 mA),
1.00 A – 10.0 A (Step = 1.00 A)
Instantaneous, 0.1s – 3.0s. Step = 0.10 sec.
Front
20 mm
CONTACTS
Contact arrangement
Contact rating
Expected electrical life
Expected mechanical life
Earth Leakage Relay
DIN310 / 310E
: 3 latest tripped fault currents or “tSt” for manual test trip
: Non-volatile memory
85 mm
RECORD
Fault record
Storage
70 mm
:Change-over
:5A (NO) / 3A (NC) / 250 V AC1
: 10,000 operations at rated current
: 5 x 106 operations
INPUT
Remote reset* Side
30 mm 20 mm 20 mm
: N.O. dry contact
OUTPUTS
Trip Contact
Positive safety contact*
Pre-fault alarm contact*
:Activated if relay tripped or ZCT fault
:Activated when ZCT is connected properly to the relay
:Activated when leakage current exceeded 50% of sensitivity setting
INDICATORS
50% pre-fault alarm
Time delay
Leakage trip
ZCT fault
Real time leakage current
:Red indicator
:Red indicator
:7-segment display and red indicator
:7-segment display and red indicator
: 7-segment display
ZERO-PHASE CURRENT TRANSFORMER
To operate with Mikro’s ZCT series of current transformer
MECHANICAL
Mounting method
Approximate weight
: Standard 35 mm DIN rail mounting
: 0.38 kg (Excluding ZCT)
ENVIRONMENTAL CONDITIONS
Temperature
Humidity
* Applicable to DIN310E series only
:-5˚C to +55˚C
:56 days at 93% RH and 40˚C non-condensing
Ordering Information
MODEL
DESCRIPTION
DIN310 - 240 A
DIN310E - 240 A
DIN310 - 240 A6
DIN310E - 240 A6
For 50 Hz system,
auxiliary voltage 240 V AC
For 50 Hz system,
auxiliary voltage 240 V AC
For 60 Hz system,
auxiliary voltage 240 V AC
For 60 Hz system,
auxiliary voltage 240 V AC
DIN300 / 300E
Features
Features For DIN300E only
• 25 selectable sensitivity settings:
30 mA to 30 A
• 50% pre-fault output contact
• Remote test and remote reset functions
• 9 selectable time delays: 0ms to 3s
• Earth leakage level indicators
• Detection of no connection to ZCT
• Relay tripped indicator
• Trip starting indicator
• Protected against nuisance tripping
DIN300
PE
L1
L2
L3
N
N
S1
The EARTH wire
must not pass
through the ZCT
S2
1
2
3
4
5
6
7
SHUNT
TRIP
TRIP CONTACT
8
9
10
11
12
COM
13
NO
DIN300 / 300E
AUX
L
14
NC
1
N
2
3
4
50% PRE-FAULT CONTACT
8
9
COM
10
NO
11
PE
L1
L2
L3
N
AUX
REMOTE TEST
L
REMOTE RESET
LOAD
DIN300E
S1
The EARTH wire
must not pass
through the ZCT
S2
5
6
7
SHUNT
TRIP
TRIP CONTACT
12
NC COM
13
NO
14
NC
LOAD
Earth Leakage Relay
TYPICAL APPLICATION DIAGRAMS
Technical Data
CASE DIMENSIONS
71mm
AUXILIARY SUPPLY
: 198 ~ 265 V AC
: 94 ~ 127 V AC
: 50 / 60 Hz
: 3 VA typical
20mm
45mm
Model DIN300 / 300E -240A
Model DIN300 / 300E -110A
Rated frequency VA rating
SETTINGS RANGES
Sensitivity setting
Time delay setting
: 30 mA, 50 mA, 75 mA, 100 mA, 125 mA, 150 mA, 200 mA, 250 mA, 300
mA, 500 mA, 750 mA, 1A, 1.25A, 1.5A, 2A, 2.5A, 3A, 5A, 7.5A, 10A, 12.5
A, 15A, 20A, 25A, 30A.
: Instantaneous, 50 ms, 100 ms, 150 ms, 250 ms, 350 ms, 500 ms, 1s, 3 s.
20mm
Front view
PERFORMANCE
Setting accuracy Timing accuracy
71mm
:-15% to +0%
:±5%
Earth Leakage Relay
DIN300 / 300E
Contacts ( Trip / 50% pre-fault* )
Contact arrangement
:
Contact rating
:
Contact material
:
Expected electrical life
:
Expected mechanical life :
Change over
5 A, 250 V AC ( cosϕ = 1 )
Silver alloy
100,000 operations at rated current
5 x 106 operations
Side view
85mm
CONTACTS
30mm
20mm 20mm
INPUTS
Remote test* / Reset inputs* : N.O. dry contacts
ZERO - PHASE CURRENT TRANSFORMER
To operate with Mikro’s ZCT series of current transformer
INDICATORS
Auxiliary supply
Time delay
Trip
Leakage current*
:
:
:
:
Green indicator
Red indicator
Red indicator
5 red indicators for leakage levels
MECHANICAL
Mounting method
Approximate weight
: Din rail mounted
: 0.3 kg
ENVIRONMENTAL CONDITIONS
Temperature
Humidity
* Applicable to DIN300E model only
:-5˚C to +55˚C
:56 days at 93% RH and 40˚C non-condensing
Ordering Information
MODEL
DESCRIPTION
DIN300 - 240 A
For 50 / 60 Hz system,
auxiliary voltage 240 V AC
DIN300 - 110 A
For 50 / 60 Hz system,
auxiliary voltage 110 V AC
DIN300E - 240 A
For 50 / 60 Hz system,
auxiliary voltage 240 V AC
DIN300E - 110 A
For 50 / 60 Hz system,
auxiliary voltage 110 V AC
ZCT40S/60S/80S/120S
CASE DIMENSIONS
Front
C
A
40S
B
60S
D
G
E
H
G
D
H
F
F
40S / 60S / 80S
Bottom
120S
Bottom
DIMENSION (mm) Model
ZCT40S
ZCT60S
ZCT80S
80S
A
B
C
D
E
F
G
H
40
78
97
3.5
36
52
16
17.5
Ordering Information
120S
MODEL
DESCRIPTION
ZCT40S
ZCT60S
ZCT80S
ZCT120S
40mm inner diameter
60mm inner diameter
80mm inner diameter
120mm inner diameter
60
95
110
6
31.5
62
20.5
11
80
120
135
3.5
36
94
16
17.5
ZCT120S
120
180.5
179.5
6
37
147
20.5
16
ZCT 40S / 60S / 80S / 120S Zero-Phase Current Transformer
B
DVM
Features
Technical Data
• Built-in selector switch
Auxiliary supply VA rating
Input frequency Maximum input voltage • Easy-to-read, 14.2mm digit display
• DIN size casing
: 198 ~ 265 V AC
: 94 ~ 127 V AC
: 3 VA
: 47 ~ 66 Hz
: 500 Vrms
TYPICAL APPLICATION DIAGRAM
DVM360 Series
DVM100 Series
R
LINE
Y
B
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
Aux Supply
AC 240 V
Aux Supply
AC 240 V
91.5 mm
96 mm
Front
87 mm
91.0 ± 0.5 mm
Side
Panel Cutout
Ordering Information
MODEL
DESCRIPTION
DVM360 - 240A
DVM100 - 240A
DVM360 - 110A
DVM100 - 110A
Auxiliary voltage 240 V AC
Auxiliary voltage 240 V AC
Auxiliary voltage 110 V AC
Auxiliary voltage 110 V AC
91.0 ± 0.5 mm
CASE DIMENSIONS
96 mm
DVM Digital AC Voltmeter
N
DAM
Features
Technical Data
• Built-in selector switch
Auxiliary supply VA rating
Input frequency Maximum input Ammeter CT ratio Class
• Easy-to-read, 14.2mm digit display
• DIN size casing
• Wide selection of current transformer
(CT) ratio
: 198 ~ 265 V AC
: 94 ~ 127 V AC
: 3 VA
: 47 ~ 66 Hz
: 6 A continuous
: .../5 A
: 1.0
TYPICAL APPLICATION DIAGRAM
DAM100 / 1000 Series
DAM330 / 3000 Series
LINE
R
Y
1
2
3
4
5
6
7
8
9
10
11
12
Aux Supply
AC 240 V
1
2
3
4
5
6
7
8
9
10
11
12
Aux Supply
AC 240 V
91.5 mm
96 mm
96 mm
Front
87 mm
91.0 ± 0.5 mm
Side
Panel Cutout
91.0 ± 0.5 mm
CASE DIMENSIONS
DAM Digital AC Ammeter
B
Ordering Information
MODEL
/SERIES
WITH
SELECTOR
WITHOUT
SELECTOR
UNIT
DAM330
A
DAM3000
A
DAM100
A
DAM1000
A
For primary current
from 60 A to 500 A
For primary current
from 600 A to 5000 A
DAM 330 - XXXX
DAM 100 - XXXX
DAM 3000 - XXXX
DAM 1000 - XXXX
Order number
Order number
Model DAM 330 & DAM 100
ORDER NUMBER
DAM Digital AC Ammeter
DISPLAY
FORMAT
*CT RATIO
Model DAM3000 & DAM1000
ORDER NUMBER
*CT RATIO
0060
60 / 5 A
600
600 / 5 A
0100
100 / 5 A
800
800 / 5 A
0150
150 / 5 A
1000
1000 / 5 A
0200
200 / 5 A
1200
1200 / 5 A
0250
250 / 5 A
1500
1500 / 5 A
0300
300 / 5 A
1600
1600 / 5 A
0400
400 / 5 A
2000
2000 / 5 A
0500
500 / 5 A
2400
2400 / 5 A
2500
2500 / 5 A
3000
3000 / 5 A
3200
3200 / 5 A
3500
3500 / 5 A
4000
4000 / 5 A
4500
4500 / 5 A
5000
5000 / 5 A
Example: Model DAM 330 - 0060 for
digital ammeter with CT ratio
60 / 5 A.
*CT : Current Transformer
For other CT ratio, please contact
the manufacturer.
MODEL
DESCRIPTION
DAM330 - xxxx - 240A
Auxiliary voltage 240 V AC
DAM100 - xxxx - 240A
Auxiliary voltage 240 V AC
DAM330 - xxxx - 110A
Auxiliary voltage 110 V AC
DAM100 - xxxx - 110A
Auxiliary voltage 110 V AC
DAM3000 - xxxx - 240A
Auxiliary voltage 240 V AC
DAM1000 - xxxx - 240A
Auxiliary voltage 240 V AC
DAM3000 - xxxx - 110A
Auxiliary voltage 110 V AC
DAM1000 - xxxx - 110A
Auxiliary voltage 110 V AC
MU250 / 150
Product Description
MU150 and MU250 are voltage relays that combine various protections and starting delay.
MU150 Single-phase
MU150 is used for single-phase monitoring while MU250 is used for 3-phase monitoring.
Features
Features For MU250 only
• Microprocessor based numerical relay
• 3-Phase
• Undervoltage
• Unbalance
• Overvoltage
• Phase loss
• Delay-on
• Phase sequence
• 2 voltage-free output contacts
• With or without neutral connection
• Voltage and frequency display
• Phase to phase or phase to neutral monitoring
TYPICAL APPLICATION DIAGRAMS
MU250
L1
L2
L3
N
(OPTIONAL)
1
2
3
4
R1
8
5
6
7
13
14
R2
9
COM NO
10
11
NC
12
COM NO
NC
5
6
7
13
14
MU250
(Neutral connection is optional)
MU150
L
N
1
2
3
4
R1
8
R2
9
COM NO
10
NC
11
12
COM NO
NC
MU150
MU250 / 150 Voltage Relay
MU250 3-phase
Technical Data
CASE DIMENSIONS
71 mm
SETTING RANGES
:
:
:
:
:
1% to 25%
0.1s to 30s
1% to 20%
0.1s to 30s
0s to 999s
For MU250 only:
Unbalance
Time delay for unbalance
Phase loss
Phase sequence
:
:
:
:
3% to 20%
0.1s to 30s
Fixed time <0.1s
Fixed time <0.1s
20 mm
45 mm
Undervoltage
Time delay for undervoltage
Overvoltage
Time delay for overvoltage
Start time delay
Front
20 mm
70 mm
POWER SUPPLY INPUT
85 mm
Input voltage
: MU150: 220V(-25%) to 240V(+20%) AC (Phase-Neutral)
: MU250: 380V(-25%) to 415V(+20%) AC (Phase-Phase)
Supply frequency
: 45Hz to 65Hz
Maximum power consumption: MU250: 3VA
: MU150: 2.5VA
Side
CONTACTS
Contact arrangement
Contact rating
Contact material
Expected electrical life
Expected mechanical life
:
:
:
:
:
Change-over
5A, 250V AC (cos j=1)
Silver alloy
100,000 operations at rated current
5 X 106 operations
Ordering Information
MU250 / 150 Voltage Relay
INDICATORS
Auxiliary supply
Pickup indicator
Trip
: Green LED indicator
: Red LED indicator
: 7-segment display and red LED indicators
MECHANICAL
Mounting
Approximate weight
30 mm 20 mm 20 mm
: Din rail mounted
: MU150: 0.27kg
: MU250: 0.31kg
ACCURACY
Protection thresholds
Time delay
Measurements
:
:
:
:
± 3%
0 to 0.5s, ± 15% with minimum 40ms
0.6s and above, < ± 3%
± 3%
Temperature
Humidity
: -5 C to +55 C
: 56 days at 93% RH and 40 C non-condensing
ENVIRONMENTAL CONDITIONS
MODEL
DESCRIPTION
MU150-240V
Single-Phase,
220/230/240 V AC,
45-65 Hz power supply
MU250-415V
3-Phase,
380/400/415 V AC,
45-65 Hz power supply
MU2300
Introduction
Technical Data
The MU2300 is a microprocessor based
numerical relay for voltage protection
functions in electrical distribution network.
INPUTS Measuring input:
Features
Rated voltage input
Rated frequency :57-130 V
:50 / 60 Hz
Rated auxiliary voltage:
• Multifunction numerical voltage
protection relay
Model MU2300-150D
Model MU2300-240AD
• Low-set undervoltage stage (U<)
with definite-time or inverse-time
characteristic
: 24~150 V DC
: 85~265 V AC 110~340 V DC
Power consumption:
Binary Input:
External binary input
• High-set overvoltage stage (U>>) with
definite-time
• Negative sequence overvoltage
protection (U2>) with definite-time or
inverse-time characteristic
• Neutral displacement / residual
overvoltage protection (U0>)with definitetime or inverse-time characteristic
:85~265 V AC/DC
OUTPUTS
5 programmable contacts +1 IRF contact:
Rated voltage
Continuous carry
Make and carry for 0.2 s
: 250 V AC/DC
:5A
: 30 A
Contact specification:
Expected electrical life : 105 operations
Expected mechanical life : 5 x 106 operations
UNDER-VOLTAGE ELEMENT
• Multi-function isolated digital input with
wide input voltage range
Low set setting U< :5 - 130 V
High set setting U<< :5 - 130 V
Time multiplier, TMS :0.5 - 100
Low set Definite time tU< :0 - 600 s
High set Definite time tU<<:0 - 600 s
• Fault record and event code recording
OVER-VOLTAGE ELEMENT
• Five programmable voltage-free output
contacts
Low set setting U> :5 - 200 V
High set setting U>> :5 - 260 V
Time multiplier, TMS :0.5 - 100
Low set definite time tU> :0 - 600 s
High set definite time tU>>:0 - 600 s
• Can be used in single-phase or threephase operation
• Isolated RS485 Modbus - RTU
communication
NEGATIVE SEQUENCE OVER-VOLTAGE
ELEMENT
Negative sequence over-voltage setting, U2> : 5 - 200 V
Time multiplier, TMS : 0.5 - 100
Negative sequence over-voltage definite time tU2>
: 0 - 600 s
COMMUNICATION
RS485 Modbus - RTU
ENVIRONMENTAL CONDITIONS
Temperature
Humidity
RESIDUAL OVER-VOLTAGE ELEMENT
Residual over-voltage setting, U0> Time multiplier, TMS Residual over-voltage definite time tU0>
: 0.5 - 130 V
: 0.5 - 100
: 0 - 600 s
: -5˚C to +55˚C
: 56 days at 93% RH and
40˚C non-condensing
Overvoltage & Undervoltage Relay
• Low-set overvoltage stage (U>)
with definite-time or inverse-time
characteristic
: 6 ~ 10 VA typical
: 5 ~ 9 W typical
MU2300
• High-set undervoltage stage (U<<) with
definite-time
AC auxiliary voltage
DC auxiliary voltage
UNDERVOLTAGE CHARACTERISTIC
CASE DIMENSIONS
OVERVOLTAGE CHARACTERISTIC
10
TMS=8
TMS=
10
5
TMS=
3
TMS=
142 mm
10
165 mm
100
Operating time (sec)
Operating time (sec)
100
1
TMS=10
TMS=8
TMS=5
TMS=3
0.1
Front
TMS=1
1
0
1
TMS=
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
0.01
Applied voltage/relay setting voltage
0
2
4
6
8
10
12
14
16
18
20
Applied voltage/relay setting voltage
198 mm
34 mm
A
B
C
2
3
5
6
8
9
12
13
External
Digital
14
Input
Uaux
A
32
33
31
C
2
38
37 R2
5
3
6
40
39 R3
8
9
42
41 R4
11
27
26 R5
12
28 Internal
30 Relay
29 Failure
22
13
External
Digital 14
Input
Termination Resistor
23 N-
A
24 P+
25
Uaux
Communication
Cable Shield
B
38
37 R2
40
39 R3
129 1 mm
42
41 R4
27
26 R5
28 Internal
30 Relay
29 Failure
22
Panel Cutout
Termination Resistor
23 N-
24 P+
25
Communication
Cable Shield
B
2Vp-p + Vresidual connection
A
B
C
3
5
6
8
9
11
12
13
External
Digital
Input 14
Uaux
Ordering Information
A
B
C
2
32
33
31
C
34 Trip Contact
36 R1
35
Phase rotation
3Vp-p + Vresidual connection
A
32
33
31
C
Phase rotation
MU2300
Overvoltage & Undervoltage Relay
11
34 Trip Contact
36 R1
35
Side
139 1 mm
A
B
C
136 mm
TYPICAL APPLICATION DIAGRAMS
34 Trip Contact
36 R1
35
2
38
37 R2
5
3
6
40
39 R3
8
9
42
41 R4
11
27
26 R5
12
28 Internal
30 Relay
29 Failure
22
13
External
Digital 14
Input
Termination Resistor
23 N-
A
24 P+
25
B
Phase rotation
3Vp-n + Vresidual connection
Uaux
Communication
Cable Shield
32
33
31
C
B
Phase rotation
3Vp-n connection
34 Trip Contact
36 R1
35
38
37 R2
40
39 R3
42
41 R4
27
26 R5
28 Internal
30 Relay
29 Failure
22
Termination Resistor
23 N-
24 P+
25
Communication
Cable Shield
MODEL
DESCRIPTION
MU2300-150D
For 50 / 60 Hz system, auxiliary voltage 24 ~ 150 V DC
MU2300-240AD For 50 / 60 Hz system,
auxiliary voltage 85 ~ 265 V
AC or 110~340 V DC
RPR415
Features
Product Description
• Reverse power monitoring
The RPR 415 relay is a directionally controlled timing relay used to protect AC generators from motoring. When such a condition
occurs and the reverse current exceeded
the customer adjustable preset limit and the
current persists for a predetermined delay
time, the trip relay operates to diconnect the
circuit.
• 3-phase-4-wire system
• Adjustable reverse power setting
• Adjustable tripping time delay
• Indicators for auxiliary power, trip delay
and trip status
• Test button
Technical Data
INPUT
TYPICAL APPLICATION DIAGRAM
DIRECTION OF CURRENT FOR OPERATION
L1
P1
S1
L2
Rated voltage (U n) : 380/440 V AC
Rated current (I n) : 5 A
Rated frequency
: 50 Hz / 60 Hz
Overload
: 1.2 x U n, 2 x I n continuous
1.2 x U n, 10 x I n for 3 sec
OUTPUT
L3
N
1
2
3
COM NC
9
10
11
4
5
6
7
8
13
14
15
16
Contact Arrangement:Change-over
Contact rating
:5 A, 250 V AC ( cosϕ = 1 )
Contact material
:Silver alloy
Expected electrical life: 100,000 operations at
rated current
Expected mechanical life: 5 x 106 operations
NO
12
SETPOINT
:
:
:
:
2% to 20% reverse current
Adjustable 0 sec to 20 sec
1%
0.5%
ENVIRONMENTAL CONDITIONS
Temperature : -5˚C to +55˚C
Humidity
: 56 days at 93% RH and 40˚C
non-condensing
142 mm
96 mm
96 mm
Front
132 mm
91.0 ± 0.5 mm
Side
Panel Cutout
Ordering Information
MODEL
DESCRIPTION
RPR415
Auxiliary voltage 415 V AC
91.0 ± 0.5 mm
CASE DIMENSIONS
RPR415 Reverse Power Relay
Range
Time delay
Hysteresis
Repeatability
Front Panel Description
1
11%
6.6%
2%
15.5% 5s
20%
%
10s
15s
3
0s
20s
DELAY
5
TEST
2
RESET
4
Front Panel Description
1. Light Indicators
Indicator
AUX
Indicator
DELAY
Indicator
TRIP
OFF
OFF
OFF
No auxiliary power supply.
ON
OFF
OFF
System normal mode. No tripping.
ON
ON
OFF
Status
Reverse current exceeded pre-set limit.
Time delay countdown started.
ON
OFF
ON
System tripped.
2. Reverse Current Adjustment Knob
• For setting the minimum reverse current before tripping
• Setting range from 2% to 20%
RPR415 Reverse Power Relay
3. Delay Timing Adjustment Knob
• Trip time delay setting
• Setting range from 0 to 20 sec
4. Test Button
• Press the test button to simulate a trip condition.
5. Reset Button
• The reset button is for reseting the light indicator after tripping.
• To reset, press the reset button once
• The tripping contact will be released once the reverse current fall
below the pre-set limit. However, the TRIP light indicator is latched.
Press the reset button to reset the light indicator to normal state.
MX200A/180A/160A
Features
Product Description
• Electronic monitoring relay
MX160A, MX180A & MX200A are single or
3-phase monitoring relays. The relays are
designed for application where it required
to maintain the voltage within set limits.
A built-in adjustable time delay prevents
nuisance tripping.
• Voltage monitoring for single 3-phase system
MX200A
Under & Over Voltage Relay
• Phase failure monitoring
• Adjustable voltage limit
• Adjustable delay time
• Indicators for voltage fault
• Indicators for power and output ON
WIRING DIAGRAM
Over Voltage Relay
Single-Phase System
3-Phase System
L
N
L3
L2
L1
N
5
Under Voltage Relay
7
8
3
9
2
MX160A
6
4
1 11
6
5
7
4
8
3
10
9
2
1
11
10
OPERATIONS DIAGRAM
i ) Over Voltage Function**
Over Voltage Limit
Hysteresis
R
Y
B
Relay
ON
T
>U LED ON
ii ) Under Voltage Function*
R
Y
B
Hysteresis
Under Voltage Limit
Relay
ON
<U LED ON
T
MX200A / 180A / 160A 3 - Phase Voltage Control Relay
MX180A
Technical Data
POWER SUPPLY INPUT
3-PHASE SYSTEM
Phase-to-phase voltage
SINGLE PHASE
Phase-to-neutral voltage
Frequency range
Max. power consumption
Input connections
For 3-phase model
For single-phase model
: 380 V AC ± 20%
400 V AC ± 20%
415 V AC ± 20%
: 220 V AC ± 20%
230 V AC ± 20%
240 V AC ± 20%
: 45 to 65 Hz
: 3 VA
: Phase L1, L2, L3 to pin 5, 6, & 7
Neutral to pin 11
: Phase L to pin 5, 6 & 7***
Neutral to pin 11
SETTING RANGES
Lower voltage limit *
Upper voltage limit **
Delay time, T
: 78% - 98%
: 102% - 122%
: 0.1 - 10s
HYSTERESIS
≤1% of rms - value
CASE DIMENSIONS
MX200A / 180A / 160A 3 - Phase Voltage Control Relay
CONTACT OUTPUT
Cotact arrangement
Contact rating
Contact material
Expected electrical life
Expected mechanical life
80 mm
: SPDT change-over contacts.
: 5A, 250 V AC ( cosϕ=1)
: Silver alloy
: 100,000 operations at rated current
: 5 x 106 operations
72.5 mm
35 mm
INDICATORS
Power supply ON
Output ON
Under voltage limit (U<) *
Over voltage limit (U>) **
: Green indicator
: Red indicator
: Red indicator
: Red indicator
MECHANICAL
Mounting
Approximate weight
: Circular 11-pin plug-in socket
: 0.25kg
Ordering Information
MODEL
FUNCTION
Under
Over
Voltage
Voltage
Monitoring Monitoring
Supply
Voltage
V AC
MX160A - 380
YES
NO
380
MX160A - 400
YES
NO
400
MX160A - 415
YES
NO
415
MX180A - 380
NO
YES
380
** Applicable to MX180A and MX200A only
MX180A - 400
NO
YES
400
*** For single phase connection, short pin 5,6 & 7
MX180A - 415
NO
YES
415
MX200A - 380
YES
YES
380
MX200A - 400
YES
YES
400
MX200A - 415
YES
YES
415
ENVIRONMENTAL CONDITIONS
Temperature
Humidity
: -5˚C to +55˚C
: 56 days at 93% RH and 40˚C
non-condensing
* Applicable to MX160A and MX200A only
MX100/50
Features
Introduction
• Electronic monitoring relay
This phase sequence and phase failure relay is designed for application where the
3-phase supply needs to be continuously
monitored for proper sequencing and phase
loss. Commonly used to protect a 3-phase
motor.
• Phase sequence monitoring*
MX100
Phase Sequence &
Phase Failure monitoring
• Phase failure monitoring
• Plug-in type module
• Indicators for power and alarm status
WIRING DIAGRAMS
Example 2
Example 1
L3
L2
L1
3~
6
5
L3
L2
L1
N
3~
4
8
4
Phase Failure monitoring
3
9
3
2
1
11
6
5
7
MX50
8
9
2
10
7
1
11
10
Condition Pin 5
Pin 6
Pin 7
Relay
Remark
1
L1
L2
L3
ON
System healthy
2
Loss
L2
L3
OFF
Phase failure
3
L1
Loss
L3
OFF
Phase failure
4
L1
L2
Loss
OFF
Phase failure
5
L2
L1
L3
OFF
Sequence fault*
6
L3
L2
L1
OFF
Sequence fault*
* Applicable to MX100 model only
MX100 / 50 3-Phase Voltage Sequence/Failure Control Relay
FUNCTION TABLE
Technical Data
CASE DIMENSIONS
POWER SUPPLY INPUT
Phase-to-phase voltage
: 230 V AC ±20%
: 400 V AC ±20%
Frequency range
: 45 to 65 Hz
Max power consumption
: 3 VA
Input connections
: Phase L1 to pin 5
Phase L2 to pin 6
Phase L3 to pin 7
Neutral (optional) to pin 11
72.5 mm
CONTACT OUTPUT
Contact arrangement
Contact rating
Contact material
Expected electrical life
Expected mechanical life
80 mm
:
:
:
:
:
35 mm
SPDT change-over contacts
5 A, 250 V AC ( cosϕ = 1 )
Silver alloy
100,000 operations at rated current
5 x 106 operations
INDICATORS
Power supply ON
Output ON
: Green indicator
: Red indicator
MECHANICAL
Mounting
Approximate weight
: Circular plug-in socket
: 0.25 kg
MX100 / 50 3-Phase Voltage Sequence/Failure Control Relay
ENVIRONMENTAL CONDITIONS
Temperature
Humidity
: -5˚C to +55˚C
: 56 days at 93% RH and 40˚C
non-condensing
Ordering Information
MODEL
DESCRIPTION
MX100 - 230
Auxiliary voltage 230 V AC
MX100 - 400
Auxiliary voltage 400 V AC
MX50 - 230
Auxiliary voltage 230 V AC
MX50 - 400
Auxiliary voltage 400 V AC
PFR140/120/80/60
Features
• Microprocessor based intelligent auto
switching control
• Last step can be used as alarm/fan output
• Automatic C/K and rated step adjustment
• Under/over voltage alarm, under/over
compensate alarm & high harmonic
distortion alarm
• Automatic CT polarity correction
• User-friendly setting
• Display of power factor, current & total
harmonic distortion of current
• Complies with IEC 61000-6-2 standard
• Programmable sensitivity
Technical Data
RATINGS AUXILIARY POWER SUPPLY
CURRENT INPUT
Current Supply voltage
Operating Limits Consumption Rated frequency Rated current ( In ) : 5 A
Operating Limits : 0.05 A to 6.5 A
Rated Frequency : 50 Hz or 60 Hz
: 220~240 V AC / 380~415 V AC
: -15% + 10%
: 10 VA max
: 50 Hz or 60 Hz
RELAY OUTPUT
: 6 / 8 / 12 / 14 ( PFR60 / PFR80 / PFR120 / PFR140 )
: NO contacts type
: 5 A, 250 V AC ( cosϕ = 1 )
: Silver alloy
: 100,000 operations at rated current
: 5 x 106 operations
: 12 A continuous
CONTROL RANGE
Power factor setting C/K setting Switching sensitivity Reconnection time for
same step THD threshold Switching Program Rated step coefficient : 0.8 inductive - 0.8 capacitive
: 0.03 - 1.20 / Automatic
: 5 - 600 s/step
: 5 - 240 s
: 0.20 - 3.00 ( 20% - 300% ) / OFF
: Automatic / Automatic Rotate / 4-quadrant / Manual
: 0 / 1 / 2 / 3 / 4 / 5 / 6 / 8 / 12 / 16
( Automatic if C/K set to Auto )
MECHANICAL
Mounting Dimension ( h x w x d ) Approximate weight : Panel mounting
: 144mm x 144mm x 90mm
: 1 kg
ENVIRONMENTAL CONDITIONS
Temperature
Humidity
: -5˚C to +55˚C
: 56 days at 93% RH and 40˚C non-condensing
PFR140 / 120 / 80 / 60 Power Factor Regulator
Numbers of outputs Contact arrangement Contact rating
Contact material
Expected electrical life
Expected mechanical life
Max current for the
common terminals TYPICAL APPLICATION DIAGRAM
MAIN
N L3 L2 L1
CASE DIMENSIONS
144 mm
P2
CURRENT
/5A
11
12
13
14
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
11
12
14
15
16
AUX
VOLTAGE
For 220~240 V AC Model Only
144 mm
P1
Power Factor Regulator
15
16
17
18
19
20
21
22
23
24
13
AUX
VOLTAGE
220~240 V AC
14
380~415 V AC
13
Front
FUSE
90 mm
76 mm
K14
K13
K2
K1
Side
LOAD
Panel
Cutout
138 mm
138 mm
PFR140 / 120 / 80 / 60 Power Factor Regulator
Ordering Information
MODEL
DESCRIPTION
PFR60 - 415 - 50
6 Steps, 50 Hzsystem,auxiliary voltage 380~415 V AC
PFR80 - 415 - 50
8 Steps, 50 Hzsystem,auxiliary voltage 380~415 V AC
PFR120 - 415 - 50
12 Steps, 50 Hzsystem,auxiliary voltage 380~415 V AC
PFR140 - 415 - 50
14 Steps, 50 Hzsystem,auxiliary voltage 380~415 V AC
PFR60 - 220 - 50
6 Steps, 50 Hzsystem,auxiliary voltage 220~240 V AC
PFR80 - 220 - 50
8 Steps, 50 Hzsystem,auxiliary voltage 220~240 V AC
PFR120 - 220 - 50
12 Steps, 50 Hzsystem,auxiliary voltage 220~240 V AC
PFR140 - 220 - 50
14 Steps, 50 Hzsystem,auxiliary voltage 220~240 V AC
PFR60 - 415 - 60
6 Steps, 60 Hzsystem,auxiliary voltage 380~415 V AC
PFR80 - 415 - 60
8 Steps, 60 Hzsystem,auxiliary voltage 380~415 V AC
PFR120 - 415 - 60
12 Steps, 60 Hzsystem,auxiliary voltage 380~415 V AC
PFR140 - 415 - 60
14 Steps, 60 Hzsystem,auxiliary voltage 380~415 V AC
PFR60 - 220 - 60
6 Steps, 60 Hzsystem,auxiliary voltage 220~240 V AC
PFR80 - 220 - 60
8 Steps, 60 Hzsystem,auxiliary voltage 220~240 V AC
PFR120 - 220 - 60
12 Steps, 60 Hzsystem,auxiliary voltage 220~240 V AC
PFR140 - 220 - 60
14 Steps, 60 Hzsystem,auxiliary voltage 220~240 V AC
PFR96 / PFR96P
Features
• Microprocessor based intelligent auto
switching control
• Automatic C/K and rated step adjustment
• Automatic CT polarity correction
• Display of power factor & current
• Programmable sensitivity
• Last step can be used as alarm/fan output
• Under/over voltage alarm, under/over
compensate alarm
• User-friendly setting
• Complies with IEC 61000-6-2 standard
For PFR96
For PFR96P
• For single-phase system
• For 3-phase system
Technical Data
RATINGS AUXILIARY POWER SUPPLY
CURRENT INPUT
Model PFR96
Model PFR96P
Operating Limits Consumption Rated frequency Rated current ( In )
Operating Limits Rated frequency : 110 ~ 120 V AC /
220 ~ 240 V AC
: 380 ~ 415 V AC
: -15% + 10%
: 10 VA max
: 50 Hz or 60 Hz
:5A
: 0.15 A to 6.5 A
: 50 Hz or 60 Hz
CONTROL RANGE
Power factor setting C/K setting Switching sensitivity Reconnection time for
same step Switching Program Rated step coefficient : 0.8 inductive - 0.8 capacitive
: 0.03 - 1.20 / Automatic
: 5 - 600 s/step
: 5 - 240 s
: Automatic / Automatic Rotate / 4-quadrant / Manual
: 0 / 1 / 2 / 3 / 4 / 5 / 6 / 8 / 12 / 16
( Automatic if C/K set to Auto )
MECHANICAL
Mounting : Panel mounting
Dimension ( h x w x d ) : 96mm x 96mm x 70mm
Approximate weight : 0.6 kg
ENVIRONMENTAL CONDITIONS
Temperature
Humidity
: -5˚C to +55˚C
: 56 days at 93% RH and 40˚C non-condensing
PFR96 / PFR96P
Numbers of outputs :6
Contact arrangement : NO contacts type
Contact rating
: 5 A, 250 V AC ( cosϕ = 1 )
Contact material
: Silver alloy
Expected electrical life : 100,000 operations at rated current
Expected mechanical life : 5 x 106 operations
Max current for the
common terminals : 12 A continuous
Power Factor Regulator
RELAY OUTPUT
TYPICAL APPLICATION DIAGRAM
Diagram 1 - For model PFR96
Diagram 2 - For model PFR96P
MAIN
N L3 L2 L1
MAIN
N L3 L2 L1
6
5
6
VOLTAGE
220 V AC /
110 V AC
4
P1
3
2
P2
Power Factor
Regulator
7
5
4
3
2
CURRENT
/5A
1
16
7
14
6
13
5
12
4
11
P1
3
10
2
P2
9
1
8
FUSE
15
FUSE
16
6
VOLTAGE
380~415
V AC
CURRENT
/5A
Power Factor
Regulator
8
FUSE
15
5
14
4
13
3
12
2
11
1
10
9
1
FUSE
K5
K1
LOAD
K6
K5
K1
K6
LOAD
DESCRIPTION
PFR96 - 220 - 50
6 Steps, for 50 Hz system, auxiliary voltage 220~240 V AC
PFR96 - 220 - 60
6 Steps, for 60 Hz system, auxiliary voltage 220~240 V AC
PFR96 - 110 - 50
6 Steps, for 50 Hz system, auxiliary voltage 110~120 V AC
PFR96 - 110 - 60
6 Steps, for 60 Hz system, auxiliary voltage 110~120 V AC
PFR96P - 415 - 50
6 Steps, for 50 Hz system, auxiliary voltage 380~415 V AC
PFR96P - 415 - 60
6 Steps, for 60 Hz system, auxiliary voltage 380~415 V AC
CASE DIMENSIONS
96 mm
96mm
MODEL
Front
90 mm
70 mm
Side
91.0 ± 0.5 mm
Panel
Cutout
91.0 ± 0.5 mm
PFR96 / PFR96P
Power Factor Regulator
Ordering Information
AN112/120
Programmable Alarm Annunciator
The AN112/120 series Alarm Annunciator provides ideal solution for all your alarm system
management and requirement. It comes with either 12 or 20 windows, and due to the
use of microprocessor-based design, the alarm annunciator is highly flexible in terms of
functionality and programmability, suitable for all application and industries.
Features
• 12 or 20 windows. Replaceable super-bright LED modules, with choice of amber or red
illumination
• 11 Alarm Sequences as per ISA-18.1 standard
• Each channel/window fully field programmable, either from front panel built-in
pushbutton or using PC
• Option of either RS232 or RS485 MODBUS-RTU communication. Comes with user-friendly
configuration software.
• Repeat relay for each window as well as numerous configurable multifunction output
relays for connection to external equipment to form alarm management system
• Sleep or unattended mode feature is available, for stations not permanently manned
• Auto-silence and auto-acknowledge features, with delay settable from 1 – 255 s
TYPICAL CONNECTION DIAGRAM
4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1
C12
C11
C10
C8
C7
C6
C5
C4
C9
- +
- +
- +
- +
- +
- +
- +
D- D+
Sleep
1 2
RS232
RS485
1 2 3 4
Mute
Ack
Button
1 2 3
1 2 3 4 5 6 7
RBCK
SSP
AUX3 AUX2 AUX1
Relay output
1 2 3 4 5 6 7 8 9 10
C1
C2
C3
1 2 3 4 1 2 3 4 1 2 3 4
Tests And Standards
Electrostatic discharge IEC61000-4-2, Class III, air discharge
Electrostatic discharge IEC61000-4-2, Class III, contact discharge
Electrical fast transient IEC61000-4-4
Surge immunity IEC61000-4-5
Enclosure protection when panel mounted
8 KV
6 KV
4 KV, 5/50ns
4 KV, L to E
Front: IP41
Enclosure: IP30
Alarm Annunciator
Power
AN112 / 120
Reset
Test
1Rst
Dis
- +
Power
Ground - +
- +
- +
- +
- +
+ -
Technical Data
CASE DIMENSIONS
WINDOW
50 x 30 mm.
White translucent lens.
Red, Amber. Coloured by field replaceable LED module.
Fast: 1.4 Hz ( 0.4s on, 0.4s off ),
Slow: 0.45 Hz ( 1.1s on, 1.1s off ),
Intermittent: ( 0.4s on, 1.8s off )
ALARM SEQUENCES
M, A, R, R-12, F1A, F1M, F2A, F2M, F3A, F3M, Follower
TYPE OF MOUNTING
Panel Mounting
237 mm
217 mm
Window Dimension: Type: Colours:
Windows Flash
AN120 Front
AUXILIARY POWER INPUT
Fuse protected.
AN1xx-30
AN1xx-110
Power consumption
132 mm
24-36 V DC or 18-27 V AC.
88-132 V DC or 64-95 V AC.
AN112: 6 W, AN120: 8 W
186 mm
ALARM CONTACT INPUTS
Opto-isolated inputs
AN1xx-30
AN1xx-110
Input current
24-36 V DC or 18-27 V AC.
88-132 V DC or 64-95 V AC.
3 mA typical
AN120 Side
RELAY OUTPUTS
Repeat relays
AUX1-AUX3,
RBACK, SSP
Potential free for each alarm point.
5 A at 250 V AC, 3 A at 30 V DC. Resistive load.
237 mm
5 A at 250 V AC, 5 A at 30 V DC. Resistive load.
Wire size 28-14 AWG. ( 0.08mm2 to 2.5mm2 )
Removable screw type terminal block ( removable )
157 mm
TERMINALS
ENVIRONMENT
Operation temperature
Storage temperature Humidity -20 to 60˚C
-20 to 80˚C
0 - 95% RH, non condensing
AN112 Front
132 mm
AN112 / 120
Hardware interface
AN1xx - xx - x - A: RS232
AN1xx - xx - x - B: Isolated RS485
Protocol Baud rate
Modbus - RTU
300 to 57600
126 mm
AN112 Side
ENVIRONMENTAL CONDITIONS
Temperature
Humidity
: -5˚C to +55˚C
: 56 days at 93% RH and 40˚C non-condensing
1.5 mm
Ordering Information
Order code:
AN1
-
-
-
A: RS 232 communication
B: RS 485 communication
0: without repeat relays
1: with repeat relays
Power Supply: 30, 110 V DC
Number of Windows: 12, 20
For example: 12 windows, 30 V DC, with repeat relays, RS232 communication:
AN112-30-1-A
132 mm
Alarm Annunciator
COMMUNICATION
206 mm
Bottom