NOARK Electric (Shanghai) Co., Ltd, as a subsidiary of CHINT Group (located in Shanghai with an area of approximately 391
acres), is committed to bring a high-end brand to low voltage electrical market. With over 45 million US dollar investment,
NOARK Electric is equipped with the most up-to-date technologies and production facilities. A professional R&D team,
comprised of more than 100 professors and doctors possessing some exclusive technologies patents such as modern
simulation, has been working hard to achieve the intelligent low voltage distribution and control products line with high quality,
performance and stability.
The first generation Ex9 series of intelligent low voltage electrical products, incorporating the latest design, electronic and
simulation technologies, reach the top industry expectations. This product series not only set multiple functions into ever
smaller size, but also includes data acquisition, communications, and intelligent remote control modules, which reward Noark
with up to 54 exclusive patents including invention, practical application and design. We firmly adhere to the concept of "best
products derive from best raw materials ", which is also the principle of production. It is realized by cooperating with qualified
suppliers with a very high selection standard. NOARK Electric is the first Chinese company in low voltage electrical industry
implementing ISO/TS 16949 quality system. Besides complying with all compulsory domestic standards, full range of products
is accredited by CB organization based on up-to-date IEC standards.
Through a global marketing network, Noark has successfully contributed its efforts to provide complete solution and highlyefficient, highly-reliable,highly-intelligent and energy-saving low voltage products to some sophisticated industry areas, such
as power, smart grid, renewable energy,petrochemical, machinery manufacturing, real estate and construction.
We Believe,
Remarkable technical innovations bring reliable products!
Advanced technical ideas create intelligent electrical apparatus for the future!
Contents
Features
01
Product Overview
Product Advantages
Standards and Certifications
Operating Conditions
01
02
06
06
Functions
07
Parameters
08
Ex9M Series Circuit Breaker for Power
Distribution Protection
Ex9M Series Circuit Breaker for Motor
Protection
Ex9M Switch Disconnector
EX9MD Series DC Circuit Breaker
08
10
12
16
Accessories
16
Ex9ML Residual Current Protection Module
Internal Accessories
External Accessories
16
17
18
Selection
20
Ex9M Moulded Case Circuit Breaker
Ex9M Moulded Case Circuit Breaker(Electronic type)
Ex9MSD Switch Disconnector
Ex9ML Residual Current Protection Module
Accessories
20
21
22
23
24
Features
Product Overview
Thermal-magnetic type
.
Electronic type
AC distribution protection
AC distribution protection
DC distribution protection
Motor protection
Motor protection
Switch disconnector
Residual current protection
AC Residual current protection
DC switch disconnector
AC switch disconnector
Several breaking capacities exist for each model of circuit breaker,
meeting the demands for varying types of protection:
Standard type - S and N
Used in residential building, public buildings and industrial plants
150kA
120kA
High-breaking capacity type - Q, R and H
Used in industrial production line and key electric power equipment
100kA
85kA
Current limiting type - V and P
Used in heavy industry and special industry
70kA
50kA
36kA
Ex9M5
Ex9M4
Ex9M3
Ex9M2
Ex9M1
S
N
Q
R
H
V
P
For each Ex9M circuit breaker, several rated current levels are available.
Model
Rated current (A)
16
20
25
32
40
50
63
80
100 125 160 180 200 225 250 315 350 400 500 630 700 800
Ex9M1
Ex9M2
Ex9M3
Ex9M4
Ex9M5
Ex9M1 is adjustable for thermal protection, range: IR=(0.8~1.0)In
Ex9M2 is adjustable for thermal and magnetic protection, range: IR=(0.8~1.0)In,Ii=(5~10)In
Ex9M3 Ex9M4 and Ex9M5 is the same as Ex9M2
01
Features
Switch Disconnector
[Primary distribution panel]
A product equal to the size of the circuit breaker,
commonly used in the connection and isolation between
the power loads consumers and different busbars.
≤1000A
Cannot cut off the short-circuit current, has no
protective functions, and may be used in conjunction
with the fuse.
≤1600A
15-40kA
[Secondary distribution panel]
≤400A
≤63A
≤63A
≤10kA
≤40A
≤25kA
M
M
Patented
[Control
cabinet]
≤630A
≤10kA
M
Building utilities
≤160A:15-25kA
≤400A:20-80kA
[Terminal
[Control
distribution panel] cabinet]
[Control cabinet]
Product Advantages
[Secondary distribution panel]
15-25kA
≤160A
Bearing type axis
20-80kA
≤6kA
M
M
Terminal power
Continuous
Production facilities
distribution for
process control
and individual equipment
buildings
technology
The innovative rotating shaft with bearing allows the
circuit breaker to:
* Smaller main tension spring force and mechanism
friction force
* Lower mechanism abrasion
* A more quick and flexible mechanism action
The innovative rotating shaft with bearing brings the
user:
* A type of high-performance circuit breaker with the
smallest operational force
Model
Operational
force
Ex9M1
Ex9M2
3P
3P
4P
4P
Ex9M3
3P
4P
Ex9M4
3P
4P
Ex9M5
3P
4P
Closing force
44N 46N 55N 82N 80N
98N 110N 121N 110N 121N
Opening force
24N 24N 39N 55N 77N
89N
Re-tripping force
36N 38N 36N 54N 102N 115N 133N 148N 133N 148N
98N 115N 98N 115N
A kind of durable, high-performance circuit breaker:
* The user will be able to reduce the frequency and
cost of changing the circuit breaker due to its longer
endurance.
Mechanical life (cycles)
Electrical life (cycles)
5000
15000
5000
15000
1000
7000
10000
7000
10000
4000
4000 2000
Ex9M1
standard*
1000 2000
Ex9M2
standard*
1000
Ex9M3
1000
standard*
Ex9M4
500
standard*
Ex9M5
standard*
5000
Ex9M1
4000
standard*
Ex9M2
standard*
2500
Ex9M3
standard*
Ex9M4
standard*
Ex9M5
standard*
02
Features
Snap action
Patented
technology
The breaking speed of the circuit breaker is accelerated (breaking time
within 2ms), and its breaking capacity and current capacity are improved
by utilizing gas-flushing principle.
There are several different breaking capacities for each model of the
Ex9M circuit breaker. Therefore, users may choose the most optimal
breaker as per their actual demands.
The maximum breaking capacity of each model of Ex9M circuit breaker
is up to 150 kA.
Ｉ
【Gas-Flushing Principle】
When the circuit breaker breaks the short circuit current, large quantities
of high-temperature and high-pressure gas will be generated.
A special gas flow path is designed for the Ex9M breaker, which will
lead gas being generated to the fast-actuating mechanism. The auxiliary
mechanism is activated by the gas pressure, and the entire breaking time
may be controlled within 2 ms. Consequently, the damages caused by the
short circuit current to the electric components and the busbar are greatly
decreased.
Prospective peak
value
Prospective short
circuit current
Current limiting means the limiting increase of the short circuit current in
a circuit. In a circuit protected by the Ex9M product series, both the peak
value and energy I2t of the short circuit current generated are far less than
expected.
Actual peak
value
Limited let-through
current
Energy after
current-limiting
U-Type repulsive
electrical circuit,
intensifies the repulsion
forces and creates
a fast-contact
opening.
Ｉ
Current-limiting capacity
Ｔ
Upper fixed contact
Force F1
Force F2
ＩLower fixed contact
U-Type fixed contact design
The pre-breaking technique may be realised by means of a unique U-Type
fixed contact.
The pre-breaking technique refers to that of the electrodynamic force
generated through the U-Type fixed contact and that which occurs on
moving contact are mutually repulsed when the short circuit current flows
through acontact system. The higher the short circuit current, the bigger
the repulsive electrodynamic forces they generate simultaneously. Prior to
releasing, the electrodynamic repulsive forces may separate the moving
contact from the fixed contact, and the equivalent resistance between
these two contacts is increased by stretching the electrical arc.
Double break design
The current-limiting function of the pre-breaking technique is enhanced
because of an increase in instantaneous arc resistance and arc voltage and
a fast drop in the current increase rate.
Reduces the damage and loss of equipment and the power lines caused
by a short circuit current, improves the safety, and cuts down on the cost
of a secondary protection device.
AX
AL
AX
Modularized design
Circuit breakers: For circuit breakers within the same frame, without
reference to the size of the breaking capacity and rated current, the
dimension is the same.
Accessories: Users may select accessories as per their demands and
expand the functions of the circuit breakers.
03
Features
NO
Designation
1
2
3
4
Auxiliary alarm contact
Under-voltage release
Shunt release
Interface barrier
Residual current protection
5
module
6 Electronic release
7 Thermo-(magnetic) release
8 Terminal shield
Manual operating
9
mechanism
10 Motor mechanism
11 Plug-in base
12 Drawout base
AX(AL)
UVT
SHT
PHS
Ex9ML
SU20
TM(M)
TCV
ERH/RHD
MOD
PIA
DOB
Advanced magnetic field analysisz
For a circuit breaker, the distribution of the magnetic field in its
contact system has a direct impact on its performance, but the
magnetic field is not visible.
Distribution of magnetic field
between contacts
e
L N
i
e
e
e
i
Arc is pushed into
the arc-quenching
chamber due to the
magnet effect.
Moving
contact
Fixed
contact
Magnetic-blow quenching principle
04
The Ex9M is designed by combining the overall simulation
technique with several tests which enables a rational distribution
of the magnetic field and endows a circuit breaker with excellent
performance capabilities:
Ensuring that a strong electrodynamic repulsion force will be
generated as soon as a short-circuit occurs.
Ensuring that the electrical arc can be blown into the arcing
chamber instantly.
Ensuring that there will be sufficient pressure between the
moving contact and the fixed one when the circuit breaker
functions normally and the contact resistance between the two
contacts is sufficiently low.
Features
Optimized dimensions
For easier installation and more space-saving capabilities, the volume of the
Ex9M circuit breaker is designed and manufactured in a compact size and
light weight, while its excellent performance is maintained.
A kind of delicate & compact moulded case circuit breaker - Ex9M1 (125 A)
Size: 140 mm × 90 mm × 79 mm (L × W × H)
Even for higher current levels, Ex9M maintains its advantage of small size.
Additionally, the required mounting space is further reduced effectively due
to its innovative zero flashover design.
Several ways for mounting and the introduction of incoming lines allow for
better mounting by adapting to different installation practices.
LINE
ON
OFF
LOAD
LINE
LINE
ON
ON
ON
OFF
OFF
ON
Zero flashover
Zero flashover
OFF
ON
Zero flashover
OFF
Zero flashover
Mounting direction
LOAD
LOAD
OFF
LOAD
LINE
Power supply from the
top or bottom
Environmentally-friendly
Design/Manufacturing
The Ex9M does not contain any noxious or hazardous substances, and its
manufacturing and processing processes are performed in accordance with
the requirements of the ISO 14001.
Operation
Low temperature rise, low power consumption, and minor influences to the
surrounding environment during operation.
Distribution
Environmentally-protective materials are used in the course of distribution.
Recycling
Over 80% of its component materials can be recycled and reused at the
end of its service life.
05
Features
Standards and Certifications
s
International standards
Product standards
IEC 60947-1 (General provisions)
IEC 60947-2 (Circuit breakers)
IEC 60947-3 (Switches, isolation)
IEC 60947-4-1 (Motor starters)
Extreme environmental test standards
IEC 60068-2-1 (Low temperature)
IEC 60068-2-2 (Dry heat)
IEC 60068-2-11 (Salty mist test)
IEC 60068-2-30 (Moist heat)
Operating Conditions
Temperature
May be used in temperatures from -25oc ~ +70oc.
If the necessary working temperature is below -5oc or above+40oc,
use it according to those specified in the table of temperature
compensation coefficient or please contact us for additional information
Altitude
Normally, the altitude above sea level at its installation site should not
exceed 2,000 m.
If having to install at an altitude above 2,000 m, use it according
to those specified in the table of altitude-derating factors or please
contact us if you have any questions and / or concerns.
Humidity
The following conditions must be met during normal operation:
If the ambient air temperature is +40oc, the atmospheric relative
humiditycan not exceed 50%. If the temperature is lower, use it under
the conditions for a higher degree of humidity.
The monthly mean relative humidity needs to be below 90% in the
dampest month.
The effects of condensation on the product surface impacts its
performance and needs to be taken into consideration.
Every product has been tested by strictly following the requirements
given by IEC60068-2-30
Pollution Level
Level 3
06
thermal-magnetic
IR
Ii
1.0
10
5
9
6
0.9 0.8
xIn
8
TM 250
250A/40℃
7
xIn
Overload protection
Set current value IR=(0.8-0.9-1.0)×In±15%
Short-circuit protection (Ex9M1 not adjustable)
Set current value Ii=(5-6-7-8-9-10)×In±15%
Instantaneous
ti≤50ms
N-pole protection
Ex9M1
M2
■
■
No protection
IR/2protection
—
—
■
■
IRprotection
Protective operating characteristics
No.
Test current
I/In
Conventional
1.05
1
non-releasing
current
Conventional
1.3
2
releasing
current
IR
Ii
Main Functions
Code
Electronic
For protection of
general power distribution
Functions
Models
M4
M5
■
■
■
—
—
—
■
■
■
Release time
Initial state
＞1h(In≤63A)
Cold state
＞2h(In＞63A)
≤1h(In≤63A)
≤2h(In＞63A)
After test 1
Main Functions
SU20S
Basic electronic
distribution protection
SU20SM
Basic electronic motor
protection
SU20C
Advanced electronic
distribution protection
long-time overload protection, short time
short circuit protection, instantaneous
short time protection, neutrol pole
protection for 4P MCCBs only, failure
recording, self-monitoring, current
measurement, bilingual display
protection, short time thort circuit
protection, instantaneous short time
protection, neutrol pole protection for
4P MCCBs only, failure recording, selfmonitoring, current measurement,bilingual
bilingual display
zone interlocking,thermal
memory,frequency measurement,
harmonic measurement
Advanced electronic
motor protection
SU20CM
M3
The LED indicator instructions
“Ready”,
Its stable blink indicates normal working
status.It turns off in case of failure
“Alarm”,
It turns on when the actual current >= 90% IR
It turns off when the actual current <105% IR
“Overload”
It turns on when the actual current >=105% IR
It turns off when the actual current <105% IR
navigation key
Communication port
For motor protection
Noark
LCD
Motor protection
Magnetic
Ii
14
9
13
12
10
11
xIn
Thermal relay + contactor
overload protection + switching
Circuit
breaker short circuit protection
M 250
250A
Set current
value
Instantaneous
For short-circuit protection of
the motor, the set value should
be higher than the starting
current to avoid false releasing
at the start of the motor.
Ｌ
Ｔ（ｓ）
Ｔａ
Ｃｌａｓｓ
Ｉｉ
Ｍ
Short-circuit protection
Ii=(9-10-11-12-13-14)
×In±15%
ti≤50ms
Ｒ　（９－１４）Ｉｎ
ＴＰ
Circuit breaker with magnetic
protection Isolation
Short-circuit protection
Ｉｅ Ｉ １
Ｉａ
Ｉｐ
Contactor
Power on/power off
Overload protection executed
Selective
protection
Cascade
protection
I1
Ia
Ta
M
Tp
M
Relay releasing current, function L
Motor return current curve
Short-time starting peak current
Motor starting duration
Typical motor starting curve
Typical motor starting curve
Selective protection refers to the circuit breaker (D2) closest
to the fault breaks off and the circuit breaker (D1) upstream
doesn’t actuate, ensuring that the circuit breaker (D3) on a
normal branch of the circuit makes and supplies power.
Ｄ１
Ｄ２
Ｉ（Ａ）
Ie Motor rated working current
Ip
Stand-alone thermal relay
Overload protection
For protection of
general power distribution
Protection
LED Indicator
Ｄ３
Selective protection enables the effective limit on the
influence range of a fault.
A cascade connection is the direction application of
the current-limiting capacity of a circuit breaker.
Ｄ１
Ｄ２
The downstream circuit breaker, under protection by
the upstream circuit breaker,may break off the shortcircuit current which is out of its breaking capacity.
Users can select low-cost downstream circuit breakers.
07
Parameter
Ex9M Series Circuit Breaker for Power Distribution Protection
Ex9M1
Ex9M2
2P/3P/4P
125
2P/3P/4P
250
50/60
380/400/415/660/690
16-20-25-32-40-50-63-80-100-125
800
8
S
N
Q
R
H
V
P
36
50
70
85
100 120 150
5
5
5
5
6
6
8
100%
100%
■
A
15000
7000
5000
1000
50/60
380/400/415/660/690
125-160①-180-200-225-250①
800
8
N
Q
R
H
V
50
70
85
100 120
6
6
6
8
8
100%
100%
■
A
15000
7000
5000
1000
For protection of general
power distribution
Number of poles
Rated frame current (A)
Electric performance
Working frequency(Hz)
Rated operational voltage(V)
Rated current (A)
Rated insulation voltage (V)
Rated impulse withstand voltage (kV)
Type of breaking
Ultimate breaking
capacity (kA)
Icu
Service breaking
capacity (% Icu)
Ics
Ue
In +40oc
Ui
Uimp
380/400/415V
660/690/720V
415V
690V
Isolation function
Utilization category
Service life
(C-O cycle)
Actual mean value
Test value
Actual mean value
Test value
Mechanical
Electrical
415V
S
36
6
Protection
Magnetic
Thermomagnetic
Electronic
SU20S Basic type
SU20C Advanced type
Long-time delay
Short-time delay
Instantaneous
Long-time delay
Instantaneous
Long-time delay
Short-time delay
Instantaneous
Residual current protection
Control and indication
—
—
—
—
12×In
(9-10-11-12-13-14)×In
(0.8-0.9-1.0)×In
(0.8-0.9-1.0)×In
10×In
(5-6-7-8-9-10)×In
—
(0.4~1.0)×In
—
(1.5~10)×Ir
—
(1.5~12)×In
RCD1(0.03A-0.1A-0.3A-1A Adjustable;RCD2(0.05A-0.2A-0.5A-2A Adjustable)
Direct (RHD)
Extended(ERH)
Motor mechanism(MOD)
Shunt release
(SHT)
□
□
□
□
□
□
□
□
Under-voltage release
□
□
□
□
□
□
IP40
IP20
Front/Rear
□
—
□
—
ON/OFF position
■
□
62/90/120
140
81.6
0.9
1.2
1.7
IP40
IP20
Front/Rear
□
—
□
—
ON/OFF position
■
□
70/105/140
157
91.5
1.2
1.7
2.2
Control
mode
Manual
(UVT)
Auxiliary contact
(AX)
Alarm contact
(AL)
Connection and installation
All sides
Wiring terminal
Degree of protection
Wiring
Terminal shield (TCV)
Wiring assembly
Plug-in base(PIA)
Draw-out base(DOB)
Front
Rear
Key lock
(KLK)
Phase board
(PHS)
Mechanical interlock(MIT)
a(2*/3/4)
b
c
External dimensions
(mm)
W×H×D
2P
3P
4P
Weight (kg)
Standard
Optional
— No
*only Ex9M1,Ex9M2 have 2P.
Note①:Rated current of electronic MCCB, rated current of electronic Ex9M2 is 250A, 160A, 100A, 63A and 32A.
08
P
150
10
S
36
10
N
50
10
Ex9M3
Ex9M4
Ex9M5
3P/4P
400
3P/4P
630
3P/4P
800
50/60
380/400/415/660/690
250-315-350-400①
800
8
Q
R
H
70
85
100
10
10
12
100%
100%
■
A
10000
4000
2000
1000
50/60
380/400/415/660/690
400-500-630①
800
8
N
Q
R
H
V
50
70
85 100 120
10
10
10
12
12
100%
100%
■
A
10000
4000
2000
1000
50/60
380/400/415/660/690
630-700-800①
800
8
N
Q
R
H
V
50
70
85 100 120
10
10
10
12
12
100%
100%
■
A
5000
2500
1000
500
V
120
12
P
150
15
—
—
(9-10-11-12-13-14)×In
(0.8-0.9-1.0)×In
(5-6-7-8-9-10)×In
(0.4~1.0)×In
(1.5~10)×Ir
(1.5~12)×In
S
36
10
P
150
15
S
36
10
RCD3(0.05A-0.2A-0.5A-1A Adjustable;RCD4(0.1A-0.3A-1A-2A Adjustable)
—
—
(9-10-11-12-13-14)×In
(0.8-0.9-1.0)×In
(5-6-7-8-9-10)×In
(0.4~1.0)×In
(1.5~10)×Ir
(1.5~12)×In
—
—
—
(9-10-11-12-13-14)×In
(0.8-0.9-1.0)×In
(5-6-7-8-9-10)×In
(0.4~1.0)×In
(1.5~10)×Ir
(1.5~12)×In
—
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
IP40
IP20
Front/Rear
□
□
□
—
ON/OFF position
■
□
140/185
255
118.5
—
5.0
6.6
IP40
IP20
Front/Rear
—
□
□
—
ON/OFF position
■
□
195/260
300
142
—
10.2
13.5
IP40
IP20
Front/Rear
—
□
□
—
ON/OFF position
■
□
195/260
300
142
—
10.2
13.5
P
150
15
09
Parameter
Ex9M1M
Ex9M2M
2P/3P/4P
125
2P/3P/4P
250
50/60
380/400/415/660/690
16-20-25-32-40-50-63-80-100-125
800
8
N
Q
R
H
V
Ex9M Series Circuit Breaker for motor protection
For motor protection
Number of poles
Rated frame current (A)
Electric performance
Working frequency(Hz)
Rated operational voltage (V)
Ue
Rated current (A)
In
Rated insulation voltage (V)
Ui
Rated impulse withstand voltage (kV) Uimp
Type of breaking
Ultimate breaking
capacity (kA)
Icu
Service breaking
capacity (% Icu) Ics
P
S
50/60
380/400/415/660/690
125-160①-180-200-225-250①
800
8
N
Q
R
H
V
380/400/415V
36
50
70
85
100
120
150
36
50
70
85
100
120
150
660/690/720V
415V
690V
5
5
5
5
100%
100%
■
A
15000
7000
5000
1000
6
6
8
6
6
6
6
100%
100%
■
A
15000
7000
5000
1000
8
8
10
S
Isolation function
Utilization category
Service life
(C-O cycle)
Actual mean value
Test value
Actual mean value
Test value
Mechanical
Electrical
Protection
Long-time delay
Short-time delay
Instantaneous
Long-time delay
Instantaneous
Magnetic
Electronic
SU20S Basic type
SU20C advanced type
Residual current protection
Control and indication
Control
mode
Direct(RHD)
Extended(ERH)
Manual
Motor mechanism(MOD)
Shunt release(SHT)
Under-voltage release(UVT)
Auxiliary contact(AX)
Alarm contact(AL)
Connection and installation
All sides
Degree of protection
Wiring terminal
Wiring assembly
Wiring
Plug-in base(PIA)
Draw-out base(DOB)
Front
Terminal shield(TCV)
Rear
Handle lock(KLK)
Phase board(PHS)
Mechanical interlock(MIT)
a(2*/3/4)
b
c
External dimensions
(mm)
W×H×D
Weight (kg)
Fixed before connection
■ Yes
10
□ Optional
2P
3P
4P
— NO
*
—
—
—
—
12×In
(9-10-11-12-13-14)×In
—
—
—
(1.5~14)×In
RCD1(0.03A-0.1A-0.3A-1A Adjustable;RCD2(0.05A-0.2A-0.5A-2A Adjustable)
□
□
□
□
□
□
□
□
□
□
□
□
□
□
IP40
IP20
Front/Rear
□
—
□
—
ON/OFF position
■
□
62/90/120
140
81.6
0.9
1.2
1.7
IP40
IP20
Front/Rear
□
—
□
—
ON/OFF position
■
□
70/105/140
157
91.5
1.2
1.7
2.2
only Ex9M1,Ex9M2 have 2P.
Note①:Rated current of electronic MCCB, rated current of electronic Ex9M2 is 250A, 160A, 100A, 63A and 32A.
P
Ex9M3M
Ex9M4M
Ex9M5M
3P/4P
400
3P/4P
630
3P/4P
800
S
N
50/60
380/400/415/660/690
250-315-350-400①
800
8
Q
R
H
V
P
S
50/60
380/400/415/660/690
400-500-630①
800
8
N
Q
R
H
V
36
50
70
85
100
120
150
36
50
70
10
10
10
10
100%
50%
■
A
10000
4000
2000
1000
12
12
15
10
10
10
—
—
(9-10-11-12-13-14)×In
—
(1.5~14)×In
P
S
50/60
380/400/415/660/690
630-700-800①
800
8
N
Q
R
H
V
100
120
150
36
50
70
85
100
120
150
10
12
100%
100%
■
A
10000
4000
2000
1000
12
15
10
10
10
10
100%
100%
■
A
5000
2500
1000
500
12
12
15
85
RCD3(0.05A-0.2A-0.5A-1A Adjustable;RCD4(0.1A-0.3A-1A-2A Adjustable)
—
—
(9-10-11-12-13-14)×In
—
(1.5~14)×In
—
—
—
(9-10-11-12-13-14)×In
—
(1.5~14)×In
—
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
IP40
IP20
Front/Rear
□
□
□
—
ON/OFF position
■
□
140/185
255
118.5
—
5.0
6.6
IP40
IP20
Front/Rear
—
□
□
—
ON/OFF position
■
□
195/260
300
142
—
10.2
13.5
IP40
IP20
Front/Rear
—
□
□
—
ON/OFF position
■
□
195/260
300
142
—
10.2
13.5
P
11
Parameter
Ex9M Series Switch Disconnector
Ex9M1SD
Ex9M2SD
2P/3P/4P
2P/3P/4P
125
250
50/60
380/400/415/660/690
500/750/1000
125
125
1000
8
1800
1800
700
■
AC22A/AC23A
DC22A/DC23A
15000
7000
5000
1000
50/60
380/400/415/660/690
500/750/1000
250
250
1000
8
3200
3200
1350
■
AC22A/AC23A
DC22A/DC23A
15000
7000
5000
1000
□
□
□
□
□
□
□
□
□
□
□
□
□
□
IP40
IP20
Front/Rear
□
—
□
—
ON/OFF position
■
□
62/90/120
140
81.6
0.6
1.0
1.5
IP40
IP20
Front/Rear
□
—
□
—
ON/OFF position
■
□
70/105/140
157
91.5
1.1
1.5
2.0
Switch disconnector
Number of poles
Rated frame current (A)
Electric performance
Working frequency(Hz)
f
AC
DC
AC
DC
Rated operational voltage (V)Ue
Rated working current(A)
In
Rated insulation voltage(V)
Rated impulse withstand voltage
Rated shorttime
withstand current
(A)
Ui
Uimp
1s
3s
20s
(A)
Isolation function
AC
DC
Actual mean value
Test value
Actual mean value
Test value
Load type
Service life
(C-O)
Mechanical
Electrical
Control and indication
Control
mode
Direct(RHD)
Extended(ERH)
Manual
Motor mechanism(MOD)
Shunt release(SHT)
Under-voltage release(UVT)
Auxiliary contact(AX)
Alarm contact(AL)
Connection and installation
All sides
Degree of protection
Wiring terminal
Wiring assembly
Wiring
Plug-in base(PIA)
Draw-out base(DOB)
Front
Terminal shield(TCV)
Rear
Handle lock(KLK)
Phase board(PHS)
Mechanical interlock(MIT)
a(2*/3/4)
b
c
External dimensions
(mm)
W×H×D
Weight (Kg)
(Fixed before connection)
■ Yes
12
□Optional — No
2P
3P
4P
Ex9M1SD, Ex9M2SD have 2 P; 500V for 2 poles in series connection, 750V for 3 poles in series connection,
* Only
1000V for 4 poles in series connection
Ex9M3SD
Ex9M4SD
Ex9M5SD
3P/4P
3P/4P
3P/4P
400
630
800
50/60
380/400/415/660/690
750/1000
400
400
1000
8
5000
5000
2400
■
AC22A/AC23A
DC22A/DC23A
10000
4000
2000
1000
50/60
380/400/415/660/690
750/1000
630
630
1000
8
8000
8000
3000
■
AC22A/AC23A
DC22A/DC23A
5000
4000
2000
1000
50/60
380/400/415/660/690
750/1000
800
800
1000
8
10000
10000
3800
■
AC22A/AC23A
DC22A/DC23A
5000
2500
2000
500
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
IP40
IP20
Front/Rear
□
□
□
—
ON/OFF position
■
□
140/185
255
118.5
—
4.5
6.0
IP40
IP20
Front/Rear
—
□
□
—
ON/OFF position
■
□
195/260
300
142
—
9.5
12.7
IP40
IP20
Front/Rear
—
□
□
—
ON/OFF position
■
□
195/260
300
142
—
9.5
12.7
13
Parameter
Ex9MD Series DC Circuit Breaker
Ex9MD1
Ex9MD2
For PV system
Number of poles
2P/3P/4P
2P/3P/4P
Rated frame current (A)
125
250
Electric performance
Rated working voltage (V)
Ue
500/750/1000
500/750/1000
Rated current (A)
In
16-20-25-32-40-50-63-80-100-125
125-160-180-200-225-250
Rated insulation voltage (V)
Ui
1000
1000
Rated impulse withstand voltage (kV) Uimp
8
8
Type of breaking
B
S
N
Q
R
H
B
S
N
Q
R
Ultimate breaking capacity (kA)
Icu 1000V DC
25
36
50
70
85
100
25
36
50
70
85
Service breaking capacity (% Icu)
Ics
100%
100%
■
■
Isolation function
Utilization category
A
A
Actual mean value
15000
15000
Mechanical
Test value
7000
7000
Service life
(C-O cycle)
Actual mean value
5000
5000
Electrical
Test value
1000
1000
Protection
Long-time delay
(0.8-0.9-1.0)×In
(0.8-0.9-1.0)×In
Short-time delay
—
—
Thermomagnetic
Instantaneous
10×In
(5-6-7-8-9-10)×In
Control and indication
□
□
Direct(RHD)
Manual
Control
□
□
Extended(ERH)
mode
□
□
Motor mechanism(MOD)
□
□
Shunt release(SHT)
□
□
Under-voltage release(UVT)
□
□
Auxiliary contact(AX)
□
□
Alarm contact(AL)
Connection and installation
All sides
IP40
IP40
Degree of protection
Wiring terminal
IP20
IP20
Wiring assembly
Front/rear
Front/rear
□
□
Wiring
Plug-in base(PIA)
—
—
Draw-out base(DOB)
■
■
Shorted row(DCB)
Handle lock(KLK)
ON/OFF position
ON/OFF position
■
■
Phase board(PHS)
□
□
Mechanical interlock(MIT)
ａ
ｃ
a(2*/3/4)
62/90/120
70/105/140
External dimensions
(mm)
b
140
157
ｂ
W×H×D
c
81.6
91.5
2P
0.9
1.2
Weight (kg)
3P
1.2
1.7
(Fixed before connection)
4P
1.7
2.2
Only Ex9MD1 Ex9MD2 have 2 P; 500V for 2 poles in series connection, 750V for 3 poles in series
□Optional
■YES
— NO
*connection, 1000V for 4 poles in series connection
14
H
100
B
25
S
36
Ex9MD3
Ex9MD4
Ex9MD5
3P/4P
400
3P/4P
630
3P/4P
800
750/1000
250-315-350-400
1000
8
N
Q
50
70
100%
■
A
10000
4000
2000
1000
750/1000
400-500-630
1000
8
N
Q
50
70
100%
■
A
10000
4000
2000
1000
750/1000
630-700-800
1000
8
N
Q
50
70
100%
■
A
5000
2500
1000
500
R
85
H
100
B
25
S
36
R
85
H
100
B
25
S
36
(0.8-0.9-1.0)×In
—
(5-6-7-8-9-10)×In
(0.8-0.9-1.0)×In
—
(5-6-7-8-9-10)×In
(0.8-0.9-1.0)×In
—
(5-6-7-8-9-10)×In
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
□
IP40
IP20
Front/rear
□
□
■
ON/OFF position
■
□
140/185
255
118.5
—
5.0
6.6
IP40
IP20
Front/rear
—
□
■
ON/OFF position
■
□
195/260
300
142
—
10.2
13.5
IP40
IP20
Front/rear
—
□
■
ON/OFFposition
■
□
195/260
300
142
—
10.2
13.5
R
85
H
100
15
Accessories
Ex9ML Residual Current Protection Module
Standards
IEC/EN 60947-2, Annex B;
IEC60255-4 and IEC1-2~5,protection of over-voltage, lightning, electrostatic
discharge and RFI interference
POWER
0.05
0.2 0.5
2
I n(A)
Power indicator
Setting of Residual
current
Models
Residual Current
Time setting
Ex9ML1
0.03-0.1-0.3-1(A)
0.05-0.2-0.5-2(A)
Delayed
0.1-0.3-0.5-1(s)
Ex9ML2
0.03-0.1-0.3-1(A)
Ex9ML3
0.05-0.2-0.5-1(A)
0.1-0.2-1-3(A)
maximum non-acting
time△t(s):0/0.06/0.2/0.5(s)
t(s):0/0.06/0.2/0.5
0.3 0.5
0.1
1
t(s)
Time setting
of delayed trip
Note:Instantaneous trip under condition of
residual current is set on 0.03A,0.1s.
Accessory
Alarm Contact (AL) Alarm Contact (AL) can be used together to make additional
functions, which are either alarming without trip or alarming
with trip.
Note: This accessory shall be assembled by Noark
16
Accessories
Internal Accessories
1
2
1
3
4
1
3
Auxiliary contact(AX)
Shunt release(SHT)
【Function】
【Function】
Indication for the status of a circuit
breaker (e.g. opening,closing)
【Type】
To control releasing of a circuit
breaker remotely
【Type of power supply】
AC 400V
AC 230V
AC 110V
AC 48V
1NO, 1NC
2
DC 220V
DC 110V
DC 48V
DC 24V
4
Alarm contact(AL)
Under-voltage release (UVT)
【Function】
【Function】
To send an alarm signal when
the circuit breaker is released
【Type】
1 NO, 1 NC
Under-voltage protection
【Type of power supply】
AC 400V
AC 230V
17
Accessories
External Accessories
Direct rotary handle (DRH)
Degree of protection : IP40,IK07
【The following functions can be ensured if a direct rotary handle is attached】
Reliable insulation
Suitable for isolation function
Free-releasing of a circuit breaker
Indicator for three positions: ON/OFF/TRIP
Not affecting the operations of release and “Release” test button by users
【Padlock】
The users may mount the padlock in the ON or OFF position
(additional, diameter 5 - 8 mm)
The number of padlocks for each position is 1 - 3
A handle lock is used to lock the circuit breaker in the ON or OFF position
Extended rotary handle (ERH)
Degree of protection: IP56, IK08
【If extended rotary handle mounted, operation of the circuit beakers could be
realised outside the panel and the following function also could be realised】
Reliable insulation
Suitable for isolation function
Free-releasing of a circuit breaker
Indicator for three positions: ON/OFF/TRIP
When opening the door of the switch cabinet, tamper with the release and “Release”
test button by users, ensuring that the circuit breaker does not turn on unnecessarily.
【LOCK】
The users may mount the padlock in the ON or OFF position (provided by
themselves, diameter 5 - 8 mm)
The number of padlocks for each position is 1 - 3
The attachment of a padlock will prevent the cabinet door from being opened
A handle lock is used to lock the circuit breaker in the ON or OFF position
18
Accessories
Motor mechanism(MOD)
Degree of protection: IP40
【Functions】
Control the opening and closing of the circuit breaker through the button
Accumulation of energy by the motor or the manual operating handle.
With energy storage, opening & closing, and operational time indicators.
Interface barrier (PHS)
To improve the safety & insulation performance at the connection.
Mechanical interlock (MIT)
Used on a dual-circuit power system, ensuring the circuit breakers on both circuits will not
close at the same time.
Front installation.
19
Selection
Ex9M Moulded Case Circuit Breaker
Ex9M
1
S
TM
AC
125
3P
Product Code
Rated Frame
Current Code
Breaking Capacity
Code
Tripping
device code
AC/DC Code
Rated Current
(A)
Poles
Ex9M:AC
Protection
1:125A
B:25kA
(DC)
125, 100, 80,
63, 50, 40, 32,
25, 20, 16
2P
Ex9MD:DC
Protection
2:250A
S:36kA
250, 225,
200, 180,
160, 125
3P
3:400A
N:50kA
400,350,
315,250
4P4T:
Neutral protected,
on-and -off
4:630A
Q:70kA
630,500,400
5:800A
R:85kA
800,700,630
TM:
Thermomagnetic
, for protection
of general power
distribution
AC: Alternating
current
DC:Direct
current
M:
Magnetic type, for
motor protection
H:100kA
V:120kA
P:150kA
(AC)
Example:
“Ex9M1 S TM DC 125 3P”: means AC Moulded Case Circuit Breaker of the Ex9M series, frame current 125A,
breaking capacity 36kA, 3 poles, rated current 125A with thermal-magnetic distribution protection trip unit.
Note ①:2P only for Ex9M1, Ex9M2, Ex9MD1, Ex9MD2
2 :Special Product – Please contact NOARK before placing an order
①
20
4P4I:
Neutral protected,
without on-and -off
①
2
①
2
①
4P4U:
Neutral unprotected,
on-and -off
2
①
4P4N:
Neutral unprotected,
without on-and -off
2
①
Selection
Ex9M Moulded Case Circuit Breaker(Electronic type)
Ex9M
2
S
SU20S
AC
250
3P
Product Code
Rated Frame
Current Code
Breaking Capacity
Code
Tripping
device code
AC/DC Code
Rated Current
(A)
Poles
Ex9M:
AC Protection
2:250A
S:36kA
250,160,100,
63,32
3P
3:400A
N:50kA
4:630A
Q:70kA
5:800A
R:85kA
SU20S:
AC: alternating
Basic electronic
distribution protection
current
SU20C:
Advanced electronic
distribution protection
①
SU20SM:
630
Basic electronic
motor protection
SU20CM:
Advanced electronic
motor protection
400
①
800
H:100kA
4P4T:
Neutral protected,
on-and -off
4P4I:
Neutral protected,
without on-and -off
①
①
4P4U:
Neutral unprotected,
on-and -off
①
4P4N:
Neutral unprotected,
without on-and -off
①
V:120kA
P:150kA
Example:
Ex9M2S SU20S AC250 3P:Ex9M series MCCB, frame current 250A, breaking capacity 36kA, 3 poles, rated current 250A,
with basic electronic distributon proctection trip unit
Notes:COM21 communication module is needed to realize the communication between the Ex9M electronic circuit
breaker and the upper computer, which could also realize the remote signal, remote adjustment and measurement.
MOD motor mechanism is needed to realize the function of remote control.
21
Selection
Ex9MSD Switch disconnector
Ex9M
1
SD
AC
3P
Product Code
Rated Frame
Current Code
Breaking
Capacity
AC/DC Code
Poles
1:125A
SD:
Switch
disconnector
2:250A
3:400A
AC:
alternating current
DC:
direct current
2P
3P
4P
4:630A
5:800A
Example:
Ex9M1SD DC 3P:means an Ex9MSD Switch disconnector,frame current 125A,DC,3 poles.
22
Selection
Ex9ML Residual Current Protection Module
Ex9ML
1
AC
125
3P
A
RCD1
Product Code
Rated Frame
Current Code
AC/DC Code
Rated Current
(A)
Poles
Residual Current
Type Code
Rated Residual
Operating Product
Code Current Code
Ex9ML: Residual
Current Protection
Module
1:125A
125,100,80,63,
50,40,32,25,20,
16
3P
None:
AC type
RCD1: 0.03A-0.1A-0.3A-1A
(Only to 9ML1, 9ML2)
2:250A
250,225,200,
180,160,125
4P
A: A type
RCD2:0.05A-0.2A-0.5A-2A
(Only to 9ML1, 9ML2)
3:400A
400,350,
315,250
AC: alternating
current
RCD3:0.05A-0.2A-0.5A-1A
(Only to 9ML3)
RCD4:0.1A-0.3A-1A-2A
(Only to 9ML3)
Example:
Ex9ML1 AC125 3P RCD1 stands for Ex9ML series AC Residual Current Protection Module, frame current 125A,3
poles,rated current 125A,and four adjustable grades of rated residual operating current: 0.05A-0.2A-0.5A-2A.
Notes：The series standard delay time: four adjustable grades: 0.1S-0.3S-0.5S-1S.
ELCB:
For any order including Moulded Case Circuit Breaker and Residual Current Protection Module, it is approved to
abbreviated two SKU codes as one SKU code.
E.g.: The SKU codes of a Ex9M1 moulded case circuit breaker, 125A, 36KA, 3 poles, with thermal
release, with leakage protection of four adjusted grades: 0.03A-0.1A-0.3A-1A are:Ex9M1 S TM AC 125 3P and
Ex9ML1 AC125 3P RCD1,can be abbreviated as Ex9M1 S TM AC125 3P RCD1.
23
Selection
Ex9M Series Products Accessories
voltage
AC24V、AC48V
AC110VA、C220V
AC230V、AC240V
AC380V、AC400V
AC415V、AC660V
AC690V、AC24V
DC48V、DC110V
DC120V、DC220V
SHT
22
Accessories code
Rated Frame
Current Code
Details refer to the
following list
Details as per attached
list
AC110V
3P
OTHER
Voltage
Poles
None for no working
voltage
None
Special request
code
3P
4P
None
Special request code
Selection example：
SHT 22 AC110V:shunt release for 9M2, with control voltage of AC110V
RHD 23:direct rotary handle for 9M3
Accessories
24
Name
Specification
Auxiliary contact
Alarm contact
Shunt release
Under-voltage release
Direct rotary handle
Extended rotary handle
Motor mechanism
Handle lock
Mechanical interlock
Terminal shield
Extended terminal
shield
Rear connection plate
Draw-out base
Plug-in base
Din-rail adaptor
AX
AL
SHT
UVT
RHD
ERH
MOD
KLK
MIT
TCV
9M1
9M2
9M3
9M4
9M5
SHT21
UVT21
RHD21
ERH21
MOD21
KLK21
MIT21
TCV21
SHT21
ERH22
MOD22
KLK22
MIT22
TCV22
RHD23
ERH23
MOD23
KLK23
MIT23
TCV23
RHD24
ERH24
MOD24
KLK24
MIT24
TCV24
TCE
TCE21
TCE22
TCE23
TCE24
RCP
DOB
PIA
DRA
RCP21
—
PIA21
DRA21
RCP22
—
PIA22
DRA22
RCP23
DOB23
PIA23
—
Front panel escutcheon
CDP
CDP21
CDP22
CDP23
Communication module
Battery module
■YES
□ Optional
COM
BAB
— NO
AX21
AL21
SHT22
UVT22
RCP24
DOB24
—
—
COM21(Used for 9M electronic type)
BAB21(Used for 9M electronic type)
RCP25
DOB25
—
—
CDP24
25