Prices as of October 21, 2015. Check Web site for most current prices.
Adjustable Overloads for
GH15 Series Contactors
Company
Information
Drives
Soft Starters
Motors
The RTD series adjustable motor overload relays are designed for use with the GH15 Series 45 mm, 60 mm, 79 mm,
110 mm, and 145 mm contactors.
Power
Transmission
Motion: Servos
and Steppers
By combining the contactor with an overload relay, you have a
reliable motor starter solution.
Motor Controls
Sensors:
Proximity
RTD32 overload relays
for 45 mm contactors
Sensors:
Photoelectric
RTD65 overload relays
for 60 mm contactors
Sensors:
Encoders
• 16 sizes for motor currents
from 0.4 to 32 amps
•F
our sizes for motor currents
from 20 to 65 amps
• Units come with (1) N.O.
and (1) N.C. auxiliary
contacts
•U
nits come with (1) N.O.
and (1) N.C.
auxiliary contacts
• Mount directly to 45 mm
contactors
•M
ount directly to 60 mm
contactors
Sensors:
Pressure
• Class 10A trip class
•C
lass 10A trip class
• cULus listed, CE
• c ULus listed, CE
Sensors:
Temperature
Sensors:
Limit Switches
Sensors:
Current
Sensors:
Level
Sensors:
Flow
RTD180 overload relays
for 79 mm and 110 mm
contactors
• 3 sizes for motor currents
from 60 to 180 amps
• Units come with (1) N.O.
and (1) N.C. auxiliary
contacts
• Mount directly to 110 mm
contactors with connection
links (included)
•Hard-wire connection to
79 mm contactors (No
connection links available)
RTD320 overload relays
for 145 mm contactors
Pushbuttons
and Lights
• 2 sizes for motor currents
from 144 to 320 amps
Stacklights
Signal
Devices
• Units come with (1) N.O.
and (1) N.C. auxiliary
contacts
Process
Relays and
Timers
• Mount directly to 145 mm
contactors with connection
links (included)
Pneumatics:
Air Prep
• Class 10A trip class
Pneumatics:
Directional Control
Valves
• cULus listed, CE
Pneumatics:
Cylinders
• Class 10A trip class
• cULus listed, CE
Pneumatics:
Tubing
Pneumatics:
Air Fittings
Appendix
Book 2
Terms and
Conditions
Book 2 (14.3)
w w w. a u t o m a t i o n d i r e c t . c o m / m o t o r- c o n t r o l s
Motor Controls
eMS-99
Prices as of October 21, 2015. Check Web site for most current prices.
GH15 Series Adjustable Overload Relay
Features
RTD32
for 45 mm Contactors
Adjustable
current
range
RTD180 for 79 mm and
110 mm Contactors
Tamperresistant cover
Equipment
Designation
Label
Adjustable
Test function current
range
Manual
Stop
button
Manual /
Auto reset
Auxiliary
contacts
Test
Function
Manual
Stop
Button
Manual/
Auto
Reset
IP20 finger protection
IP20 finger
protection
Note: Scale is 1:1 on dial.
Secure mounting
to 45mm
contactors
Auxiliary
contacts
Note: The secondary current for the dial adjustment of the relay
is 100x the dial current. For example, for a rated load
current of 120A, the relay setting should be 1.2A.
RTD320
for 145 mm Contactors
RTD65
for 60 mm Contactors Manual
reset
Equipment
Designation
Label
Adjustable
current
range
Manual/Auto
Reset
Test
Function
Manual
Stop
Button
IP20 finger protection
IP20 finger protection
Adjustable
current
range
Auxiliary
contacts
Auxiliary
contacts
Note: Scale is 1:1 on dial.
Note: Additional Black Loadside Terminal Block is
available on RTD65-5200 and RTD65-6500 only.
Note: The secondary current for the dial adjustment
of the relay is 80x the dial current. For example, for a rated load current of 216A, the relay
setting should be 2.7A.
Book 2 (14.3)
eMS-100
Motor Controls
1 - 8 0 0 - 633 - 0 4 0 5
Prices as of October 21, 2015. Check Web site for most current prices.
GH15 Series Overload Relay Selection Guide
Company
Information
Drives
Step 1 Determine the motor FLA and service factor listed on the motor name plate.
Next, calculate the size overload protection required based on 2005 NEC
430.32. Select your motor’s FLA (Full Load Amperage) from Column A. Tripping
current occurs at 125% of FLA in column A.
Soft Starters
Step 2 Follow across to Column B to find your contactor size. Check the maximum amperage
rating for that contactor. Ranges overlap and you may have to go to the next larger size.
Motion: Servos
and Steppers
Step 3 After selecting your contactor, follow across to Column C to find your overload relay
model number.
Step 4 Order the contactor and overload relay, any desired auxiliary contacts, then assemble and
install your motor starter.
B
C
Current Range Motor FLA
Contactor Model
Overload Relay
RTD32-60
RTD32-90
RTD32-120
RTD32-180
RTD32-270
RTD32-400
RTD32-600
RTD32-900
RTD32-1100
RTD32-1400
RTD32-1400
RTD32-1800
RTD32-1800
RTD32-2400
RTD32-3200
RTD32-3200
RTD65-2800
RTD65-4200
RTD65-4200
RTD65-5200
RTD65-5200
RTD65-6500
RTD180-9000
RTD180-9000
RTD180-12000
RTD180-18000
RTD180-18000
RTD320-21600
RTD320-21600
RTD320-32000
RTD320-21600
RTD320-32000
0.4 to 0.6A
0.6 to 0.9A
0.8 to 1.2A
1.2 to 1.8A
1.8 to 2.7A
GH15BN up to maximum FLA of 9A
2.7 to 4.0A
4.0 to 6.0A
6.0 to 9.0A
8.0 to 11.0A
10.0 to 14.0A
10.0 to 14.0A
13.0 to 18.0A
GH15CN up to 12A FLA
GH15DN up to 16A FLA
13.0 to 18.0A
17.0 to 24.0A
GH15ET up to 25A FLA
22.0 to 32.0A
22.0 to 32.0A
20.0 to 28.0A
28.0 to 42.0A
28.0 to 42.0A
40.0 to 52.0A
40.0 to 52.0A
52.0 to 65.0A
GH15FT up to 32A FLA
GH15GT up to 40A FLA
GH15HT up to 50A FLA
GH15JT up to 63A FLA
60.0 to 90.0A
GH15KT up to 80A FLA
60.0 to 90.0A
GH15LT up to 95A FLA
80.0 to 120.0A
GH15MT up to 110A FLA
120.0 to 180.0A
GH15NT up to 150A FLA
120.0 to 180.0A
GH15PT up to 175A FLA
144.0 to 216.0A
GH15RT up to 210A FLA
144.0 to 216.0A
216.0 to 320.0A
144.0 to 216.0A
216.0 to 320.0A
GH15ST up to 260A FLA
GH15TT up to 315A FLA
Price
IEC Contactor
Frame Size
$62.25
$62.25
$62.25
$62.25
Sensors:
Photoelectric
Sensors:
Limit Switches
Sensors:
Current
Sensors:
Level
$62.25
45 mm
$67.25
Sensors:
Flow
$67.25
Pushbuttons
and Lights
$67.25
Stacklights
$67.25
Signal
Devices
$67.25
$79.50
Process
$79.50
$116.25
Relays and
Timers
$116.25
$116.25
$144.75
60 mm
$144.75
$203.00
$203.00
79 mm
$257.25
$277.50
$277.50
110 mm
Pneumatics:
Cylinders
Pneumatics:
Tubing
Pneumatics:
Air Fittings
$321.25
$321.25
$321.25
Pneumatics:
Air Prep
Pneumatics:
Directional Control
Valves
$144.75
145 mm
$321.25
Motor Controls
Appendix
Book 2
Terms and
Conditions
$321.25
Book 2 (14.3)
w w w. a u t o m a t i o n d i r e c t . c o m / m o t o r- c o n t r o l s
Sensors:
Proximity
Sensors:
Temperature
$62.25
$62.25
Motor Controls
Sensors:
Pressure
$62.25
$62.25
Power
Transmission
Sensors:
Encoders
Motor Contactor and Overload Relay Selection Guide (When Motor FLA is Known)
A
Motors
eMS-101
Prices as of October 21, 2015. Check Web site for most current prices.
GH15 Series Contactors Overload
Technical Characteristics
Typical Trip Curves
Approximate Trip Time
45 and 60 mm
Overloads
min
120
90
s
7200
5400
60
3600
30
20
15
10
1800
1200
900
600
5
4
3
2
300
240
180
120
90
60
40
1
20
1
1,05 1
1,2
10
8
6
4
3
1,5
2
3
4
5 6 7 8 10 x Ir
Multiples of Full Load Current
Approximate Trip Time
79 mm, 110 mm,
and 145 mm Overloads
min
120
90
s
7200
5400
60
3600
30
20
15
10
1800
1200
900
600
5
4
3
2
300
240
180
120
90
60
40
1
Note: Curves show tripping time
(average value) versus multiples of setting current Ir.
Tripping starting from cold
Tripping starting from hot
20
10
8
6
4
3
2
1,05 1
1,2
1
1,5
2
3
4
5 6 7 8 10 x Ir
Multiples of Full Load Current
Book 2 (14.3)
eMS-102
Motor Controls
1 - 8 0 0 - 633 - 0 4 0 5
Prices as of October 21, 2015. Check Web site for most current prices.
GH15 Series Contactors Overload
Technical Characteristics
Company
Information
Drives
Soft Starters
Motors
Thermal Overload Relays Specifications
RTD32
Storage temperature
Operating temperature
Tripping class IEC 60947-4-1
Phase loss sensitive
Connection to contactor
Frequency limits
RTD65
RTD180
RTD180-18000
Power
Transmission
RTD320
-40 to +70°C (-40°F to 158°F)
Motion: Servos
and Steppers
-25 to +55°C (-13°F to 131°F)
10A
Motor Controls
Yes
Built-in links
Pass through wire
0-400 Hz
3.7 Watts (52-65 A)
2.3 Watts
setting range: 4.5 W
Power dissipation per phase
Short circuit current rating 600V
Aux contacts wire range
Aux contacts tightening torque
Links for direct
Sensors:
Proximity
Links for direct
50-60 Hz
3 Watts
Sensors:
Photoelectric
5 Watts
Sensors:
Encoders
5kA rms
14-10 AWG
Sensors:
Limit Switches
8.1 lb-in
Sensors:
Current
Overload Aux Contact Ratings
Contact
Rating Code
Designation
Thermal
Continuous
Current (Amps)
120 Volt
Make / Break
Maximum Current (Amps)
240 Volt
480 Volt
Make / Break
Make / Break
Sensors:
Pressure
600 Volt
Make / Break
95-96 (NC) B600
5
30 / 3
15 / 1.5
7.5 / 0.75
6 / 0.6
97-98 (NO) C600
2.5
15 / 1.5
7.5 / 0.75
3.75 / 0.375
3 / 0.3
Sensors:
Temperature
Sensors:
Level
Sensors:
Flow
Pushbuttons
and Lights
IEC terminal designations
Stacklights
Wiring Diagrams
Signal
Devices
RTD32 / RTD65
Process
Relays and
Timers
RTD32
Pneumatics:
Air Prep
(Manual - Auto Reset)
Pneumatics:
Directional Control
Valves
RTD180 / RTD320
Pneumatics:
Cylinders
Pneumatics:
Tubing
RTD65
Pneumatics:
Air Fittings
(Manual - Auto Reset)
Appendix
Book 2
Terms and
Conditions
Book 2 (14.3)
w w w. a u t o m a t i o n d i r e c t . c o m / m o t o r- c o n t r o l s
Motor Controls
eMS-103
Prices as of October 21, 2015. Check Web site for most current prices.
GH15 Series Overload Relay Dimensions
45 mm contactor and overload dimensions
GH15BN, -CN, -DN, -ET, -FT + RTD32
Overload Dimensions mm [inches]
Width
Height
Contactor
Overload
Model
Model
A
B
B1
B2
GH15BN
GH15CN
45.0
146.0
–
–
GH15DN
RTD32
[1.77]
[5.75]
GH15ET
GH15FT
GH15GT
68.5
169.0
–
–
GH15HT
RTD65
[2.70]
[6.65]
GH15JT
GH15KT
contactor and
137.0
81.0
overloads do
[5.39]
[3.19]
GH15LT
RTD180
not have a link
128.0
connector 162.0 [6.38] 81.0 [3.19]
GH15MT
[5.04]
GH15NT
290.0
–
–
RTD180-18000
[11.42]
GH15PT
GH15RT
145.0
361.0
–
GH15ST
RTD320
[5.71]
[14.21]
GH15TT
Depth
C
D
E
E1
F
G
H
I
85.0
[3.35]
35.0
[1.38]
60.0
[2.36]
7.5
[0.30]
–
–
–
–
109.0
[4.29]
50.0
[1.97]
100.0
[3.94]
–
–
–
–
–
130.0
[5.12]
70.0
[2.76]
100.0
[3.94]
–
–
68.0
[2.68]
40.0
[1.57]
–
145.0
[5.71]
100.0
[3.94]
130.0
[5.12]
–
42.5
[1.67]
68.0
[2.68]
40.0
[1.57]
–
208.0
[8.19]
120.0
[4.72]
160.0
[6.30]
–
80.0
[3.15]
68.0
[2.68]
40.0
[1.57]
96.0
[3.78]
Book 2 (14.3)
eMS-104
Motor Controls
1 - 8 0 0 - 633 - 0 4 0 5
Prices as of October 21, 2015. Check Web site for most current prices.
GH15 Series Overload Relay Dimensions
Company
Information
Drives
Soft Starters
60 mm contactor and overload dimensions
Motors
Power
Transmission
Motion: Servos
and Steppers
Motor Controls
Sensors:
Proximity
Sensors:
Photoelectric
Sensors:
Encoders
Sensors:
Limit Switches
Sensors:
Current
GH15GT, -HT, -JT + RTD65
Sensors:
Pressure
Sensors:
Temperature
Sensors:
Level
Sensors:
Flow
79 mm contactor and overload dimensions
Pushbuttons
and Lights
Stacklights
Signal
Devices
Process
Relays and
Timers
Pneumatics:
Air Prep
Pneumatics:
Directional Control
Valves
Pneumatics:
Cylinders
Pneumatics:
Tubing
Pneumatics:
Air Fittings
Appendix
Book 2
GH15KT, -LT, -MT + RTD180
Terms and
Conditions
Note: See our website www.automationdirect.com for complete engineering drawings
Book 2 (14.3)
w w w. a u t o m a t i o n d i r e c t . c o m / m o t o r- c o n t r o l s
Motor Controls
eMS-105
Prices as of October 21, 2015. Check Web site for most current prices.
GH15 Series Overload Relay Dimensions
110 mm contactor and overload dimensions
GH15NT, -PT + RTD180-18000
145 mm contactor and overload dimensions
GH15RT, -ST, -TT + RTD320
Note: See our website www.automationdirect.com for complete engineering drawings
Book 2 (14.3)
eMS-106
Motor Controls
1 - 8 0 0 - 633 - 0 4 0 5