© Allen-Bradley
Bul. 140U
H and J-Frame Circuit Breakers and Motor Circuit Protectors
Instruction Leaflet for Shunt Trip
1.0 SHUNT TRIP KIT
Accessory EL we
lidentitication | | ;
Label
to CG Shunt Tip Connection
Diagram Label
Figure 1-1 Shunt Trip kit
2.0 GENERAL INFORMATION
The Shunt Trip allows a circuit breaker to be tripped
remotely by applying a voltage to the wire leads. The unit
consists of an intermittent solenoid with a tripping
plunger and a cutoff switch, and is mounted so that when
the solenoid is energized, the trip lever presses against
the trip bar and trips the circuit breaker. As the breaker
trips, the molded crossbar moves away from the cutoff
switch, disconnecting power to the solenoid and prevent-
ing coil burnout.
YEL WH
| (sT) | |
ST | |
Figure 2-1 Shunt Trip connection diagram
* Maximum operations per minute: 5
* Maximum operating voltage: 110% of maximum
voltage range rating
Table 2-1 Shunt Trip application and electrical operating rating data
Catalog Voltage,
12
24
48
60
12
24
48
60
12-60 50-60 Hz
140U-H-SNJ
140U-H-SND| 110-240 | 50-60 Hz
(Suitable
for use in
ground fault
protection
applications)
110-125
140U-H-SNB| 380-600 | 50-60 Hz
40752-004(1) Effective 6/02
he (100.25 | ln Q One Minute
1.2 0.85
2.4 1.7
4.1 2.9
5.0 3.5
83
92
117
270
308
360
99
120
121
418
540
572
624
840
880
1080
Rockwell
Automation
ED Allen-Bradley
3.0 INSTALLATION
Page 2
A WARNING
DO NOT ATTEMPT TO INSTALL OR PERFORM MAINTENANCE ON EQUIPMENT WHILE IT IS ENERGIZED.
DEATH OR SEVERE PERSONAL INJURY CAN RESULT FROM CONTACT WITH ENERGIZED EQUIPMENT.
ALWAYS VERIFY THAT NO VOLTAGE IS PRESENT BEFORE PROCEEDING. ALWAYS FOLLOW SAFETY
PROCEDURES. ALLEN-BRADLEY IS NOT LIABLE FOR THE MISAPPLICATION OR MISINSTALLATION OF
ITS PRODUCTS.
@ Remove the breaker cover and sleeve. O Install Shunt Trip (left pole only).
Figure 3-2 J-Frame cover removal Figure 3-4 Shunt Trip installation in J-Frame
40752-004(1) Effective 6/02 Rockwell
Automation
& Allen-Bradley
Page 3
@ Route wires. © Reinstall breaker cover.
Note: Break off side tab
on cover if routing wires
through side opening.
Figure 3-6 Wire routing in J-Frame Figure 3-8 J-Frame cover installation
40752-004(1) Effective 6/02 Rockwell
Automation
Page 4
UD Allen-Bradley
@ Apply labels. 5.0 REMOVAL
Removal is the reverse of the installation procedure.
Remove the Shunt Trip by pulling straight up on pull tab
(see Figure 5-1). Be sure to reinstall the sleeve removed
in Section 3.0, step 1.
Figure 5-1 Shunt Trip removal
Figure 3-9 Accessory Identification and Circuit Diagram
label application
4.0 TESTING
Refer to figure 4-1.
Step 1: With no voltage applied to Shunt Trip, ensure
that breaker handle can be set to the Closed (ON)
position.
Step 2: Where practical and after taking all necessary
precautions, apply rated voltage to Shunt Trip and ensure
that breaker handle moves to the TRIP position.
| L
|
|A
TRIP c——
OFF 1:77
RESET
Elo
Figure 4-1 Circuit Breaker/Motor Circuit Protector handle
Open (OFF), Closed (ON), and TRIP positions
40752-004(1) Effective 6/02 | A rociar
— НО ал
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