124 Rockwell Automation Publication 2100-IN012G-EN-P - August 2016
Appendix A Bulletin 140G Unit Assembly Instructions
Verify Operation
1. Make sure the circuit breaker/bale is in the ‘ON’ position, push the
‘Trip’ button on the circuit breaker, and observe that the toggle on the
circuit breaker and the switch on the handle have moved to the tripped
position.
2. Attempt to move the handle from the tripped position to the ‘OFF’
position and back again to ‘ON’ to verify reset of the circuit breaker.
If the handle does not move to the ‘ON’ position, adjust the circuit
breaker position and retry the trip sequence.
Adjust the Circuit Breaker Position
Follow these steps to adjust the circuit breaker position.
1. Loosen the two circuit breaker mounting screws.
2. Turn the adjustment screw on the top of the base assembly to the right
(clockwise) to move the circuit breaker higher in the unit.
Turn the adjustment screw on the top of the base assembly to the left to
lower the circuit breaker in the unit.
3. After the external contacts have been snapped on, adjust the auxiliary
bracket until the bale contacts the plunger on the front contact when in
the ‘ON’ position and tighten to these values:
• 32 lb•in (3.62 N•m) for #8 screws
• 18 lb•in (2.0 N•m) for #6 screws
4. Tighten the two circuit breaker mounting screws to 10 lb•in
(1.13 N•m).
TIP The adjustment distance is limited. If you feel resistance when you turn the
adjustment screw (and you confirmed that you have already loosened the
circuit breaker mounting screws), you have reached the adjustment limit.
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