www.weg.net
WEG Molded Case Circuit Breakers - User’s Manual
8
WARNING
Hazardous voltage conditions can cause death or severe personal injury.
Maintain original electrical clearance and creepage spacings at terminations.
3. MANUAL OPERATION AND THERMAL-MAGNETIC
TRIP UNIT ADJUSTMENT
3.1. MANUAL OPERATION
Manual operation of the circuit breaker is controlled by the circuit breaker handle
and the PUSH-TO-TRIP button in the trip unit. The circuit breaker handle has three
positions, two of which are shown on the cover with raised lettering to indicate ON
and OFF. On the handle, ON, OFF, and trip are also shown by a color-coded strip
for each circuit breaker handle position: red for ON, white for tripped, and green
for OFF (see Figure 6).
Magnetic
adjustment
button
(3 places)
Thermal-
magnetic
trip unit
Push-to-trip
button
ON
Handle
position
indicator
International symbols
Color:
Red
-
-
-
ON
ON
OFF
- TRIP
- OFF (reset)
White
Green
TRIP
OFF
Figure 6:
circuit breaker manual controls
