Circuit diagrams
3VL molded-case circuit breakers
318 System Manual, 03/2009, 110 0110 - 02 DS 01
Table 14- 1 Terminal assignments for rotary operating mechanism, leading auxiliary switch
Q1 Main contacts A1 Electronic overcurrent trip unit
F1 Tripping solenoid for A1 F2 Undervoltage release
F3 Shunt release HS Auxiliary switches
AS Alarm switches
EBS Leading auxiliary switch ON (integrated into the rotary operating mechanism)
EMS Leading auxiliary switch OFF (integrated into the rotary operating mechanism)
T1 ... T4 Current transformer
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HS Auxiliary switches
AS Alarm switches
Figure 14-2 Internal circuit diagram for VL160-VL250
3- and 4-pole circuit breakers for line and motor protection with electronic overcurrent trip
units
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