Siemens SENTRON 3VL series - Page 300

Circuit diagrams
3VL IEC molded case circuit breakers
300 System Manual, 11/2013, 110 0110 - 02 DS 03
Circuit diagrams, undervoltage release and shunt release
"S contat" integrated into
shunt release
Undervoltage release and shunt release for VL160X to VL1600
S01
Delayed release
S02
Instantaneous release for EMERGENCY-OFF loop (if required)
S03 Leading auxiliary contact, e.g. 3VL9300-3AS10 "OFF to ON" in the front-operated rotary
operating mechanism of the molded case circuit breaker (if required)
K1
Auxiliary contactor 3RH11 (if required)
Figure 13-7 Time-delay device (3TX4701-0A) for undervoltage release for VL160X to VL1600
Protective circuit with UVR
(220 V to 250 V DC)
Tripping time UVR
Y2 only
Approx. 3 seconds
Y2 and Y1 bridged
Approx. 6 seconds
Protective circuit with UVR and contactor
Tripping time UVR
Drop-out time contactor
Y2 only 0.8 s Approx. 2 s
Y2 and Y1 bridged
1.2 s
Approx. 4 s