Siemens SENTRON 3VL160X System Manual page 300

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