Accessories; Electrical Accessories - Allen-Bradley 140G-R Installation Instructions Manual

10 Accessories

10.1 Electrical accessories

Shunt Trip / Shunt Close (SNT/SNC)
A shunt Trip Relay is typically used to remote (electrically) open the circuit-breaker. Used in conjunction with a spring charging motor and the
Shunt Close Relay the circuit-breaker can be operated with remote control.
This release provides an instantaneous service (*), but can be supplied permanently (**).
In uses where the shunt closing release is supplied permanently, the shunt closing release must be momentarily de-energized in order to reclose
the circuit breaker after opening (the circuit breaker operating mechanism is, in fact, fi tted with an anti-pumping device).
(*) In the case of instantaneous service, the current impulse must last at least 100 ms.
(**) In the case of permanent power supply to the shunt opening release, wait for at least 30 ms before transmitting the signal to the shunt closing release.
Reference fi gure in the electrical circuit diagrams: SNT (4) - SNC (2)
Operating voltage [Un]
Undervoltage Relay (UVR)
The undervoltage relay is energized with the presence of supply power. The relay will de-energize when supply power drops below 70%.
It can be used to remote trip the circuit-breaker (by means of normally closed pushbutton).
Operating voltage [Un]
Circuit-breaker opening takes place with power supply voltage values of the release equivalent to 35 - 70% Un.
Circuit-breaker closing can take place with power supply voltage values of the release equivalent to 85 - 110% Un.
Reference fi gure in the electrical circuit diagrams: UVR (6)
Inrush power consumption (Ps):
Continuous power (Pc):
Opening time (UVR):
Insulation voltage
DIR 1000682R0002 Version 03
24 V DC
60 V AC/DC
110-120 V AC/DC
220-240 V AC/DC
380-400 V AC
24 V DC
60 V AC/DC
110-120 V AC/DC
220-240 V AC/DC
380-400 V AC
440 V AC
DC = 200 W
AC = 200 VA
DC = 5 W
AC = 5 VA
30 ms
2500V 50/60 Hz (per 1 min.)
Operating limits
(Standard IEC 60947-2)
Inrush power consumption (Ps)
Inrush power time ~100 ms
Continuous power (Pc)
Opening time (SNT)
Closing time (SNC)
Insulation voltage
(22)
(SNT) : 70...110% Un
(SNC) : 85...110% Un
DC = 200 W
AC = 200 VA
DC = 5 W
AC = 5 VA
(max) 60 ms
(max) 80 ms
2500V 50 Hz (for 1 min.)