Products

Phase Failure Relay (PFR) GC1100



GC1100 phase failure relays protect three phase lines, transformers, motors, generators, and another three phase loads against phase unbalance, phase loss, and phase reversal.

The output relay energizes and the green BALANCE LED lights when a balanced input with the proper phase sequence is sensed. The output relay de-energizes and the BALANCE LED goes out when a fault condition is detected.

One external potentiometer control - ASYMMETRY (%) - is provided. The potentiometer adjusts percentage of unbalanced voltage at which the relay trips. A factory presetted hysteresis provides enough and sufficient time delay to prevent relay tripping on voltage transients.The units are self powered



Specification


Nominal voltage
Frequency
Set point range
Relay type
Burden
Operating temperature
Storage temperature
Relative humidity
Weight
Mounting

380Vac
50 Hz
adjustable 5% … 25% of Nominal voltage
SPDT – Contact rating 5A (cos? = 1), 250 Vac
5VA / 4W (max)
0° C … +50° C
-10° C … +70° C
95% (non condensing)
324 gr
DIN rail 35 x 7.5 mm


Dimension





Wiring