This is designed to monitor 3-phase supplies and to protect
motors and other loads against the faults listed below.
Monitoring of rotational direction of phases
Detection of complete failure of one or more of the phases
Undervoltage detection (-10%)
Overvoltage detection (+10%)
Detection of phase asymmetry (imbalance) (±10%)
The relay operates if any of the conditions occours.
The relay releases if any of the conditions fails.
There is a Time Delay between the relay action and the condition occours (except rotational direction of phases error)
to avoid very short interruptions or other momentary failures.
A selector switch allows selection of an adjustable time delay from 0.1 s to 10 s.
When the supply returns towards its rated value, the relay is re-energised according to the hysteresis value (5%)
SPECIFICATION
Output :1 FORM C(SPDT) 10A 250VAC 1/2HP
Supply voltage: 3 Phase AC 50/60Hz 300V-480V can be setted
Adjustalbe Time Delay: 0.1-10 sec
Mechanical Life: 10,000,000 operations.
Electrical Life: 100,000 operations at rated load.
Ambient Temperature: -10ºC to +60ºC
Ambient Humidity: 45~85% RH
Mounting: Directly at DIN rail.
Weight Approx.: 100g
Indications:
Green LED: indicates relay state.
Red LED: overvoltage fault. undervoltage fault. phase asymmetry.
phase failure or incorrect rotational direction of phases.
Audited Supplier 
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