Lovato PMV50NA240 - VOLTAGE MONITORING RELAY FOR THREE-PHASE SYSTEM - WITH OR WITHOUT NEUTRAL - MINIMUM AND MAXIMUM AC VOLTAGE - PHASE LOSS - NEUTRAL LOSS AND INCORRECT PHASE SEQUENCE - 208…240VAC 50/60HZ

General characteristics

– Voltage monitoring relay, self powered, for minimum and maximum voltage, phase loss, neutral loss and incorrect phase sequence
– 4 configurable rated voltage (Ue):
• PMV50N A240: 208-220-230-240VAC (phase-phase) 120-127-132-138VAC (phase-neutral)
• PMV50N A440: 380-400-415-440VAC (phase-phase) 220-230-240-254VAC (phase-neutral)
• PMV50N A600: 480-525-575-600VAC (phase-phase) 277-303-332-347VAC (phase-neutral)
– Excellent tripping accuracy
– TRMS measurements (True Root Mean Square)
– Phase loss detection when one of the voltages is <70% rated voltage
– Phase or neutral loss tripping time: 60ms
– 2 relay outputs, each with 1 changeover contact (SPDT)
– Modular DIN 43880 housing, 3 module
– IEC degree of protection: IP40 on front (only when placed in IP40 enclosure or control board); IP20 at terminals.

ADJUSTMENTS

“V max” Maximum voltage tripping threshold 105...115% Ue
“V min” Minimum voltage tripping threshold 80...95% Ue
“Delay” for each Tripping time 0.1...20s
“Reset Delay” Resetting time 0.1...20s.

Certifications and compliance

Certifications obtained: EAC.
Compliant with standards: IEC/EN 60255-5, IEC/EN 61000-6-2, IEC/EN 61000-6-3, UL 508, CSA C22.2 n° 14.

Operational diagram

See page 18-19.