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december 2019
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MMR-U3, MMR-X3 Voltage monitoring relays

Technical support

weekdays: 9:00-15:00 (CET)

Parameters
Accessories
Certification marks
Arrangement of contacts 001
Rated operating voltage AC AC 250 V
Rated operating current AC-1 / AC 250 V 8 A
Rated operating voltage AC (measuring circuit) AC 230/400 V
Rated frequency 50 Hz
Adjustable delay 0 s ÷ 10 s
Adjustable overvoltage level 225 ÷ 265 V
Adjustable undervoltage level 180 ÷ 220 V
Adjustable value of asymmetry 5 ÷ 20 %
Input power 1,5 VA
Degree of protection IP20
Conductor rigid max. 0,2 ÷ 2,5 mm2
Ambient temperature min. -20 °C
Ambient temperature max. 55 °C
EN 60255-1  
IEC 60255-1