S3UM 120VAC UM 440/480VAC PILZ ⍾ 837395 ⍾ S3UM120VACUM440480VAC

Earth fault monitoring relay provides protection against insulationfaults; (50 kOhm) in galvanically isolated DC and AC voltage supplies,; width 22.5 mm, UB = 24 - 240 V AC/DC.

Current monitoring relay of max. current values, any; polarity of measuring inputs, 12 measuring ranges 0.01 - 50 Aselectable, 0.40 - 400; Hz, width 22.5 mm, UB = 24 - 240 V AC, 24 …

Phase sequence monitoring relay to detect the phase sequence, the; phase failure, the asymmetry of a three-phase supply, measuring voltage=; supply voltage, 2 C/O contacts, width 2 …