ABB

CM-SRS.21S Current monitoring relay 2c/o, B-C=3mA-1A RMS, 24-240VAC/DC

CM-PVS.41S ABB Three-phase monitoring relay 2c/o, 0,0.1-30s, L1-L2-L3=3x300-500VAC

CM-PFS.S ABB Three-phase monitoring relay 2c/o, L1-L2-L3=200-500VAC 50/60Hz

CM-PAS.41S ABB Three-phase monitoring relay

CM-PAS.41 ABB THREE PHASE MONITORING RELAY 1SVR63074R3300

The CM-MSS.31S belongs to the CM-MSS thermistor motor protection relay range. It operates with a rated control supply voltage of 24–240 V AC or DC and has a 1 n/c + 1 n/o (SPDT) output with contacts rated at 250 V or 4 A. It features one sensor circuit to monitor PTC temperature sensors and works according to the closed-circuit principle. The sensor circuit of the CM-MSS.31S is short-circuit as well as interrupted-wire monitored, and the relay can be reset automatically, manually, or remotely after the failure has been removed. This protection relay is certified according to the ATEX directive 94/9/EC and is equipped with a reset/ttest button. A sealable, transparent cover for protection against unauthorized changes is available as an accessory. The device offers screw connection technology with double-chamber cage connection terminals.