Siemens 3RR2442-1AA40 New In Box3RR2442 1AA40 Siemens Description: Current monitoring relay for IO Link, can be mounted to Contactor 3RT2, Size S0 Apparant active current monitoring 4 40 A, 20 400 Hz, 3 phase Supply voltage 24 V DC 1 change over contact Monitoring for Current overshoot and undershoot Current asymmetry Phase failure, Cable break Phase sequence, Residual current Blocking current, Switching cycle and Operating hours counter Warning and alarm thresholds Auto reset or
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