Multifunctional Three-Phase Monitoring Relays, CM Series
Caution
Product Description
The multifunctional relay from the CM three-phase monitors range.
It operates with a rated control supply voltage / three-phase measuring voltage of 300-500 V AC 50/60/400 Hz and has a 2 c/o (SPDT) output with contacts rated at 250 V / 4 A.
This relay monitors all phase parameters such as over/undervoltage, phase unbalance and phase failure.
The corresponding threshold values are adjustable.
The output contacts can be configured as 1x2 c/o (SPDT) contacts (common signal) or 2x1 c/o (SPDT) contact (separate signal for over- and undervoltage thresholds) operation.
The tripping delay is adjustable over a range of instantaneous to 30 s (0, 0.1-30 s).
A sealable transparent cover for protection against unauthorized changes is available as accessory.
The device offers screw connection technology with double-chamber cage connection terminals.