The CM-MPN.23S Is A Multifunctional Relay From The CM Three-Phase Monitors Range. It Operates With A Rated Control Supply Voltage / Three-Phase Measuring Voltage Of 180-280 V AC 50/60/400 Hz And Has A 2 C/O (SPDT) Output With Contacts Rated At 250 V / 4 A. This Relay Is Also Suitable To Monitor Single-Phase Mains. It Monitors All Phase Parameters Such As Over/Undervoltage, Phase Unbalance, Phase Failure As Well As An Interrupted Neutral. The Corresponding Threshold Values Are Adjustable. The CM-MPN.23S Also Offers Selection Of Phase Sequence Monitoring, Automatic Phase Sequence Correction As Well As An ON Or OFF Tripping Delay. The Output Contacts Can Be Configured As 1×2 C/O (SPDT) Contacts (Common Signal) Or 2×1 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 Maintenance Free Easy Connect Technology With Push-In Terminals.

• · Three-Phase Monitoring Relay