The CM-MPS.41S is a 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 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. Phase sequence monitoring as well as an ON or OFF tripping delay are selectable. 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.

• · Function:Phase failure detection Phase sequence monitoring Over- and undervoltage monitoring Phase unbalance detection
• · Measuring Range:(L-L) 300 … 500 V AC
• · Rated Control Supply Voltage (Us):(L-L) 300 … 500 V AC
• · Rated Frequency (f):Supply Circuit 50/60 Hz
• · Output:2 c/o (SPDT) contacts
• · Time Range:200 ms start-up delay 0 s or 0.1 … 30 s tripping delay (ON or OFF)
• · Screw Terminals
• · Minimum Switching Capacity:24 V 10 mA
• · Degree of Protection:Housing IP50 Terminals IP20