ABB 3-phase monitoring relay

ABB Stotz S&J 3-Phase Monitoring Relay CM-PVS.41S

Manufacturer: ABB Stotz S&J
Designation: 3-Phase Monitoring Relay 2W 30s, 3x300-500VAC
Type: CM-PVS.41S
Electrical connection type: Screw connection
With removable terminals: no
Rated control supply voltage Us at AC 50 Hz: 300..500 V
Rated control supply voltage Us at AC 60 Hz: 300..500 V
Voltage type for operation: AC
Phase sequence monitoring function: yes
Phase failure detection function: yes
Under-voltage detection function: yes
Over-voltage detection function: yes
Asymmetry detection function: no
Voltage measurement range: 300..500 V
Min. adjustable response delay time: 0.2 s
Max. permissible response delay time: 0.2 s
Min. adjustable fallback delay time: 0.1 s
Max. permissible fallback delay time: 30 s
Number of contacts as changeover: 2
Width: 22.5 mm
Height: 85.6 mm
Depth: 103.7 mm

The CM series three-phase monitoring relays ensure reliable and continuous monitoring of a three-phase network to guarantee the smooth and economical operation of machines and systems. The relays monitor phase voltages, phase sequence, phase asymmetry, the presence of all phases, and the neutral conductor as needed.