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

Manufacturer: ABB Stotz S&J
Designation: 3-Phase Monitoring Relay 2W 30s, 3x400VAC
Type: CM-PSS.41S
Electrical connection type: Screw connection
With removable terminals: no
Rated control supply voltage Us at AC 50 Hz: 400 V
Rated control supply voltage Us at AC 60 Hz: 400 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: 360..440 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, as well as the trouble-free and economical operation of machines and systems. The relays monitor the phase voltages, phase sequence, phase asymmetry, the presence of all phases, and the neutral conductor as needed.