ABB Voltage monitoring relay

ABB Stotz S&J Voltage Monitoring Relay CM-EFS.2P

Manufacturer: ABB Stotz S&J
Designation: Voltage monitoring relay 2W 600V, 24-240VAC/DC
Type: CM-EFS.2P
Electrical connection type: Spring terminal connection
With removable terminals: no
Single-phase undervoltage possible: yes
Three-phase undervoltage possible: no
Single-phase overvoltage possible: yes
Three-phase overvoltage possible: no
Single-phase window possible: yes
Three-phase window possible: no
Includes DC undervoltage function: yes
Includes DC overvoltage function: yes
Includes DC window function: yes
Voltage measurement range 1: 3..600 V
Type of voltage in measurement range: AC/DC
Rated control supply voltage Us at AC 50 Hz: 24..240 V
Rated control supply voltage Us at AC 60 Hz: 24..240 V
Rated control supply voltage Us at DC: 24..240 V
Type of voltage for operation: AC/DC
Response value voltage: 3..600 V
Min. adjustable response delay time: 0 s
Max. permissible response delay time: 0 s
Min. adjustable fallback delay time: 0 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 voltage monitoring relays of the CM series provide reliable monitoring of voltages and detection of phase failures in single-phase networks. All devices are available in two different connection versions. You can choose between the proven screw connection technology (double-chamber box connection terminals) and the tool-free Easy Connect connection technology (push-in terminals).