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

Manufacturer: ABB Stotz S&J
Designation: Voltage Monitoring Relay 2W 24-240VAC/DC
Type: CM-EFS.2S
Electrical connection type: Screw 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 reset delay time: 0 s
Max. permissible reset 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 voltage monitoring relays 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 and the tool-free Easy Connect connection technology.