The CM-ESS.MS is a multifunctional voltage monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply
Technical data
Series
CM
Electrical
Response threshold voltage
3–600 V
Operating voltage at AC 50Hz
230 V
Operating voltage from 60 Hz AC mains
230 V
AC supply voltage 50Hz
24–240 V
AC 60 Hz supply voltage
24–240 V
DC supply voltage
24–240 V
Voltage measurement range 1
3–600 V
Voltage measuring range 2
3–600 V
Rated switching current
4 A
1-phase
Yes
3-phase
No
1-phase hysteresis monitoring possible
Yes
3-phase hysteresis monitoring possible
Yes
1-phase undervoltage monitoring possible
Yes
3-phase undervoltage monitoring possible
No
Monitored voltage current type
AC/DC
Operating voltage current type
AC/DC
Supply voltage current type
AC/DC
Connection type
Screw connection
External power supply required
Yes
With removable terminals, clamps
No
Includes DC voltage monitoring functions - hysteresis
Yes
Includes DC voltage monitoring functions - undervoltage
Yes
Includes DC voltage monitoring functions - overvoltage
Yes
Mechanical
Depth
103.7 mm
Width
22.5 mm
Height
85.6 mm
Other
Minimum adjustable delay time
1 s
Minimum adjustable response delay time without time lag