Specifications

Product Type	Insulation monitoring relay
Brand	ABB
Series	CM-IWM.11
Function	Insulation resistance monitoring of unearthed AC, DC and mixed AC/DC IT systems
Electrical Endurance	10000 cycle
Rated Control Supply Voltage (Us)	24 V DC
Rated Operational Current AC-15 (Ie)	3 A (n/o); 1 A (n/c)
Contact Configuration	2CO SPDT
Measuring Range	20-2000 kOhm
Output Type	2CO SPDT
Rated Frequency	DC or 16 to 1000 Hz
Rated Voltage	24 VDC
Terminal Type	Screw terminals
Time Range	Less than 10 s at Ce = 1 µF
Rated Operational Voltage (AC/DC)	250 V AC
Output	2 x 1 c/o (SPDT) contacts
Short-Circuit Protective Devices	4 A gL
Mechanical Durability	10000000 cycle
Conductor Cross Section Flexible	1 x 2.5 mm²; 2 x 1.5 mm²; 2 x 2.5 mm²
Conductor Cross Section Solid Core	1 x 4 mm²
Housing Material	Thermoplastic, UL 94 V-0
Model	Unearthed Mixed AC/DC Systems, Up to 1500 VDC, Up to 1100 VAC, Unearthed AC Systems, Unearthed DC Systems
Mounting Type	DIN Rail
Depth	121 mm
Height	90 mm
Weight	0.5 kg
Width	90 mm
Pollution Degree	2
Storage Temperature	-40 to 70 °C
Operating Temperature	-25 to 60 °C (spaced from heat-generating components); -25 to 45 °C (without spacing)
IP Rating	IP40 (housing); IP20 (terminals)
Standards and Approvals	EN 61557-8; EN 61000-6-2; EN 61000-6-4; EN 61326-2-4; EN IEC 63000; CE

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