ABB CM-IWS.1S 1SVR730660R0100 Insulation Monitoring Relay

FAQ

Q1. What is the main function of the CM-IWS.1S relay?
It monitors insulation resistance in unearthed electrical systems and provides an alarm when insulation falls below the set threshold.

Q2. What types of electrical systems can it monitor?
The relay is suitable for unearthed AC systems, DC systems, and mixed AC/DC networks.

Q3. What supply voltage does the relay require?
It operates with a wide control supply range of 24 to 240 V AC or DC.

Q4. What is the insulation monitoring range?
The device monitors insulation resistance within a range of 1 kΩ to 100 kΩ.

Q5. How is the relay installed in a control panel?
It is designed for snap-on installation on a standard 35 mm DIN rail.

Q6. What type of output contact does the device provide?
The relay includes one changeover (SPDT) contact for alarm or control signaling.

Q7. What visual indicators are available on the relay?
LED indicators show power supply status, relay state, and insulation fault conditions.

Q8. In what applications is the CM-IWS.1S commonly used?
It is widely used in industrial control panels, medical IT systems, UPS installations, and other equipment where insulation monitoring is critical.

1SVR730660R0100 ABB CM-IWS.1S

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