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1SVR730670R0200 ABB CM-IWS.2S Insulation Monitoring Relay 1–100 kΩ 24–240 V AC/DC
ABB CM-IWS.2S 1SVR730670R0200 is a 24–240 V AC/DC insulation monitoring relay with a 1–100 kΩ adjustable measuring range and one changeover contact for unearthed AC systems up to 400 V AC.
£162.57
Why Choose the ABB CM-IWS.2S Insulation Monitoring Relay?
The ABB CM-IWS.2S 1SVR730670R0200 is a compact and reliable insulation monitoring relay designed for continuous supervision of insulation resistance in unearthed AC systems. As part of the ABB CM-IWS insulation monitoring relay series, it provides early detection of deteriorating insulation to support electrical safety, preventative maintenance and reliable operation of industrial equipment.
The CM-IWS.2S is designed for unearthed AC systems up to 400 V AC and provides an adjustable insulation resistance measuring range of 1–100 kΩ. This enables the response threshold to be configured to suit the requirements of the monitored installation.
A wide 24–240 V AC/DC control supply range provides flexibility when integrating the relay into industrial control systems. The CM-IWS.2S features one changeover (SPDT) output contact, supports system leakage capacitance up to 10 µF and uses screw terminals in a slim 22.5 mm housing for convenient DIN-rail installation.
Key Advantages
- Continuous insulation resistance monitoring for unearthed AC systems.
- Suitable for monitored systems up to 400 V AC.
- Adjustable 1–100 kΩ insulation resistance measuring range.
- Wide 24–240 V AC/DC control supply simplifies integration.
- One changeover (SPDT) output contact for signalling and control functions.
- Supports system leakage capacitance up to 10 µF.
- Compact 22.5 mm wide housing conserves DIN-rail space.
- Screw-terminal connections provide straightforward panel wiring.
Key Features
- ABB CM-IWS.2S insulation monitoring relay.
- Designed for unearthed AC systems.
- Monitored system voltage up to 400 V AC.
- 1–100 kΩ adjustable measuring range.
- 24–240 V AC/DC rated control supply voltage.
- 1 c/o (SPDT) relay output.
- Maximum system leakage capacitance of 10 µF.
- Measuring circuit frequency up to 400 Hz.
- Screw terminals for electrical connections.
- Compact DIN-rail format for industrial control cabinets.
Reliable Insulation Monitoring for Unearthed AC Systems
Insulation monitoring relays continuously supervise the insulation resistance between an unearthed electrical system and protective earth. The ABB CM-IWS.2S detects deterioration in insulation resistance and allows its relay output to signal or initiate an appropriate control response when the configured threshold is reached.
Continuous monitoring can help identify developing insulation faults before they result in more serious electrical problems or unplanned interruptions. With its adjustable 1–100 kΩ range and suitability for unearthed AC networks up to 400 V AC, the CM-IWS.2S provides a practical monitoring solution for industrial machinery, control systems and electrical installations.
Typical Applications
- Unearthed IT AC electrical systems.
- Industrial machine and equipment control circuits.
- Three-phase main circuit insulation monitoring.
- Process and manufacturing installations.
- Industrial automation systems.
- Preventative electrical maintenance systems.
- Industrial control and electrical distribution panels.
Technical Specifications
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| Signal / Input Range | 1–100 kΩ | |
|---|---|---|
| Monitoring Function | Insulation | |
| Series | CM-IWS | |
| ABB order code | 1SVR730670R0200 | |
| Product type | Insulation monitoring relay | |
| Function | Insulation resistance monitoring in unearthed AC systems | |
| Rated control supply voltage | 24–240 V AC/DC | |
| Monitored system voltage | Up to 400 V AC | |
| Measuring range | 1–100 kΩ | |
| Measuring circuit frequency | 15–400 Hz | |
| Maximum system leakage capacitance | 10 µF | |
| Output | 1 changeover (SPDT) contact | |
| Terminal type | Screw terminals | |
| Housing protection | IP50 | |
| Operating temperature | -25 to +60 °C | |
| Storage temperature | -40 to +85 °C | |
| Product width | 22.5 mm | |
| Product height | 85.6 mm | |
| Product depth | 103.7 mm | |
| Net weight | approx. 0.141 kg |
Frequently Asked Questions
What is the ABB CM-IWS.2S 1SVR730670R0200 used for?
It is an insulation monitoring relay designed to continuously monitor insulation resistance in unearthed AC electrical systems.
What insulation resistance range does the CM-IWS.2S monitor?
The CM-IWS.2S provides an adjustable insulation resistance measuring range of 1–100 kΩ.
What system voltage can the ABB CM-IWS.2S monitor?
ABB order code 1SVR730670R0200 is designed for unearthed AC systems up to 400 V AC.
What control supply does the CM-IWS.2S require?
The relay operates from a wide 24–240 V AC/DC rated control supply.
What output does the CM-IWS.2S provide?
The relay provides one changeover (SPDT) output contact for integration with alarm, signalling and industrial control circuits.
Trusted ABB Insulation Monitoring Technology
ABB CM insulation monitoring relays provide dependable supervision of insulation resistance in unearthed electrical systems, helping machine builders, panel builders and industrial operators detect insulation deterioration and maintain reliable equipment operation.
