Reliable insulation monitoring of IT systems

CM-IWx insulation monitoring relays ensure continuous insulation monitoring of IT systems to minimize equipment downtime.

ABB’s CM-IWx insulation monitoring relays for IT systems provide continuous, reliable monitoring.

These devices recognize an insulation fault as it develops and trip once the value falls below a minimum set threshold.

This makes the system more reliable and prevents interruptions caused by severe secondary insulation faults.

Make your monitoring safer and your maintenance smarter with the CM-IWx insulation monitoring relay.

Continuous operation

Reduce downtime with early warning

More time for planned maintenance

Early fault detection by monitoring voltage-free networks

Railroad and marine approved models available

Safety and Protection

Safe and reliable insulation fault detection

Compliance with the latest standards

Solutions for standard and challenging applications

Fast and reliable earth fault detection supports fire protection

Self-diagnostics and wire break detection