Reliable insulation monitoring of your IT system
The insulation monitoring relays of the CM-IWx range guarantee a continuous insulation monitoring of an IT system. The devices recognize insulation faults as they develop and trip immediately if the value has fallen below the minimum set threshold. This ensures a reliable operation of the system and prevents operational interruption caused by a second, more severe, insulation fault which may lead to a short circuit tripping the main circuit breaker.
Main benefits
Continuous operation
- Down-time reduction by providing early pre-warnings. Gaining time for maintenance planning
- Monitoring of voltage free networks for early fault detection
- Variants with rail & ship approvals
Safety and Protection
- Safe and reliable detection of insulation faults according latest standards
- Attractive portfolio for standard as well as more challenging applications
- Can prevent fire due to fast and reliable earth fault detection
- Built-in self-diagnosis and interrupted wire detection
Easy to Install
- Clear visualization of device status via LEDs
- Easy to adjust with rotary wheels
- Variants with push-in terminals
Main features
- Monitoring of system voltages up to 1500 V DC and 1100 V AC
- Monitoring of system leakage capacitances up to 3000 µF
- All kind of systems can be monitored: 2-wire, 3-wire, 4-wire as well as battery systems
- Interrupted wire detection configurable
- Non-volatile fault storage configurable