Why Choose the ABB CM-PVE Phase Monitoring Relay?
The ABB CM-PVE 1SVR550870R9400 is a compact and reliable phase monitoring relay with neutral monitoring designed to supervise critical electrical conditions in three-phase mains. As part of the ABB CM-PVE three-phase monitoring relay series, it monitors phase failure together with overvoltage and undervoltage conditions, helping protect industrial equipment against unsuitable supply conditions.
This CM-PVE model includes neutral monitoring and is powered directly by the measuring circuit, reducing the need for a separate auxiliary supply. It monitors phase-to-phase voltages of 320–460 V AC and phase-to-neutral voltages of 185–265 V AC, providing straightforward integration into industrial control and protection systems.
The relay provides one normally open output contact and incorporates a 500 ms start-up delay and 500 ms tripping delay. Screw terminals and DIN-rail mounting support convenient control-panel installation, while LED status indication provides clear visual information on the relay's operating state.
Key Advantages
- Compact three-phase monitoring relay with neutral monitoring.
- Monitors phase failure, overvoltage and undervoltage conditions.
- 320–460 V AC phase-to-phase measuring range.
- 185–265 V AC phase-to-neutral measuring range.
- Powered directly by the measuring circuit without a separate auxiliary supply.
- One normally open output contact for integration with control and protection circuits.
- DIN-rail mounting and screw terminals simplify control-panel installation.
Key Features
- ABB CM-PVE phase monitoring relay.
- Integrated neutral monitoring.
- Phase failure detection.
- Overvoltage and undervoltage monitoring.
- 320–460 V AC L-L rated control supply / measuring voltage.
- 185–265 V AC L-N rated control supply / measuring voltage.
- 1 N/O output contact.
- 500 ms start-up delay.
- 500 ms tripping delay.
- LED indication of operating states.
- Screw-terminal connections.
- DIN-rail mounting for industrial control cabinets.
Reliable Phase and Voltage Monitoring
Three-phase monitoring relays help protect machinery and electrical systems by continuously supervising the incoming supply. The ABB CM-PVE detects phase failure as well as overvoltage and undervoltage conditions, allowing its output contact to signal or initiate appropriate control action when the monitored supply moves outside the permitted operating conditions.
The inclusion of neutral monitoring makes this CM-PVE particularly useful where the neutral conductor forms part of the monitored distribution system. The neutral-monitoring version can also be used for monitoring suitable single-phase mains, providing additional flexibility for industrial control applications.
Typical Applications
- Three-phase electrical distribution monitoring.
- Industrial motor and machinery protection circuits.
- Phase failure detection in control panels.
- Overvoltage and undervoltage supervision.
- Systems requiring neutral conductor monitoring.
- Pumps, compressors and production machinery.
- Industrial automation and electrical control cabinets.
