Carlo Gavazzi PWB03CM4810A active power direction monitoring relay for three-phase 380–480 V AC motor and industrial automation monitoring applications.
£178.91
The Carlo Gavazzi PWB03CM4810A is a reliable three-phase active power direction monitoring relay designed for monitoring electrical load conditions and detecting incorrect power flow within industrial systems. As part of the Carlo Gavazzi PWB03 power monitoring relay series, it provides accurate active power and power direction supervision for motor protection, automation and process control applications.
This monitoring relay measures active power in three-phase AC systems and monitors power direction to identify abnormal operating conditions such as incorrect load behaviour or unwanted reverse power flow. Its compact plug-in housing design enables straightforward installation while providing dependable relay switching for alarm and control circuits.
With a 380–480 V AC three-phase voltage range, a measurement capability up to 10 A or through compatible MI current transformers, and a 1 SPDT relay output, the PWB03CM4810A is suitable for monitoring motors, pumps, generators and industrial machinery.
Active power direction monitoring relays such as the Carlo Gavazzi PWB03CM4810A provide an effective method of supervising electrical equipment by measuring power consumption and monitoring the direction of energy flow within three-phase systems. This helps identify abnormal operating conditions and improves equipment protection.
The PWB03 series is designed for industrial automation engineers and machine builders requiring dependable electrical monitoring. Its compact plug-in format, relay output and compatibility with current transformers allow simple integration into motor control and protection systems.
| Manufacturer | Carlo Gavazzi |
|---|---|
| Series | PWB03 Power Monitoring Relays |
| Model | PWB03CM4810A |
| Product type | Active power direction monitoring relay |
| Monitoring function | Active power and power direction |
| Supply voltage | 380–480 V AC |
| Three-phase voltage range | 380–480 V AC |
| Current measurement range | Up to 10 A or via MI current transformers |
| Frequency range | 45–65 Hz |
| Output | 1 x SPDT change-over contact |
| Alarm function | Over-power, under-power and power direction monitoring |
| Time delay | Delay on alarm |
| Maximum permitted delay-on energisation time | 30 s |
| Mounting type | Plug-in |
| Electrical connection | Plug-in connection |
| Housing width | 36 mm |
| Protection rating | IP20 |
The PWB03CM4810A is used for monitoring active power and power direction in three-phase AC systems and detecting abnormal operating conditions in industrial applications.
The Carlo Gavazzi PWB03CM4810A operates from a 380–480 V AC three-phase supply.
The relay supports measurement up to 10 A directly or through compatible MI current transformers.
The PWB03CM4810A provides a 1 x SPDT change-over relay output for switching and alarm applications.
The relay uses a compact 36 mm plug-in housing for installation in industrial control panels.
Carlo Gavazzi monitoring relays are widely used in industrial automation and control systems to provide dependable electrical monitoring, motor protection and efficient machine operation.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...