Carlo Gavazzi PWA01CM235A cos phi monitoring relay for three-phase 208–240 V AC motor load monitoring and industrial automation applications.
£153.35
The Carlo Gavazzi PWA01CM235A is a reliable three-phase cos phi monitoring relay designed for monitoring motor load conditions and detecting underload or overload situations in industrial electrical systems. As part of the Carlo Gavazzi PWA01 power monitoring relay series, it provides accurate power factor monitoring for motor protection and automation applications.
This monitoring relay measures the power factor (cos phi) of AC motors and electrical loads, helping identify changes in operating conditions that may indicate mechanical problems, loss of load or inefficient operation. Its compact plug-in design simplifies installation in control panels and industrial equipment.
With a 208–240 V AC supply range, support for direct current measurement up to 5 A or measurement via compatible MI current transformers, and a 1 SPDT relay output, the PWA01CM235A is suitable for reliable monitoring of three-phase motors, pumps, fans and industrial machinery.
Cos phi monitoring relays such as the Carlo Gavazzi PWA01CM235A provide an effective method of supervising motor operation by measuring the relationship between voltage and current. Changes in power factor can indicate abnormal operating conditions, allowing control systems to respond quickly.
The PWA01 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 make it suitable for integration into a wide range of control and protection systems.
| Manufacturer | Carlo Gavazzi |
|---|---|
| Series | PWA01 Power Monitoring Relays |
| Model | PWA01CM235A |
| Product type | Cos phi monitoring relay |
| Monitoring function | Power factor (cos phi) |
| Supply voltage | 208–240 V AC |
| Three-phase voltage range | 208–240 V AC |
| Current measurement range | Up to 5 A or via MI current transformers |
| Cos phi measurement range | 0.1–0.99 |
| Frequency range | 45–65 Hz |
| Output | 1 x SPDT change-over contact |
| Mounting type | Plug-in |
| Connection type | Plug-in connection |
| Housing width | 36 mm |
| Time delay | No delay adjustment |
The PWA01CM235A is used for monitoring the power factor (cos phi) of three-phase AC motors and electrical loads in industrial applications.
The Carlo Gavazzi PWA01CM235A operates with a 208–240 V AC supply.
The relay supports measurement up to 5 A directly or through compatible MI current transformers.
The PWA01CM235A provides a 1 x SPDT change-over relay output for switching and alarm applications.
The relay uses a compact plug-in housing design 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...