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PWA01CM485A – 480V 1/3-PH COS PHI RELAY
Carlo Gavazzi PWA01CM485A cos phi monitoring relay for three-phase 380–480 V AC motor load monitoring and industrial automation applications.
£112.12
Why Choose the Carlo Gavazzi PWA01CM485A Cos Phi Monitoring Relay?
The Carlo Gavazzi PWA01CM485A is a reliable three-phase cos phi monitoring relay designed for monitoring motor load conditions and detecting changes in power factor within industrial electrical systems. As part of the Carlo Gavazzi PWA01 power monitoring relay series, it provides accurate cos phi supervision for motor protection, automation and process control applications.
This monitoring relay measures the power factor of AC motors and electrical loads, helping identify underload conditions, loss of load and inefficient operation. Its compact plug-in housing design enables simple installation in industrial control panels while providing dependable relay-based switching for alarm and control functions.
With a 380–480 V AC three-phase supply range, a measurement capability of up to 5 A or through compatible MI current transformers, and a 1 SPDT relay output, the PWA01CM485A is suitable for monitoring pumps, fans, motors and industrial machinery.
Key Advantages
- Compact cos phi monitoring relay for three-phase motor supervision.
- 380–480 V AC operating voltage for industrial electrical systems.
- Monitors power factor to detect motor load variations.
- Up to 5 A current measurement range or use with MI current transformers.
- 1 SPDT change-over relay output for alarms and control circuits.
- Space-saving 36 mm plug-in housing design.
Key Features
- Carlo Gavazzi PWA01 power monitoring relay series.
- Three-phase cos phi monitoring function.
- 380–480 V AC mains voltage range.
- Measurement range up to 5 A or via MI current transformers.
- 1 x SPDT relay output.
- Plug-in electrical connection.
- 36 mm compact housing.
- UL approved design.
Reliable Motor Load Monitoring for Industrial Systems
Cos phi monitoring relays such as the Carlo Gavazzi PWA01CM485A provide an effective method of supervising motor operation by measuring the relationship between voltage and current. Monitoring power factor allows control systems to identify abnormal load conditions and improve equipment reliability.
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 allow easy integration into motor control and protection systems.
Typical Applications
- Industrial motor load monitoring systems.
- Pumps and water handling equipment.
- Fans and ventilation systems.
- Industrial machinery and automation equipment.
- Process control installations.
- OEM electrical control panels.
Technical Specifications
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| Mounting Type | Plug-in socket | |
|---|---|---|
| Monitoring Function | Power / cos φ | |
| Monitored Supply | Three-phase | |
| Time Delay | Adjustable | |
| Manufacturer | Carlo Gavazzi | |
| Series | PWA01 Power Monitoring Relays | |
| Model | PWA01CM485A | |
| Product type | Cos phi monitoring relay | |
| Monitoring function | Power factor (cos phi) | |
| Mains voltage | 380–480 V AC | |
| Three-phase voltage range | 380–480 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 |
Frequently Asked Questions
What is the Carlo Gavazzi PWA01CM485A used for?
The PWA01CM485A is used for monitoring the power factor (cos phi) of three-phase AC motors and electrical loads in industrial applications.
What voltage supply does the PWA01CM485A require?
The Carlo Gavazzi PWA01CM485A operates from a 380–480 V AC three-phase supply.
What current measurement range does this relay support?
The relay supports measurement up to 5 A directly or through compatible MI current transformers.
What type of output does the relay provide?
The PWA01CM485A provides a 1 x SPDT change-over relay output for switching and alarm applications.
How is the PWA01CM485A installed?
The relay uses a compact 36 mm plug-in housing for installation in industrial control panels.
Trusted by Industrial Automation Professionals
Carlo Gavazzi monitoring relays are widely used in industrial automation and control systems to provide dependable electrical monitoring, motor protection and efficient machine operation.
