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PWB03CM4810A – 380-480V ACTIVE POWER RELAY
Carlo Gavazzi PWB03CM4810A active power direction monitoring relay for three-phase 380–480 V AC motor and industrial automation monitoring applications.
£152.07
Why Choose the Carlo Gavazzi PWB03CM4810A Active Power Direction Monitoring Relay?
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.
Key Advantages
- Compact active power direction monitoring relay for three-phase systems.
- 380–480 V AC three-phase monitoring range for industrial applications.
- Monitors both active power level and power direction.
- Up to 10 A measurement range or operation with MI current transformers.
- 1 SPDT change-over relay output for alarm and control functions.
- Space-saving 36 mm plug-in housing design.
Key Features
- Carlo Gavazzi PWB03 power monitoring relay series.
- Three-phase active power and power direction monitoring.
- 380–480 V AC supply voltage.
- Measurement range up to 10 A or via MI current transformers.
- 1 x SPDT relay output.
- Adjustable over-power and under-power monitoring levels.
- Power direction monitoring function.
- Delay-on-alarm function.
- 36 mm plug-in housing for control panel installation.
Reliable Power Direction Monitoring for Industrial Systems
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.
Typical Applications
- Industrial motor load monitoring systems.
- Pumps and water handling equipment.
- Generators and power flow monitoring applications.
- Fans and ventilation systems.
- Industrial machinery and automation equipment.
- OEM electrical control panels.
Technical Specifications
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| Mounting Type | Plug-in socket | |
|---|---|---|
| Monitored Supply | Three-phase | |
| Monitoring Function | Power / cos φ | |
| Coil / Supply Voltage | 380 V AC, 400 V AC, 415 V AC, 440 V AC, 480 V AC | |
| IP Rating | IP20 | |
| 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 |
Frequently Asked Questions
What is the Carlo Gavazzi PWB03CM4810A used for?
The PWB03CM4810A is used for monitoring active power and power direction in three-phase AC systems and detecting abnormal operating conditions in industrial applications.
What voltage supply does the PWB03CM4810A require?
The Carlo Gavazzi PWB03CM4810A operates from a 380–480 V AC three-phase supply.
What current measurement range does this relay support?
The relay supports measurement up to 10 A directly or through compatible MI current transformers.
What type of output does the relay provide?
The PWB03CM4810A provides a 1 x SPDT change-over relay output for switching and alarm applications.
How is the PWB03CM4810A 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.
