Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
PPB02CM23 – 240V 3-PH ASYMMETRY RLY
Carlo Gavazzi PPB02CM23 is a True RMS three-phase monitoring relay for phase loss, phase sequence and voltage asymmetry on 208–240 V AC industrial power systems.
£137.32
Why Choose the Carlo Gavazzi PPB02CM23 3-Phase Monitoring Relay?
The Carlo Gavazzi PPB02CM23 is a compact and reliable three-phase voltage monitoring relay designed to monitor industrial electrical supplies for phase loss, incorrect phase sequence and voltage asymmetry. As part of the Carlo Gavazzi PPB02 monitoring relay series, it provides dependable three-phase mains supervision for industrial automation, machinery and electrical control systems.
The relay is designed for 208–240 V AC three-phase supplies and operates at 50–60 Hz. It monitors three-phase systems with either three wires or four wires and is powered directly from the monitored mains. Adjustable voltage asymmetry monitoring and an alarm delay help the relay distinguish genuine supply faults from short-duration disturbances.
The PPB02CM23 uses a compact 36 mm plug-in housing and provides a changeover SPDT relay output for integration with machine control and alarm circuits. Its True RMS measurement and high harmonic immunity make it suitable for industrial environments where electrical noise and distorted waveforms may otherwise affect monitoring performance.
Key Advantages
- Reliable three-phase mains monitoring relay for industrial applications.
- Detects phase loss, phase sequence and voltage asymmetry.
- Designed for 208–240 V AC three-phase systems.
- True RMS measurement provides accurate monitoring of the supply.
- Adjustable voltage asymmetry threshold for flexible fault detection.
- Adjustable alarm delay up to 30 s helps reduce nuisance tripping.
- SPDT changeover relay output for control and alarm applications.
Key Features
- Carlo Gavazzi PPB02 three-phase monitoring relay series.
- 208–240 V AC nominal three-phase voltage range.
- 50–60 Hz operating frequency.
- True RMS three-phase voltage measurement.
- Phase sequence detection.
- Phase loss detection.
- Voltage asymmetry monitoring.
- Adjustable voltage asymmetry setpoint.
- Adjustable alarm time delay up to 30 s.
- SPDT changeover relay output.
- Regenerated voltage detection.
- High harmonic immunity for electrically noisy environments.
- Compact 36 mm plug-in housing.
Reliable Three-Phase Power Monitoring for Industrial Systems
Three-phase monitoring relays continuously supervise electrical supplies and provide a control response when abnormal phase or voltage conditions are detected. This helps automation systems identify missing phases, incorrect phase sequence and excessive voltage imbalance before these conditions can adversely affect connected machinery.
The Carlo Gavazzi PPB02CM23 monitors the three-phase mains using True RMS measurement and can operate on both three-wire and four-wire systems. Its adjustable asymmetry setpoint and configurable time delay provide flexible monitoring for industrial control panels, motor systems and production machinery.
Typical Applications
- Industrial three-phase power supply monitoring.
- Motor and transformer protection systems.
- Industrial control panels and automation equipment.
- Machine tools and production machinery.
- Pumps, compressors and HVAC equipment.
- Packaging and manufacturing systems.
- Electrical alarm and protection circuits.
- OEM machinery and industrial automation systems.
Technical Specifications
Tick the specs you need, then view products that match.
| Mounting Type | Plug-in socket | |
|---|---|---|
| Monitored Supply | Three-phase | |
| Time Delay | Fixed | |
| Monitoring Function | Three-phase supply | |
| IP Rating | IP20 | |
| Manufacturer | Carlo Gavazzi | |
| Series | PPB02 | |
| Model | PPB02CM23 | |
| Product type | True RMS 3-phase voltage monitoring relay | |
| Monitoring functions | Phase sequence, phase loss and voltage asymmetry | |
| Nominal voltage range | 208–240 V AC | |
| Supply voltage tolerance | ±15% | |
| Operating voltage range | 177–276 V AC | |
| Input frequency | 50–60 Hz | |
| System configuration | 3-phase or 3-phase + neutral | |
| Power supply | Supplied by the monitored mains | |
| Power consumption | <2.5 VA | |
| Power-on delay | 1 s ± 0.5 s or 6 s ± 0.5 s | |
| Alarm delay | Up to 30 s | |
| Output | 1 × SPDT changeover relay | |
| Mounting | Plug-in | |
| Housing width | 36 mm | |
| Protection rating | IP20 | |
| Setting method | Front adjustment | |
| NFC setting | No | |
| Approvals | Europe, North America and Australia | |
| EAN | 8030956001020 |
Frequently Asked Questions
What is the Carlo Gavazzi PPB02CM23 used for?
The PPB02CM23 monitors three-phase electrical supplies for phase loss, incorrect phase sequence and voltage asymmetry.
What voltage range does the PPB02CM23 monitor?
The relay is designed for nominal three-phase voltages from 208 V to 240 V AC, with a supply operating range of approximately 177 V to 276 V AC.
What frequency does the PPB02CM23 support?
The PPB02CM23 is designed for three-phase supplies operating at 50–60 Hz.
Can the voltage asymmetry monitoring be adjusted?
Yes. The PPB02CM23 provides an adjustable voltage asymmetry setpoint, allowing the monitoring relay to be configured for the required application.
What type of relay output does the PPB02CM23 provide?
The PPB02CM23 provides one SPDT changeover relay output for connection to machine control, alarm and protection circuits.
Trusted by Industrial Automation Engineers Worldwide
Carlo Gavazzi PPB02 monitoring relays provide dependable three-phase mains supervision, helping automation engineers detect phase and voltage faults across industrial machinery, control panels and electrical installations.
