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PPB01CM48 – 480V 3-PH OVER/UNDER VOLT. RLY
Carlo Gavazzi PPB01CM48 is a three-phase voltage monitoring relay for phase loss, phase sequence, overvoltage and undervoltage monitoring on 380–480 V AC industrial power systems.
£137.32
Why Choose the Carlo Gavazzi PPB01CM48 3-Phase Voltage Monitoring Relay?
The Carlo Gavazzi PPB01CM48 is a reliable three-phase voltage monitoring relay designed to monitor industrial electrical supplies for phase loss, incorrect phase sequence, overvoltage and undervoltage conditions. As part of the proven Carlo Gavazzi PPB01 monitoring relay series, it provides dependable supervision of three-phase power systems where accurate voltage monitoring is essential.
The relay is designed for 380–480 V AC three-phase systems and operates at 50–60 Hz. Its monitoring functions help identify abnormal supply conditions and provide a relay output for use within machine control, alarm and protection circuits. Adjustable voltage thresholds and an adjustable alarm delay allow the relay to be configured for different industrial applications.
The PPB01CM48 uses a compact 36 mm wide plug-in housing and is designed for installation using a compatible socket. With an SPDT relay output rated up to 8 A at 250 V AC, it provides a practical interface between three-phase supply monitoring and downstream control equipment.
Key Advantages
- Reliable three-phase voltage monitoring relay for industrial power systems.
- Monitors phase loss, phase sequence, overvoltage and undervoltage.
- Designed for 380–480 V AC three-phase supplies.
- Suitable for 50–60 Hz industrial power systems.
- Adjustable under and overvoltage monitoring thresholds.
- Adjustable alarm delay from 0.1 s to 30 s.
- SPDT electromechanical relay output for control and alarm circuits.
Key Features
- Carlo Gavazzi PPB01 three-phase voltage monitoring relay series.
- 380–480 V AC nominal voltage range.
- 50–60 Hz frequency range.
- Three-phase voltage monitoring for industrial electrical systems.
- Phase loss and phase sequence monitoring.
- Separate overvoltage and undervoltage monitoring.
- Adjustable voltage thresholds from 2% to 22% of nominal voltage.
- Adjustable alarm delay from 0.1 s to 30 s.
- SPDT relay output.
- Compact 36 mm plug-in housing.
- LED indication for power, alarm and relay status.
Reliable Three-Phase Power Monitoring for Industrial Systems
Three-phase voltage monitoring relays continuously supervise electrical supplies and provide a control response when abnormal voltage or phase conditions are detected. This helps automation systems identify supply faults before they can adversely affect connected machinery, motors and electrical equipment.
The Carlo Gavazzi PPB01CM48 measures its own three-phase supply and monitors the voltage level against separately adjustable upper and lower limits. Its phase sequence and phase loss monitoring functions, together with configurable alarm delay, make it suitable for industrial control panels, machinery and electrical protection systems.
Typical Applications
- Industrial three-phase power supply monitoring.
- Motor and transformer protection systems.
- Industrial control panels and automation equipment.
- Pumps, compressors and HVAC systems.
- Machine tools and production machinery.
- Material handling and manufacturing equipment.
- Electrical alarm and protection circuits.
- OEM machinery and industrial automation systems.
Technical Specifications
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| Mounting Type | Plug-in socket | |
|---|---|---|
| Monitoring Function | Three-phase supply | |
| Monitored Supply | Three-phase | |
| Signal / Input Range | 323–550 V AC | |
| Time Delay | Adjustable | |
| IP Rating | IP20 | |
| Manufacturer | Carlo Gavazzi | |
| Series | PPB01 | |
| Model | PPB01CM48 | |
| Product type | Three-phase voltage monitoring relay | |
| Monitoring functions | Phase loss, phase sequence, overvoltage and undervoltage | |
| Nominal voltage range | 380–480 V AC | |
| Measuring range | 323–550 V AC | |
| Input frequency | 50–60 Hz | |
| Input configuration | 3-phase or 3-phase + neutral | |
| Undervoltage adjustment | −2% to −22% | |
| Overvoltage adjustment | +2% to +22% | |
| Alarm delay | 0.1–30 s | |
| Output | 1 × SPDT electromechanical relay | |
| Relay contact rating | 8 A at 250 V AC, AC1 | |
| Power consumption | approx. 13 VA at 400 V AC, 50 Hz | |
| Mounting | Plug-in socket mounting | |
| Housing width | 36 mm | |
| Dimensions (H × W × D) | 80 × 36 × 94 mm | |
| Protection rating | IP20 | |
| Operating temperature | −20 to +60 °C | |
| Weight | approx. 150 g | |
| EAN | 8030956001013 |
Frequently Asked Questions
What is the Carlo Gavazzi PPB01CM48 used for?
The PPB01CM48 monitors three-phase electrical supplies for phase loss, incorrect phase sequence, overvoltage and undervoltage conditions.
What voltage range does the PPB01CM48 monitor?
The relay is designed for nominal three-phase voltages from 380 V to 480 V AC, with a measuring range extending from approximately 323 V to 550 V AC.
What frequency does the PPB01CM48 support?
The PPB01CM48 is designed for three-phase supplies operating at 50–60 Hz.
Can the voltage thresholds be adjusted?
Yes. The undervoltage and overvoltage thresholds can be adjusted independently from approximately 2% to 22% of the selected nominal voltage.
What type of relay output does the PPB01CM48 provide?
The PPB01CM48 provides one SPDT electromechanical relay output, rated up to 8 A at 250 V AC under AC1 conditions.
Trusted by Industrial Automation Engineers Worldwide
Carlo Gavazzi PPB01 voltage monitoring relays provide dependable supervision of three-phase power supplies, helping automation engineers detect phase and voltage faults across industrial machinery, control panels and electrical installations.
