Emas RR3VP02 is a DIN rail three-phase analogue voltage protection relay with adjustable 150–210 V AC under-voltage and 240–300 V AC over-voltage thresholds, phase monitoring and a 1CO 10 A / 250 V AC output.
£54.66
The Emas RR3VP02 is a compact three-phase analogue voltage protection relay designed to monitor industrial electrical supplies and protect connected equipment against abnormal voltage conditions. As part of the Emas RR3 Series, it combines adjustable under-voltage and over-voltage thresholds with phase sequence and phase loss monitoring for dependable protection of three-phase machinery and control systems.
The RR3VP02 allows the low-voltage threshold to be adjusted from 150–210 V AC and the high-voltage threshold from 240–300 V AC. An adjustable 0.1–20 s delay-off period helps prevent unnecessary switching caused by brief supply disturbances, while a fixed 5 V hysteresis supports stable relay operation around the selected voltage thresholds.
Operating from a 230 V AC, 50/60 Hz supply, the RR3VP02 provides a 1CO changeover relay output rated at 10 A / 250 V AC for resistive loads. Its compact DIN rail mounted, fingerproof construction and IP20 protection make it straightforward to integrate into industrial electrical cabinets, motor control panels and automation systems.
Three-phase electrical equipment can be affected by under-voltage, over-voltage, incorrect phase sequence and phase loss. A voltage protection relay continuously monitors the incoming supply and changes the state of its output relay when conditions move outside the selected limits, allowing connected control equipment to disconnect or inhibit machinery before damaging operating conditions persist.
The Emas RR3VP02 combines adjustable 150–210 V AC under-voltage and 240–300 V AC over-voltage thresholds with phase sequence and phase loss monitoring. Its adjustable delay and 5 V hysteresis provide additional control over how the protection system responds to changing supply conditions.
| Manufacturer | Emas |
|---|---|
| Series | RR3 Series |
| Model | RR3VP02 |
| Product type | Three-phase voltage protection electronic relay |
| Control type | Analogue |
| Phase number | Three phase |
| Operational voltage | 230 V AC |
| Operational frequency | 50/60 Hz |
| Low-level voltage setting | Adjustable 150–210 V AC |
| High-level voltage setting | Adjustable 240–300 V AC |
| Delay off | Adjustable 0.1–20 s |
| Hysteresis | 5 V |
| Phase sequence monitoring | Yes |
| Phase loss monitoring | Yes |
| Contact configuration | 1CO changeover |
| Output rating | 10 A / 250 V AC resistive |
| Power consumption | <7 VA |
| Mechanical life | Minimum 10,000,000 operations |
| Electrical life | Minimum 100,000 operations |
| Impulse withstand voltage (Uimp) | 300 V |
| Insulation resistance | Minimum 10 MΩ |
| Operating temperature | -5 to +55 °C |
| Protection rating | IP20 |
| Mounting type | DIN rail mounting |
| Certifications | CE and UKCA |
The RR3VP02 is a three-phase analogue voltage protection relay used to monitor electrical supplies for under-voltage, over-voltage, phase sequence and phase loss conditions in industrial machinery and automation systems.
The RR3VP02 provides an adjustable 150–210 V AC low-voltage setting and an adjustable 240–300 V AC high-voltage setting.
Yes. The RR3VP02 is designed for three-phase monitoring and provides protection against incorrect phase sequence and phase loss as well as abnormal voltage conditions.
The RR3VP02 provides one changeover relay output (1CO) rated at 10 A / 250 V AC for resistive loads.
Yes. The RR3VP02 provides an adjustable 0.1–20 s delay-off setting, allowing the response to supply disturbances to be configured for the application.
Emas RR3 electronic relays provide compact and dependable monitoring for industrial automation systems, with the RR3VP02 combining adjustable under-voltage and over-voltage protection, phase monitoring and a robust 10 A changeover output for three-phase control applications.
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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...