3 Phase PME Fault Detection Unit 63DRSP (WARB5100C/PME63DRSP)
18th Ed. Compliant
2-Year Warranty
UK Stock
Free Delivery £30+
Secure Payments With
Pre-wired in the UK and built to order – allow up to 3 working days for dispatch. The WARB5100C/PME63DRSP is the flagship 3 Phase PME Fault Detection Unit. It integrates a 100A MCB main switch, PME relay, a 63A Type A RCBO, and a Type 2 SPD. Built for high-demand...
Pre-wired in the UK and built to order – allow up to 3 working days for dispatch.
The WARB5100C/PME63DRSP is the flagship 3 Phase PME Fault Detection Unit. It integrates a 100A MCB main switch, PME relay, a 63A Type A RCBO, and a Type 2 SPD. Built for high-demand EV charging hubs, solar PV systems, and industrial 3-phase supplies, it provides the broadest compliance and protection in the range.
The PME relay continuously monitors all three phases at 400/415V. If undervoltage (below 207V) occurs, the board disconnects and auto-resets once stable. If overvoltage (above 253V) occurs, it isolates and requires a manual reset via the red button. This ensures safe, controlled recovery and compliance with BS7671:2018+A2:2022.
Installer Tip: Choose the 63DRSP model for large commercial EV charger banks or heavy 3-phase renewables where a 40A RCBO isn’t sufficient. It’s the maximum protection available in this series.
Key Features
- PME Fault Detection: Isolates all poles & earth on PEN loss
- 63A Type A RCBO: Handles higher loads with overload + leakage protection
- Type 2 SPD: Suppresses transient surges with visual indicator
- 100A MCB Main Switch: Provides upstream protection and isolation
- Auto Monitoring: Continuous undervoltage & overvoltage detection
- Reset Modes: Auto reset (undervoltage), manual reset (overvoltage)
- Applications: High-load EV charging sites, solar farms, industrial 3-phase systems
Variant Comparison
| Model | Configuration | Best Use Case |
|---|---|---|
| WARB5100C/PME | 100A MCB + PME Relay | Base PME detection only |
| WARB5100C/PMESP | 100A MCB + PME Relay + SPD | PME + surge protection |
| WARB5100C/PME40R | 100A MCB + PME Relay + 40A RCBO | Adds overload & leakage protection |
| WARB5100C/PME40RSP | 100A MCB + PME Relay + 40A RCBO + SPD | Full coverage mid-load installs |
| WARB5100C/PME63DRSP (This Product) | 100A MCB + PME Relay + 63A RCBO + SPD | High-load EV & industrial systems with full protection |
Why choose the 63DRSP model?
It’s the highest-capacity unit in the PME series, handling larger three-phase loads thanks to its 63A RCBO, with surge protection included.
Is this suitable for large EV hubs?
Yes – it’s designed for multi-bay commercial EV charging and high-demand renewable installs where full compliance and resilience are critical.
Do I still need a ground rod?
No – the PME relay eliminates the need for an earth rod, saving installation time and cost.
Does the SPD have a status indicator?
Yes – the Type 2 SPD includes a visual window (green = OK, red = replace).
What standards does this meet?
It complies fully with BS7671:2018+A2:2022 and is tested against BS EN 61439-3.
| Product Code | WARB5100C/PME63DRSP |
| Rated Voltage | 400V / 415V (3 Phase) |
| Main Switch | 100A Curve C MCB (5-pole) |
| RCBO | 63A Type A RCBO |
| Surge Protection | Type 2 SPD (visual indicator) |
| Voltage Monitoring | 207V–253V per phase |
| Reset Functions | Auto reset (undervoltage), Manual reset (overvoltage) |
| Ingress Rating | IP40 (indoor use) |
| Standards | BS EN 61439-3, BS7671:2018+A2:2022 |
| Build Time | 3 working days |
Supplied pre-wired, labelled, and ready for connection. Installation must be completed by a qualified electrician in accordance with BS7671:2018+A2:2022.
- Isolate mains before installation
- Fit with correct gland fittings and torque (2.5Nm)
- Test PME relay, RCBO & SPD operation during commissioning
- Install indoors in a ventilated environment (IP40 rated)
