3 Phase PME Unit with 40A RCBO & SPD (WARB5100C/PME40RSP)

Pre-wired in the UK and tested before dispatch – allow up to 3 working days for shipping.

The WARB5100C/PME40RSP is a 3 phase PME fault detection unit with a 40A RCBO and Type 2 SPD for one compatible three-phase EV charge point. It combines a 5-pole 100A MCB, PME monitoring, a factory-fitted 40A RCBO and surge protection in one pre-wired IP40 enclosure.

This is the most fully equipped of the four currently documented WARB configurations. The exact RCBO characteristics and suitability for the selected charger must still be confirmed from the supplied device and manufacturer documentation.

Key Features

• For one three-phase EV charge point
• 5-pole 100A MCB with integrated PME relay arrangement
• Factory-fitted 40A RCBO
• Factory-fitted Type 2 SPD
• 400/415V supply monitoring
• Linked disconnection of live, neutral and protective conductor

How the PME Monitoring Works

The unit monitors the three-phase supply against the manufacturer’s stated voltage thresholds. If any phase falls below 207V or rises above 253V under the specified fault conditions, the linked switching arrangement disconnects live, neutral and the protective conductor.

Under-voltage recovery is automatic when the supply returns to the normal operating range. Following an over-voltage operation, the unit requires manual reset in accordance with the manufacturer’s instructions.

Final selection must be based on the charger, supply, fault level, earthing arrangement and required residual-current and surge protection. Installation and verification must be completed by a suitably qualified person to the current edition of BS 7671.

Compare 3 Phase PME Unit Variants

• Model: WARB5100C/PME40RSP
• Application: One three-phase EV charge point
• Rated voltage: 400/415V AC
• Frequency: 50Hz
• Factory-fitted MCB: 5-pole 100A
• Factory-fitted RCBO: 40A; confirm detailed characteristics from the supplied device
• Surge protection: Type 2 SPD
• PME monitoring thresholds: below 207V or above 253V on any phase
• Fault switching: Live, neutral and protective conductor
• Reset: Automatic after under-voltage recovery; manual after over-voltage operation
• Enclosure: IP40
• Assembly standard: BS EN 61439-3

The WARB5100C/PME40RSP is supplied pre-wired and tested. Installation and commissioning must be completed by a suitably qualified person.

• Confirm the unit is being applied to one compatible three-phase EV charge point.
• Check the exact RCBO type, residual-current rating and charger requirements from the supplied device documentation.
• Coordinate the 100A MCB, 40A RCBO, conductors, supply and prospective fault current.
• Connect the SPD earth path as directly as practicable in accordance with the manufacturer’s instructions.
• Test PME isolation, RCBO operation, SPD status and reset modes during commissioning.

What is included in PME40RSP?

It includes a 5-pole 100A MCB, PME monitoring, a factory-fitted 40A RCBO and a Type 2 SPD.

What is the difference between 40R and 40RSP?

Both include the 40A RCBO. The 40RSP also includes a factory-fitted Type 2 SPD.

What type of RCBO is fitted?

The current range identifies a 40A RCBO but does not provide every characteristic in the product table. Confirm the exact device markings and documentation before specification.

How many EV chargers is it intended to serve?

The manufacturer describes this WARB unit family for one three-phase charge point.

Can it avoid a separate earth electrode?

The PME monitoring arrangement is designed for EV charging installations using automatic disconnection. Suitability must still be confirmed for the particular installation.