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

This model adds an SPD to the base WARB5100C/PME configuration but does not include a factory-fitted RCBO. Required residual-current protection must therefore be confirmed elsewhere in the completed design.

Installer Tip: Choose this version where the design requires local Type 2 surge protection but provides the necessary RCBO/RCD protection elsewhere. For a factory-fitted 40A RCBO as well, compare the WARB5100C/PME40RSP.

Key Features

  • For one three-phase EV charge point
  • 5-pole 100A MCB with integrated PME relay arrangement
  • Factory-fitted Type 2 SPD
  • 400/415V supply monitoring
  • Linked disconnection of live, neutral and protective conductor
  • No factory-fitted RCBO

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 Factory-Fitted Devices Best Fit
WARB5100C/PME 5-pole 100A MCB PME monitoring
WARB5100C/PMESP (This Product) 5-pole 100A MCB PME monitoring + Type 2 SPD
WARB5100C/PME40R 5-pole 100A MCB + 40A RCBO PME monitoring + RCBO
WARB5100C/PME40RSP 5-pole 100A MCB + 40A RCBO PME monitoring + RCBO + Type 2 SPD
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