5 Pole 100A Auto Resetting MCBs WARB5100C

The WCED WARB5100C is a 5 Pole 100A Auto Resetting MCB designed for advanced three-phase systems where neutral and earth monitoring is required. It combines overload, short-circuit, and voltage monitoring with automatic reset after under-voltage events – reducing downtime on critical installations.

With integrated PME fault protection, the WARD5100C is trusted for EV charging boards, renewable systems with surge protection, and commercial three-phase distribution. Compact and compliant with BS 7671 (18th Edition), it’s built for residential, commercial, and industrial installs requiring maximum safety and reliability.

• 5 Pole, 100A rated – covers 3 phase + N + E protection
• Auto reset after under-voltage; manual reset after over-voltage
• PME fault protection – no earth rod required on TN-C-S supplies
• Overload & short-circuit protection – IEC/EN certified
• Complies with: BS EN 60898-1, BS EN 60947, BS EN 50557
• Dimensions: 107.2mm (W) × 82.4mm (H) × 78.5mm (D)

• Type: Automatic Resetting MCB
• Poles: 5 Pole (3 phase + neutral + earth)
• Rated Current: 100A
• Voltage Monitoring: Trips on <207V or >253V
• Reset: Auto reset after under-voltage; manual reset after over-voltage
• Protection: Overload, short circuit, PME fault monitoring
• Standards: BS EN 60898-1, BS EN 60947, BS EN 50557
• Dimensions (WxHxD): 107.2 x 82.4 x 78.5mm

This unit provides auto-resetting MCB protection for three-phase systems where PME compliance and supply continuity are critical. Installation must be completed by a qualified electrician in accordance with BS 7671.

• DIN rail mountable for fast installation
• Confirm system earthing and voltage before energising
• Manual reset required after over-voltage trips
• Ideal for EV chargers, solar inverters, and industrial loads

What’s the difference between the 3 Pole and 5 Pole auto-reset MCBs?

The 3 Pole WARD3100C is designed for three-phase loads only. The WARD5100C adds neutral and earth monitoring, making it fully PME fault-protected – ideal for EV and renewable installs.

Is this suitable for EV charging and solar systems?

Yes – it’s built for EV charger boards and solar/renewable installs where PME safety, voltage monitoring, and automatic reset functionality are required.

Does it reset automatically?

Yes. It automatically restores supply after under-voltage conditions. After an over-voltage trip, manual reset is required to comply with the 18th Edition Wiring Regulations.

Can this replace a standard MCB?

It can replace standard MCBs in compatible three-phase boards, but is recommended where continuous supply, PME protection, and voltage monitoring are essential.

What standards does it meet?

The WARD5100C complies with BS EN 60898-1, BS EN 60947, and BS EN 50557, ensuring full compliance for auto-reset devices in UK installations.