3 Pole 100A Auto Resetting MCBs WARD3100C
The WCED WARD3100C is a 3 Pole 100A Auto Resetting MCB designed for advanced circuit protection where uptime is critical. Unlike a standard MCB, this device automatically restores supply after safe conditions are re-established – reducing downtime and avoiding unnecessary site visits. Engineered for EV charging circuits, renewable systems with...
The WCED WARD3100C is a 3 Pole 100A Auto Resetting MCB designed for advanced circuit protection where uptime is critical. Unlike a standard MCB, this device automatically restores supply after safe conditions are re-established – reducing downtime and avoiding unnecessary site visits.
Engineered for EV charging circuits, renewable systems with surge protection, and PME installs, it provides overload and short-circuit protection alongside under/over-voltage monitoring. Compact and durable, the WARD3100C ensures compliance with BS 7671 (18th Edition) for residential, commercial, and light industrial boards.
- 3 Pole, 100A rated – built for high-load three-phase installs
- Auto-reset after under-voltage events – restores supply automatically
- Manual reset after over-voltage trips – ensures safe reconnection
- Integrated PME fault protection – no earth rod required for EV charger installs
- Protects against overload & short circuit – IEC/EN compliant design
- Standards: BS EN 60898-1, BS EN 60947, BS EN 50557
- Compact size: 71.2mm (W) × 82.4mm (H) × 78.5mm (D)
Note: Image is representative (5 pole version shown). Actual supplied product is the 3 pole 100A model.
What makes an auto-reset MCB different from a standard breaker?
A standard MCB requires manual resetting after a fault. An auto-reset model like the WARD3100C restores supply automatically after under-voltage conditions, minimising downtime and service calls.
Does this device provide PME protection?
Yes – it includes PME fault detection, making it ideal for EV charger installs on TN-C-S supplies where a separate earth rod is not required.
When is manual reset required?
Manual reset is required after over-voltage trips to ensure circuits are checked and safely reconnected in line with the 18th Edition Wiring Regulations.
Is it suitable for EV and solar applications?
Yes – the WARD3100C is built for EV charging boards and solar PV/renewable systems, where voltage monitoring, auto-reset functionality, and PME safety are critical.
Can this replace a standard MCB in any board?
It can replace standard devices in compatible boards, but is best used in specialist setups needing auto reset, PME protection, and voltage monitoring.
- Type: Automatic Resetting MCB
- Poles: 3 Pole
- Rated Current: 100A
- Voltage Monitoring: Disconnects at <207V or >253V
- Reset: Automatic after under-voltage, manual after over-voltage
- Protection: Overload and short circuit
- Standards: BS EN 60898-1, BS EN 60947, BS EN 50557
- Dimensions (WxHxD): 71.2 x 82.4 x 78.5mm
This auto-reset MCB must be installed by a qualified electrician in accordance with BS 7671. It is particularly suited to EV, solar, and PME applications where continuous protection and reduced downtime are critical.
- Mount on standard 35mm DIN rail
- Ensure correct polarity and secure terminations
- Confirm system voltage and earthing arrangement before energising
- Manual reset is required after over-voltage trips for safety compliance
