4 Pole 100A Main Switch
The WCED WMS4100 is a 4 Pole 100A Main Switch designed for safe and reliable isolation of electrical distribution boards. Suitable for both domestic and commercial installs, it provides full disconnection across three phases and neutral, ensuring compliance with UK wiring regulations. Built to withstand 10,000 electrical cycles and 10,000...
The WCED WMS4100 is a 4 Pole 100A Main Switch designed for safe and reliable isolation of electrical distribution boards. Suitable for both domestic and commercial installs, it provides full disconnection across three phases and neutral, ensuring compliance with UK wiring regulations.
Built to withstand 10,000 electrical cycles and 10,000 mechanical operations, this main switch offers long service life in demanding environments. Compact and DIN rail mountable, it’s a trusted choice for use in consumer units, enclosures, and panel boards.
- 4 Pole, 100A rated main switch
- 230/400V AC operational voltage
- 10,000 electrical cycles tested
- 10,000 mechanical operations tested
- DIN rail mountable
- Complies with BS EN 60947-3
- Compact dimensions: 70mm (W) x 82mm (H) x 70mm (D)
What is a 4 pole main switch?
A 4 pole main switch provides isolation for three phases and neutral. It disconnects all conductors simultaneously, ensuring full circuit isolation.
Where is a 4 pole main switch used?
Typically installed in three-phase consumer units, distribution boards, and enclosures as the primary isolator.
What is the difference between a 2 pole and 4 pole main switch?
A 2 pole switch isolates live and neutral in single-phase circuits, while a 4 pole switch isolates three phases and neutral in three-phase systems.
Does this product comply with UK standards?
Yes. The WCED WMS4100 is fully compliant with BS EN 60947-3 and meets UK wiring regulation requirements.
- Type: Main Switch
- Poles: 4 Pole (3 phase + neutral)
- Rated Current: 100A
- Rated Voltage: 230/400V AC
- Electrical Life: 10,000 cycles
- Mechanical Life: 10,000 operations
- Mounting: 35mm DIN rail
- Standards: BS EN 60947-3
- Dimensions (WxHxD): 70 x 82 x 70mm
This main switch is designed for straightforward installation in consumer units, distribution boards, and enclosures. It must be fitted by a qualified electrician in accordance with BS 7671 (18th Edition) requirements.
- Mounts directly on standard 35mm DIN rail
- Ensure adequate clearance for cable terminations
- Use as the incoming isolator in three-phase + neutral boards
- Always test continuity and isolation after installation
