Twin Screw 100A Main Switch 4 Pole WIS4100
The WIS4100 is a robust 4 pole 100A main switch built with twin screw terminals for a secure, reliable connection. Designed for isolating circuits in domestic and light commercial boards, it's suitable for both single-phase and three-phase applications. With a compact footprint and clear colour-coded handle, it offers easy integration...
The WIS4100 is a robust 4 pole 100A main switch built with twin screw terminals for a secure, reliable connection. Designed for isolating circuits in domestic and light commercial boards, it's suitable for both single-phase and three-phase applications.
With a compact footprint and clear colour-coded handle, it offers easy integration into your distribution setup - especially where 18th Edition compliance and fast fit-outs matter.
- 100A rated, suitable for isolating full board loads
- 4 pole configuration – handles all live and neutral conductors
- Twin screw terminals for secure cable clamping and reduced risk of loosening
- Colour-coded handle for visual clarity on power state
- Compact dimensions: 70mm (W) x 103mm (H) x 65mm (D)
What does a 4 pole main switch do?
A 4 pole switch isolates all live and neutral conductors in a circuit. It’s typically used in three-phase boards to safely disconnect all phases and neutral simultaneously.
Is this suitable for domestic boards?
Yes, it's commonly used in domestic and light commercial boards requiring full isolation. Just ensure your board supports 4 pole devices.
Are the terminals secure for larger tails?
Yes - the twin screw terminals provide solid clamping and are compatible with standard tails used in 100A boards.
Can I use this in single-phase setups?
Yes. While it's a 4 pole switch, it can be used to isolate live, neutral, and other conductors in single-phase applications where full disconnection is needed.
- Product Code: WIS4100
- Rated Current: 100A
- Voltage: 230V AC (2P) / 400V AC (4P)
- Poles: 4 pole
- Terminals: Twin screw terminal (top & bottom)
- Handle: Colour coded for ON/OFF status
- Mounting: DIN rail mountable
- Dimensions (W x H x D): 70 x 103 x 65mm
- Conformity: IEC 60947-3 compliant
This main switch is DIN rail mounted and designed for quick fit-outs in consumer units and distribution boards. Always isolate power before installation.
- Ensure cable terminations are fully tightened into twin screw terminals
- Position on the main busbar at the head of the board
- Suitable for both single-phase and three-phase board configurations
- Use in ventilated enclosures to avoid overheating
