CATEGORIES

Main Switches & Rotary Isolator Switches

Shop main switches and rotary isolator switches for consumer units, distribution boards, machinery, HVAC, EV chargers, garages and outdoor circuits.

Choose the device around its switching function, rated current, poles, utilization category, enclosure, locking requirement and whether it is suitable for isolation.

Quick guide: Main switches are commonly installed within boards; rotary isolators provide local disconnection near equipment. Product markings and manufacturer data determine whether a specific device is suitable for the intended isolation duty.

  • Board-mounted main switches: incoming isolation within compatible assemblies
  • Rotary isolators: local disconnection near equipment or circuits
  • Single and three-phase options: pole configurations for different supplies
  • Enclosed and lockable devices: products for defined maintenance and environmental needs
Showing 1 to 12 of 17 items
✓ In stock SKU: WMS2100

2 Pole 100A Main Switch (WMS2100)

£6.70 ex VAT £8.04 inc VAT

The WMS2100 2 Pole 100A Main Switch is a BS EN 60947-3 compliant main switch isolator designed for safe isolation of single-phase electrical supplies....

✓ In stock SKU: WFIS100

Fused Main Switch - WFIS100

£19.45 ex VAT £23.34 inc VAT

The WFIS100 is a compact, insulated fused main switch rated at 100A AC21 - designed for safe isolation and protection of incoming supplies. Supplied...

✓ In stock SKU: WMS4100

4 Pole 100A Main Switch (WMS4100)

£9.95 ex VAT £11.94 inc VAT

The WMS4100 is a 4 pole 100A main switch designed for safe isolation in three-phase electrical systems. Part of the Whitecliffe WMS range, this...

✓ In stock SKU: WIS2100

Twin Screw 100A Main Switch 2 Pole WIS2100

£10.90 ex VAT £13.08 inc VATWas £17.33 ex VAT

The WIS2100 2-Pole 100A Main Switch provides safe and reliable isolation for residential, commercial, and light industrial electrical systems. Designed with twin screw terminals...

Main Switch or Rotary Isolator?

The correct choice follows the device location and duty. A board-mounted main switch provides incoming isolation for an assembly. A rotary isolator is commonly positioned locally so equipment can be disconnected for work or maintenance. Confirm suitability from the product markings and datasheet.

Main Switches

Typically installed in a consumer unit or distribution board. Check assembly compatibility, rated current, poles, terminal capacity and switching function.

Browse consumer units →

Rotary Isolators

Provide visible local switching near machinery, HVAC, EV equipment or outbuilding supplies. Select the utilization category, poles and enclosure for the load and environment.

Shop rotary isolators →

Meter & Supply Isolation

Isolation at the meter position has different ownership and installation considerations from a standard board main switch or equipment isolator.

Shop meter isolators →

Specification Checklist

  • Function: confirm isolation, switching or maintenance duty.
  • Load: select current rating and utilization category for the equipment.
  • Poles: determine which live conductors must be switched.
  • Environment: check enclosure, IP rating and mounting position.
  • Safe maintenance: assess locking and prevention of unintended re-energisation.

Supporting Guides

Related Categories

Rotary IsolatorsMeter IsolatorsConsumer UnitsThree PhaseEnclosures

Before ordering: confirm the device is rated and marked for the intended switching or isolation function, load, pole configuration and environment.