Rotary Isolator Switches for Secure Load & Machinery Isolation
Rotary isolator switches provide safe, visible disconnection for outdoor supplies, machinery, heat pumps, EV chargers and commercial equipment. Designed for emergency shutdown and safe maintenance, they offer reliable isolation under load with clear ON/OFF positions.
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These isolators are built for both single and three-phase installations, with options covering 20A to 100A ratings. Many models include IP65 weatherproof enclosures for outdoor use, making them suitable for heat pumps, air-con units, plant equipment and wall-mounted EV chargers.
- Rotary-operated switching for positive isolation
- Single & three-phase options for domestic and industrial circuits
- IP65 weatherproof models for outdoor installs
- AC22A / AC23A load switching for motor and inductive loads
- Clear ON/OFF position for safe maintenance and emergency shutdown
Rotary isolators are widely used by electricians for equipment isolation where lock-off procedures, visibility of switching status and compliance with UK safety practices are essential.
WRS4P32 – 32A 4 Pole AC Rotary Isolator, IP65
£9.87
The WRS4P32 is a 32A 4 pole AC rotary isolator supplied in a tough IP65-rated enclosure. Designed for safe isolation of single or three-phase AC circuits, it disconnects all live conductors (L1, L2, L3, N) to meet maintenance and emergency safety requirements. Featuring a red/yellow...
WRS4P20 – 20A 4 Pole AC Rotary Isolator, IP65
£9.87
The WRS4P20 is a compact 20A 4 pole AC rotary isolator housed in an IP65 weatherproof enclosure. Designed for safe isolation of single or three-phase AC circuits, it provides secure disconnection of all live conductors (L1, L2, L3, N) during maintenance or in an emergency....
WRS4P125 – 125A 4 Pole AC Rotary Isolator, IP65
£39.30
The WRS4P125 is the largest model in the WCED AC isolator range — a 125A 4 pole rotary isolator supplied in a tough IP65-rated enclosure. It provides secure disconnection of all live conductors (L1, L2, L3, N), ensuring full compliance with BS 7671 isolation requirements...
WRS4P100 – 100A 4 Pole AC Rotary Isolator, IP65
£39.30
The WRS4P100 is a 100A 4 pole AC rotary isolator designed for heavy-duty applications. Supplied in a tough IP65 weatherproof enclosure, it provides reliable disconnection of all live conductors (L1, L2, L3, N), ensuring safe servicing and compliance with BS 7671 and BS EN 60947-3....
What Is a Rotary Isolator Switch?
A rotary isolator is a manually operated switch that disconnects power to a circuit or piece of equipment. Its rotating handle provides a clear, visual indication of isolation, helping prevent accidental energisation during maintenance or fault investigation.
Where Rotary Isolators Are Used
- Heat pumps and outdoor plant equipment
- EV chargers requiring external isolation
- Air conditioning units
- Machinery & workshop tools
- Commercial kitchens
- Industrial control panels
- Outdoor circuits exposed to the elements
IP65 Rotary Isolators
Weatherproof isolators are essential for heat pumps, EV chargers and outdoor equipment. The sealed enclosure protects internal switching components from dust, rain and UV exposure.
AC22A vs AC23A Ratings
AC22A: General load switching – mixed resistive and inductive loads.
AC23A: Motor load switching – higher inrush capacity for compressors, pumps and machinery.
Single vs Three-Phase Rotary Isolators
- Single-phase – ideal for heat pumps, EV chargers and smaller appliances.
- Three-phase – suited to plant equipment, motors, HVAC and commercial installations.
Compliance & Standards
All rotary isolator switches in this category comply with BS EN 60947-3 and support 18th Edition Wiring Regulations when used for local isolation and maintenance switching.
Installer Benefits
Rotary isolators provide safe, clear and reliable disconnection for a huge range of circuits. Their robust build, visible switch position and lock-off capability make them a preferred choice for installers working on outdoor plant, machinery and modern equipment feeds.