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Switch Fuses - Isolators

Fuse Switches

Fuse Switches (17)

Main Switches

Main Switches (41)

Solar DC Isolators

Solar DC Isolators (8)

Rotary Isolators

Rotary Isolators (42)

TP&N Three Phase Isolators

TP&N Three Phase Isolators (15)

Three Phase Fused Switches

Three Phase Fused Switches (42)

Change Over Switches

Change Over Switches (18)

Electrical Cut Outs

Electrical Cut Outs (4)

Showing 81–100 of 175 results

Live Electrical MCFS100 Live Electrical 125A Fused Switch With Metal Lid 1Live Electrical MCFS100 Live Electrical 125A Fused Switch With Metal Lid 2

Live Electrical 125A Fused Switch With Metal Lid
Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
Read More
SKU: MCFS100
£25.90
Garo SIDC432IP65 32A 4 Pole DC Rotary IsolatorGaro SIDC432IP65 32A 4 Pole DC Rotary Isolator 2

Garo SIDC432IP65 32A 4 Pole DC Rotary Isolator
Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
Read More
SKU: SIDC432IP65
Quantity Discount
Quantity Price
1 - 2 £18.95
3+ £18.57
5+ £18.00
10+ £17.06
£18.95
Live Electrical RI425 4 Pole 25A Rotary Isolator Switch

Live Electrical RI425 4 Pole 25A Rotary Isolator Switch
Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
Read More
SKU: RI425
£10.80
MS2100B 2 Pole 100A Main Switch Double Terminal

Live Electrical | MS2100B | 2 Pole Main Switch | 100A Double Terminal Busbar Compatible
Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
Read More
SKU: MS2100B
£8.44
Garo DSV2100 100A Double Pole Main Switch

Garo DSV2100 100A Double Pole Main Switch
Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
Read More
SKU: DSV2100
£4.50
WCED 4 Pole Twin Screw Main Switch

WCED | WIS4100 | 100A | 4 Pole | Twin Screw Main Switch Isolator
Available to Order
Estimated Lead Time:
Usually 1 - 2 Working Days
Read More
SKU: WIS4100
£13.09
WCED WRI3P63 63A DIN Rail Rotary Isolator SwitchWCED | WRI3P63 | 63A | 3 Pole | DIN Rail Rotary Isolator Switch

WCED | WRI3P63 | 63A | 3 Pole | DIN Rail Rotary Isolator Switch
Available to Order
Estimated Lead Time:
Usually 1 - 2 Working Days
Read More
SKU: WRI3P63
£17.49
Live Electrical RI20DC Live Electrical 4 Pole 20A DC Rotary Isolator Switch 1Live Electrical RI20DC Live Electrical 4 Pole 20A DC Rotary Isolator Switch 2

Live Electrical RI20DC 4 Pole 20A DC Rotary Isolator Switch
Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
Read More
SKU: RI20DC
£20.99 £16.10
Garo SIDC416IP65 16A 4 Pole DC Rotary IsolatorGaro SIDC416IP65 16A 4 Pole DC Rotary Isolator

Garo SIDC416IP65 16A 4 Pole DC Rotary Isolator
Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
Read More
SKU: SIDC416IP65
Quantity Discount
Quantity Price
1 - 2 £16.85
3+ £16.51
5+ £16.01
10+ £15.17
£16.85
Hager SBN240 Hager SBN240 40A Double Pole Isolator

Hager SBN240 40A Double Pole Isolator
Available to Order
Estimated Lead Time:
Usually 2 - 4 Working Days
Read More
SKU: SBN240
£28.88
Live Electrical RI4100 100A Weatherproof Rotary Isolator Switch 4 Pole 1Live Electrical RI4100 100A Weatherproof Rotary Isolator Switch 4 Pole 2

Live Electrical RI4100 100A 4 Pole IP65 Rotary Isolator Switch
Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
Read More
SKU: RI4100
£39.99
Live Electrical CS3P25 Live Electrical 3 Pole 25A Changeover Switch 1Live Electrical CS3P25 Live Electrical 3 Pole 25A Changeover Switch 2

Live Electrical CS3P25 3 Pole 25A Changeover Switch
Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
Read More
SKU: CS3P25
£23.90
Garo 200A Metal Clad Isolator

Garo GSW4200IP55M Metal Clad IP55 200A 4 Pole Isolator
Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
Read More
SKU: GSW4200IP55M
£230.85
Live Electrical MS2125D 2 Pole 125A Double Terminal Main Switch

Live Electrical MS2125D 2 Pole 125A Double Terminal Main Switch
Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
Read More
SKU: MS2125D
£6.12
Live Electrical MFS125 125A Interlocked Fused Switch

Live Electrical | MFS125 | 125A Metal Interlocked Fused Switch | IP20 | 3 Pole + Neutral
Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
Read More
SKU: MFS125
£127.32
Live Electrical MS3125D 3 Pole 125A Double Terminal Main Switch

Live Electrical MS3125D 3 Pole 125A Double Terminal Main Switch
Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
Read More
SKU: MS3125D
£10.37
FuseBox 80A 3P+N IP65 Metal Fused Switch

FuseBox | TPNFS080 | 3P+N | IP65 Metal Fused Switch | 80A
Available to Order
Estimated Lead Time:
Usually 2 - 4 Working Days
Read More
SKU: TPNFS080
£100.16
FuseBox 100A 3P+N IP65 Metal Fused Switch

FuseBox | TPNFS100 | 3P+N | IP65 Metal Fused Switch | 100A
Available to Order
Estimated Lead Time:
Usually 2 - 4 Working Days
Read More
SKU: TPNFS100
£117.48
Live Electrical MS4125D 4 Pole 125A Double Terminal Main Switch

Live Electrical MS4125D 4 Pole 125A Double Terminal Main Switch
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
SKU: MS4125D
£12.66
Niglon ISS324P Steel 32A 4 Pole Rotary Isolator – IP65-rated switch for commercial and light industrial systems.

Niglon ISS324P Stainless Steel 32A 4P IP65 Rotary Isolator
Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
Read More
SKU: ISS324P
£104.20

Showing 81–100 of 175 results

Electrical Isolators for Safe Power Isolation

Electrical isolators are used to disconnect a circuit or item of equipment from the electrical supply. They are commonly installed where safe local isolation is required for maintenance, inspection, emergency switching or equipment control.

This category includes switch fuses, main switches, load switches, rotary isolators, TP&N isolators, changeover switches and electrical cut outs. The correct isolator should be selected based on the supply type, current rating, number of poles, enclosure rating and the equipment being isolated.

Choosing the Right Electrical Isolator

When choosing an electrical isolator, check the current rating, voltage rating, pole configuration and whether the unit is suitable for indoor or outdoor use. Some installations may require a fused isolator, while others may require a rotary isolator, main switch or changeover switch depending on the circuit design.

  • Use the correct current rating for the connected load.
  • Check whether single-phase or three-phase isolation is required.
  • Choose a suitable enclosure for the installation environment.
  • Confirm whether fused or non-fused isolation is needed.
  • Follow the manufacturer’s instructions and current wiring regulations.

Common Types of Isolator Switches

Switch Fuses

Switch fuses combine isolation with fuse protection and are often used for submains, distribution circuits and equipment supplies where fused protection is required.

Main Switches

Main switches are used to isolate circuits or sections of an installation and are commonly found in consumer units, distribution boards and control panels.

Rotary Isolators

Rotary isolators provide manual switching and isolation for machinery, motors, HVAC equipment, outdoor equipment and commercial installations.

TP&N Isolators

TP&N isolators are used for three-phase and neutral supplies, making them suitable for commercial and industrial electrical installations.

Changeover Switches

Changeover switches are used where a supply needs to be switched between two sources, subject to the installation design and equipment requirements.

Related Consumer Units

Some isolators and main switches are used as part of wider circuit protection and distribution board installations. For complete board options, view our main consumer units range and always check compatibility with the installation design and manufacturer requirements.

Installation Notes

Electrical isolators should be selected and installed by a qualified electrician. The installer should confirm the correct rating, cable size, enclosure type, fault protection, earthing arrangement and isolation requirements before installation.

Electrical Isolators FAQs

What is an electrical isolator used for?

An electrical isolator is used to disconnect power from a circuit, item of equipment or section of an installation so that work can be carried out safely.

What is the difference between an isolator and a switch fuse?

An isolator provides switching and isolation. A switch fuse provides isolation and includes fuses for circuit protection, where required by the installation design.

Can electrical isolators be used outside?

Some electrical isolators are suitable for outdoor use, depending on their enclosure rating and installation method. Always check the individual product specification before ordering.

Who should install an electrical isolator?

Electrical isolators should be installed by a qualified electrician who can confirm the correct product type, rating and installation requirements.






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To ensure your order qualifies for next day delivery, please place your order by 3:00 PM. This is subject to all items being available on the shelf at the time of your order. For orders where the total value exceeds £200 + VAT (double our standard carriage-paid order value of £100 + VAT), we are happy to split the delivery into two shipments if some items are needed urgently and others are not immediately available. If you have any questions or need further assistance, feel free to reach out to us via WhatsApp for live support. We’re here to help!

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This item may be sourced from our supplier before dispatch.
The lead time shown is an estimate only and is based on the usual supplier timeframe. It is subject to supplier availability and is not a guaranteed delivery date.
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Delivery info

Orders containing only Live Electrical products that are not available from our shelf stock will usually be dispatched directly from Live Electrical. Delivery is generally completed within 2–3 working days, although stock availability, order cut-off times and courier schedules may affect the timing.

For mixed orders containing products from other suppliers, dispatch arrangements may vary, and the order may follow the longest delivery estimate shown.

In the unlikely event that an item becomes unavailable, we will contact you with the available options, which may include waiting for stock, choosing an alternative product or cancelling the unavailable item for a refund.

Delivery info

GARO items that are not available from our shelf stock will usually be ordered directly from GARO and dispatched as soon as they arrive with us. Delivery is generally completed within 2–3 working days, although stock availability, order cut-off times and courier schedules may affect the timing.

For mixed orders containing products from other suppliers, dispatch arrangements may vary, and the order may follow the longest delivery estimate shown.

In the unlikely event that an item becomes unavailable, we will contact you with the available options, which may include waiting for stock, choosing an alternative product or cancelling the unavailable item for a refund.

Delivery info

Where an order contains only WCED products that are not available from our shelf stock, it will usually be dispatched directly from WCED. Delivery often takes 1–2 working days, although stock availability, order cut-off times and courier schedules may affect the timing.

For mixed orders containing products from other suppliers, the dispatch arrangement and delivery time may vary, and the order may follow the longest lead time shown.

Delivery info

Hager items that are not available from our shelf stock will usually be ordered directly from Hager and dispatched as soon as they arrive with us. Delivery is generally completed within 2–4 working days, although stock availability, order cut-off times and courier schedules may affect the timing.

For mixed orders containing products from other suppliers, dispatch arrangements may vary, and the order may follow the longest delivery estimate shown.

In the unlikely event that an item becomes unavailable, we will contact you with the available options, which may include waiting for stock, choosing an alternative product or cancelling the unavailable item for a refund.

Delivery info

If this item is not currently on our shelves, we will order it from FuseBox for delivery to our warehouse. FuseBox does not dispatch directly to our customers, so once the item arrives with us, we will send it on to you as quickly as possible. Many items reach us the next working day, while some may take a little longer. Delivery to you is usually completed within 2–4 working days.

Please note that if your order includes other products with a longer lead time, the complete order may be dispatched once all items are available.

In the unlikely event that an item becomes unavailable, we will contact you with the available options, which may include waiting for stock, choosing an alternative product or cancelling the unavailable item for a refund.

Delivery info

If this item is not currently available from our shelf stock, we will order it directly from Niglon and dispatch it as soon as it arrives with us. Delivery is usually completed within 2–3 working days.

Please note that if your order includes other products with a longer lead time, the complete order may be dispatched once all items are available.

In the unlikely event that an item becomes unavailable, we will contact you with the available options, which may include waiting for stock, choosing an alternative product or cancelling the unavailable item for a refund.

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