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RCD - Residual Current Device

Looking for RCDs? We stock a wide range of Residual Current Devices to suit every type of installation — from standard domestic boards to EV chargers and heat pumps. Choose from Type A, B, and F RCDs, with 2 or 4 pole models available. We only supply trusted UK electrical brands like Hager, FuseBox, Live Electrical, Garo, and Niglon. In stock and ready for fast delivery.

Showing 1–20 of 93 results

FuseBox RTB630302M 63A Double Pole Type B RCD

1 In Stock
More available within:
Usually 2 - 4 Working Days
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SKU: RTB630302M
£114.00

Fusebox RTA1001002 2 Pole 100A 100mA Type A RCD

2 In Stock
More available within:
Usually 2 - 4 Working Days
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SKU: RTA1001002
£24.05

Fusebox RTA0630304 63A 4 Pole 30mA Type A RCD

1 In Stock
More available within:
Usually 2 - 4 Working Days
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SKU: RTA0630304
£21.78

Live Electrical | RTA2100-100 | 2 Pole | Time Delay Type A RCD | 6kA | 100mA | 100A

1 In Stock
More available within:
Usually 2 - 3 Working Days
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SKU: RTA2100-100
£28.50

Hager CDB540HP 30mA 40A RCCB 1P+N Type B HP for Heat Pumps

1 In Stock
More available within:
Usually 2 - 4 Working Days
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SKU: CDB540HP
£146.98

Hager CDB563HP 30mA 63A RCCB 1P+N Type B HP for Heat Pumps

2 In Stock
More available within:
Usually 2 - 4 Working Days
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SKU: CDB563HP
£146.98

Fusebox RTA1001002S 2 Pole 100A 100mA Type A RCD – “S” Time Delayed

11 In Stock
More available within:
Usually 1 - 3 Working Days
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SKU: RTA1001002S
£37.62

Live Electrical | RDA4100-100 | 4 Pole | Bi-Directional Type A RCD | 6kA | 100mA | 100A

1 In Stock
More available within:
Usually 2 - 3 Working Days
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SKU: RDA4100-100
£20.99

Live Electrical | CEV263B-030 | 2 Pole | Bi-Directional Type B RCD | 10kA | 30mA | 63A

1 In Stock
More available within:
Usually 2 - 3 Working Days
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SKU: CEV263B-030
£89.00

Fusebox RTA1000304 100A 4 Pole 30mA Type A RCD

4 In Stock
More available within:
Usually 2 - 4 Working Days
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SKU: RTA1000304
£27.29

Live Electrical RT280-100 2 Pole Time Delay 100mA 80A RCD

1 In Stock
More available within:
Usually 2 - 3 Working Days
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SKU: RT280-100
£26.50

Garo DCCB63-2-1 63A 2 Pole Type A 100mA Bi-Directional RCCB

4 In Stock
More available within:
Usually 2 - 3 Working Days
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SKU: DCCB63-2-1
£24.06

Hager CDB525HP 30mA 25A RCCB 1P+N Type B HP for Heat Pumps

1 In Stock
More available within:
Usually 2 - 4 Working Days
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SKU: CDB525HP
£146.98

Garo DCCB63-2-3S 63A 2 Pole Type A 300mA Time Delay Bi-Directional RCCB

1 In Stock
More available within:
Usually 2 - 3 Working Days
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SKU: DCCB63-2-3S
£45.50

FuseBox RTF800302 Type F RCD 80A 30mA 2P

1 In Stock
More available within:
Usually 2 - 4 Working Days
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SKU: RTF800302
£52.00

Fusebox RTA1001004 100A 4 Pole 100mA Type A RCD

7 In Stock
More available within:
Usually 2 - 4 Working Days
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SKU: RTA1001004
£27.29

FuseBox RTF1000302 Type F RCD 100A 30mA 2P

3 In Stock
More available within:
Usually 2 - 4 Working Days
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SKU: RTF1000302
£54.60

Garo DCCB63-4-1 63A 4 Pole Type A 100mA Bi-Directional RCCB

1 In Stock
More available within:
Usually 2 - 3 Working Days
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SKU: DCCB63-4-1
£32.86

Garo DCCB63-2-03B 63A 2 Pole Type B 30mA Bi-Directional RCCB

1 In Stock
More available within:
Usually 2 - 3 Working Days
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SKU: DCCB63-2-03B
£98.50

Garo DCCB40-4-03 40A 4 Pole Type A 30mA Bi-Directional RCCB

1 In Stock
More available within:
Usually 2 - 3 Working Days
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SKU: DCCB40-4-03
£31.71

Showing 1–20 of 93 results

Why Choose Electrical4Less for Your RCDs?

At Electrical4Less, we stock a comprehensive range of Residual Current Devices (RCDs) that protect against electric shock, fire risk & equipment damage. Whether you’re installing in a home, commercial site or EV system, we have the right solution — in stock & ready to ship.


🔌 What Does an RCD Do?

RCDs monitor circuit leakage and trip when an electrical imbalance is detected — reacting faster and more sensitivelythan standard breakers.

They offer three key types of protection:

  • Fault protection – trips when fault current flows to earth
  • Additional protection – trips at 30mA or lower to protect people
  • Fire protection – trips at 100mA or 300mA to reduce fire risks

⚙️ RCD Types Explained

We supply all major RCD types, including:

  • Type AC – for basic protection against AC currents
  • Type A – detects pulsating DC up to 6mA, ideal for modern electronics
  • Type F – suitable for appliances with variable frequency (e.g. heat pumps, washing machines)
  • Type B – advanced DC detection for EVs, solar, and industrial use

💡 Modern devices often require Type A, F, or B. Always check the equipment and BS 7671:2018 guidelines before selecting.


📏 Current Ratings & Sensitivities

  • 30mA – for personal protection (domestic or additional protection)
  • 100mA / 300mA – for fire protection and commercial equipment safety
  • 2 pole & 4 pole options – for single or three-phase installs

🔒 Quality Brands – Authorised UK Stockist

We are an authorised distributor for:

  • Hager
  • FuseBox
  • Niglon
  • Live Electrical
  • Garo

We stock the full range — from standard RCDs to specialised units for EVs, heat pumps, and solar installations.


🚚 Ready to Dispatch – Trusted by the Trade

With large UK stock, fast delivery, and expert support, we help electricians, installers & specifiers stay safe, compliant & on schedule.