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RCBO - Residual Current Breakers with Over-Current

Showing 101–120 of 395 results

Niglon RCBO1-40/30SSAX 40A Curve B 30mA A Type RCBO

51 In Stock
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Usually 2 - 3 Working Days
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SKU: RCBO1-40/30SSAX
£11.12

WCED Double Pole Type A 30mA RCBO Curve B – 10A

4 In Stock
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Usually 1 - 2 Working Days
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SKU: WER10B-030
£16.80

WCED Double Pole Type A 30mA RCBO Curve C – 16A

Available to Order
Estimated Lead Time:
Usually 1 - 2 Working Days
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SKU: WER16C-030
£15.09

Hager ADB416U RCBO 10kA B-16A 30mA Type A

3 In Stock
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Usually 2 - 4 Working Days
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SKU: ADB416U
£37.99

FuseBox | RTAMC06BD | 30mA | Curve C | Type A Bi-Directional Mini RCBO | 6A

24 In Stock
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Usually 2 - 4 Working Days
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SKU: RTAMC06BD
£14.34

Niglon RCBO1-20/30SSAX 20A Curve B 30mA A Type RCBO

15 In Stock
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Usually 2 - 3 Working Days
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SKU: RCBO1-20/30SSAX
£11.12

Niglon RCBO1-6/30SAX2 6A Curve B 30mA Bi-Directional A Type RCBO

13 In Stock
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Usually 2 - 3 Working Days
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SKU: RCBO1-6/30SAX2
£12.78
Live Electrical RC140C-030 Live 30mA 40A RCBO 10kA Curve C Type AC 1Live Electrical RC140C-030 Live 30mA 40A RCBO 10kA Curve C Type AC 2

Live 30mA 40A RCBO 10kA Curve C Type AC

8 In Stock
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Usually 2 - 3 Working Days
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SKU: RC140C-030
£10.99 £5.99

Hager ADC410U RCBO 10kA C-10A 30mA Type A

3 In Stock
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Usually 2 - 4 Working Days
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SKU: ADC410U
£37.99

Hager ADC416U RCBO 10kA C-16A 30mA Type A

4 In Stock
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Usually 2 - 4 Working Days
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SKU: ADC416U
£37.99

Live Electrical | RKA116C-030 | 1P+N | Bi-Directional RCBO | Type A | Curve C | 10kA | 30mA | 16A

8 In Stock
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Usually 2 - 3 Working Days
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SKU: RKA116C-030
£11.59

WCED WRT132C-030 Bi-Directional 10kA Type A 30mA RCBO Curve C 32A

3 In Stock
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Usually 1 - 2 Working Days
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SKU: WRT132C-030
£10.97

Hager | ADC932R | 1P+N | 6kA | 30mA | C Curve | Type A Bidirectional RCBO | 32A

6 In Stock
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Usually 2 - 4 Working Days
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SKU: ADC932R
£19.70

FuseBox | RTAMB25BD | 30mA | Curve B | Type A Bi-Directional Mini RCBO | 25A

8 In Stock
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Usually 2 - 4 Working Days
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SKU: RTAMB25BD
£14.34

Live Electrical 10kA RCBO 50A Curve B Type A 30mA 1P+N

1 In Stock
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Usually 2 - 3 Working Days
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SKU: RA150B-030
£13.25

Live Electrical | RKA106B-030 | 1P+N | Bi-Directional RCBO | Type A | Curve B | 10kA | 30mA | 6A

9 In Stock
More available within:
Usually 2 - 3 Working Days
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SKU: RKA106B-030
£11.59

WCED WRT116B-030 Bi-Directional 10kA Type A 30mA RCBO Curve B 16A

Available to Order
Estimated Lead Time:
Usually 1 - 2 Working Days
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SKU: WRT116B-030
£10.97

Hager ADB432U RCBO 10kA B-32A 30mA Type A

3 In Stock
More available within:
Usually 2 - 4 Working Days
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SKU: ADB432U
£37.99

Live Electrical 3P+N 32A C Curve 30mA Type A RCBO

Out of Stock
Estimated ETA: end of July
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SKU: RTN332C-030N
£45.15

Live Electrical | AMR120B-100 | 100mA Bi-Directional Type A Compact RCBO 20A B Curve

15 In Stock
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Usually 2 - 3 Working Days
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SKU: AMR120B-100
£9.99

Showing 101–120 of 395 results

RCBOs for Consumer Units and Distribution Boards

RCBOs are used to provide circuit protection for individual circuits within consumer units and distribution boards. They combine overcurrent protection with residual current protection, helping protect against overloads, short circuits and earth leakage faults from a single device.

When selecting an RCBO, it is important to check the brand, board compatibility, breaking capacity, tripping curve, current rating, device type and terminal arrangement. RCBOs are not usually interchangeable between different consumer unit ranges, so compatibility should always be checked against the manufacturer’s instructions before installation.

Key Types of RCBOs

Single Pole RCBOs

Single pole RCBOs are commonly used for individual final circuits such as lighting, socket circuits and smaller domestic loads. They are often used in residential consumer units where each circuit requires separate residual current and overcurrent protection.

Double Pole RCBOs

Double pole RCBOs disconnect both live and neutral conductors. They are commonly used where full circuit isolation is required, subject to the installation design and manufacturer requirements.

Three Pole and Four Pole RCBOs

Three pole and four pole RCBOs are used for three-phase installations, including commercial and industrial systems where suitable residual current and overcurrent protection is required.

Bi-Directional RCBOs

Bi-directional RCBOs are designed for circuits where current may flow in either direction. They are often selected for modern installations involving equipment such as solar PV, battery storage or EV charging, where specified by the system design and manufacturer guidance.

Type A RCBOs

Type A RCBOs detect AC residual currents and pulsating DC residual currents. They are commonly used in modern installations with electronic equipment such as LED lighting, computers, appliances with electronic controls and EV-related equipment where required by the installation design.

Type AC RCBOs detect AC residual currents only. The correct RCD/RCBO type should always be selected in line with current wiring regulations, the connected equipment and the manufacturer’s instructions.

RCBO Tripping Curves

  • Type B curve – commonly used for domestic and light commercial circuits with lower inrush currents.
  • Type C curve – commonly used for circuits with higher inrush currents, such as certain lighting, motor or commercial loads.

Choosing the Right RCBO

Before ordering an RCBO, check the technical requirements of the installation and confirm compatibility with the consumer unit or distribution board. Important details include:

  • Brand and board compatibility
  • Current rating, such as 6A, 16A, 20A, 32A, 40A or 50A
  • Breaking capacity, such as 6kA or 10kA
  • Tripping curve, usually Type B or Type C
  • RCD type, such as Type A
  • Single pole, double pole or three-phase format
  • Terminal position and busbar compatibility

Related Consumer Units

If you are also choosing the enclosure or distribution board, browse our main consumer units category. Always check that the RCBO is suitable for the selected consumer unit range, busbar system and manufacturer requirements.

RCBO FAQs

What does an RCBO do?

An RCBO combines residual current protection and overcurrent protection in one device. It helps protect a circuit against earth leakage faults, overloads and short circuits.

Can I fit any RCBO into any consumer unit?

No. RCBOs should be compatible with the specific consumer unit or distribution board range. Always check the manufacturer’s compatibility information before installation.

What is the difference between Type B and Type C RCBOs?

Type B and Type C refer to the tripping curve. Type B RCBOs are commonly used for circuits with lower inrush currents, while Type C RCBOs are used where higher inrush currents may be expected.

What is a Type A RCBO?

A Type A RCBO detects AC residual current and pulsating DC residual current. It is commonly specified for many modern circuits with electronic equipment.

Who should install an RCBO?

RCBOs should be selected and installed by a qualified electrician who can confirm the correct rating, type, compatibility and installation requirements.