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RCBOs – Combined Circuit Protection

Shop RCBOs for domestic and commercial boards, including Type A, mini, high-immunity, 10kA, EV and multi-pole options.

An RCBO combines overcurrent and residual-current protection for an individual circuit. Select the current rating, trip curve, breaking capacity and residual-current type from the installation design and connected equipment.

Quick guide: RCBOs can limit the disruption caused by a circuit fault because each outgoing circuit has its own residual-current and overcurrent protection. Correct device and consumer-unit compatibility remain essential.

  • Type A RCBOs: common options for modern electronic loads
  • Mini RCBOs: compact single-module formats for compatible boards
  • High-immunity RCBOs: designed to reduce unwanted tripping in suitable applications
  • 10kA and multi-pole RCBOs: specialist breaking-capacity and conductor configurations
Showing 13 to 24 of 72 items
✓ In stock SKU: WRT106C-030

Type A RCBO – 6A C Curve, 30mA

£14.50 ex VAT £17.40 inc VAT

The WCED WRT106C-030 is a 6A C Curve Type A RCBO with 30mA residual current sensitivity and a 10kA breaking capacity. It combines overload,...

✓ In stock SKU: WRT116C-030

Type A RCBO – 16A C Curve, 30mA

£14.50 ex VAT £17.40 inc VAT

The WCED WRT116C-030 is a 16A C Curve Type A RCBO with 30mA residual current sensitivity and a 10kA breaking capacity. It combines overload,...

✓ In stock SKU: WRT120B-030

Type A RCBO – 20A B Curve, 30mA

£14.50 ex VAT £17.40 inc VAT

The WCED WRT120B-030 is a 20A B Curve Type A RCBO with 30mA residual current sensitivity and a 10kA breaking capacity. It combines overload,...

✓ In stock SKU: WRT116B-030

Type A RCBO – 16A B Curve, 30mA

£14.50 ex VAT £17.40 inc VAT

The WCED WRT116B-030 is a 16A B Curve Type A RCBO with 30mA residual current sensitivity and a 10kA breaking capacity. It combines overload,...

✓ In stock SKU: WRT132C-030

Type A RCBO – 32A C Curve, 30mA

£14.50 ex VAT £17.40 inc VAT

The WCED WRT132C-030 is a 32A C Curve Type A RCBO with 30mA residual current sensitivity and a 10kA breaking capacity. It combines overload,...

✓ In stock SKU: WRT120C-030

Type A RCBO – 20A C Curve, 30mA

£14.50 ex VAT £17.40 inc VAT

The WCED WRT120C-030 is a 20A C Curve Type A RCBO with 30mA residual current sensitivity and a 10kA breaking capacity. It combines overload,...

✓ In stock SKU: WRT132B-030

Type A RCBO – 32A B Curve, 30mA

£14.50 ex VAT £17.40 inc VAT

The WCED WRT132B-030 is a 32A B Curve Type A RCBO with 30mA residual current sensitivity and a 10kA breaking capacity. It combines overload,...

Selecting an RCBO for the Circuit

An amp rating alone is not enough. Coordinate the RCBO with design current, conductor capacity, fault current, load inrush, residual-current waveform and the consumer-unit assembly. Follow the equipment and board manufacturer’s instructions.

Type A & Mini RCBOs

Type A devices respond to AC and pulsating DC residual current. Mini formats save module space, but must still be approved for the selected assembly.

Shop Type A RCBOs →

High-Immunity RCBOs

Designed for improved resistance to certain transient or electrically noisy conditions. They can help reduce unwanted operation where correctly specified.

Shop high-immunity RCBOs →

10kA, EV & Multi-Pole

Higher breaking capacity, EV-labelled and multi-pole products address distinct design requirements. Confirm the actual fault level and equipment requirements rather than selecting by label alone.

Shop 10kA RCBOs →

Specification Checklist

  • Rated current: coordinate with design current and conductor capacity.
  • Trip curve: select around inrush and fault-disconnection requirements.
  • Breaking capacity: verify against prospective fault current.
  • Residual-current type: match the connected equipment and expected waveform.
  • Assembly compatibility: confirm manufacturer approval, terminals, busbar and module width.

Supporting Guides

Related Categories

Type A RCBOsMini RCBOsHigh Immunity RCBOs32A RCBOsEV RCBOs

Product checks: use each listing’s datasheet and compatibility information to confirm rating, curve, residual-current type, poles and breaking capacity before ordering.