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B Curve RCBOs are designed for standard domestic and light commercial circuits where inrush currents are low and predictable. They provide combined overcurrent and earth leakage protection in a single device, making them the preferred choice for modern boards where every circuit requires its own dedicated protection.
These RCBOs trip within the B-curve range, meaning they respond quickly to fault currents that reach three to five times the rated current. This makes them ideal for lighting circuits, ring finals, small power circuits and general domestic loads. Most models include a switched neutral and are suitable for both new installs and retrofit upgrades.
Installers choose B curve RCBOs for clean circuit separation, reduced nuisance tripping and simpler periodic inspection. All product dimensions and ratings are provided within the individual listings.
The WRT132B-030 is a 32A B Curve Type A RCBO that delivers overcurrent and 30mA residual current protection in one slimline device. It features...
The WRT125B-030 is a 25A B Curve Type A RCBO combining residual current and overcurrent protection in one slim device. It features switched live...
The WRT110B-030 is a 10A B Curve Type A RCBO combining residual current and overcurrent protection in one compact device. It features switched live...
The WRN32B-030 is a 32A Type A RCBO in a compact single-module, 2-pole design. Combining residual current (RCD) and overcurrent (MCB) protection in one...
The WRN20B-030 is a 20A Type A RCBO in a single-module, 2-pole design — providing both residual current (RCD) and overcurrent (MCB) protection in...
The WRT106B-030 is a 6A B Curve Type A RCBO providing combined residual current and overcurrent protection in one compact device. It features switched...
The WER06C-030 is a 6A C Curve High Immunity Type A RCBO designed to provide combined overload, short-circuit and residual current protection in one...
The WER06B-030 is a 6A B Curve High Immunity Type A RCBO designed for circuits requiring combined overload, short-circuit and residual current protection in...
The WRT340B-030 is a 3-pole Type A RCBO designed for three-phase circuits requiring combined residual current and overcurrent protection at a 40A rated current....
The WRT140B-030 is a 40A B Curve Type A RCBO that delivers overcurrent and 30mA residual current protection in one compact device. Featuring switched...
The WRN40B-030 is a 40A Type A RCBO in a compact single-module, 2-pole design. It combines residual current (RCD) and overcurrent (MCB) protection in...
The WRN16B-030 is a compact 16A Type A RCBO in a single-module, 2-pole format - combining residual current (RCD) and overcurrent (MCB) protection in...
A B curve RCBO combines residual-current protection with an overcurrent characteristic normally suited to relatively low-inrush loads. The correct device still depends on the circuit rating, conductor capacity, fault-loop conditions, RCD type and connected equipment.
Available across common final-circuit ratings for suitable modern domestic and light-commercial loads.
Single-module options can preserve board space, but their terminals and busbar arrangement must suit the consumer unit.
Designed for suitable circuits affected by transient noise or accumulated leakage. Genuine faults should be investigated before changing device type.
C Curve RCBOsType A RCBOsMini Type A RCBOs10kA RCBOsRCBOs
Trade support: UK-stocked products, manufacturer-backed specifications and fast dispatch. Check each product page for ratings, standards, stock status and delivery details before ordering.
$132.00 ex VAT
VAT: Product prices exclude VAT. VAT is added at checkout.
