High Immunity Type A Mini RCBO – 32A B Curve (WRB132B-030)
18th Ed. Compliant
2-Year Warranty
UK Stock
Free Delivery £30+
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The WRB132B-030 High Immunity Type A Mini RCBO is a 32A B Curve protective device designed for medium-load circuits in residential and light commercial installs. Its slim 18mm design combines short-circuit, overload, and residual current protection in one unit. With 30mA Type A sensitivity and high immunity, it ensures safe,...
The WRB132B-030 High Immunity Type A Mini RCBO is a 32A B Curve protective device designed for medium-load circuits in residential and light commercial installs. Its slim 18mm design combines short-circuit, overload, and residual current protection in one unit. With 30mA Type A sensitivity and high immunity, it ensures safe, stable protection on EV chargers, socket circuits, and fixed appliances in compliance with the 18th Edition.
Installer Tip: Choose the 32A B Curve for general-purpose socket or appliance circuits requiring higher current handling. For motor-driven or inrush-heavy loads, use the 32A C Curve variant.
Key Features
- 32A rated current – protects larger socket or appliance circuits
- B Curve tripping – designed for standard residential and light commercial loads
- Type A sensitivity – detects AC + pulsating DC leakage
- High immunity – reduces nuisance tripping under harmonics
- Compact 18mm module – space saving for retrofit boards
- Switched live & neutral – ensures full isolation
- Bi-directional – suitable for PV and EV installations
Compare Mini RCBO Variants
| Model | Rated Current | Curve | Type | Width |
|---|---|---|---|---|
| WRB132B-030 (This Product) | 32A | B Curve | Type A, High Immunity | 18mm |
| WRB132C-030 | 32A | C Curve | Type A, High Immunity | 18mm |
What is the WRB132B-030 best used for?
It’s ideal for larger socket or appliance circuits requiring 32A protection.
When should I use the 32A C Curve instead?
The 32A C Curve is recommended for circuits with motors, pumps, or high inrush currents.
Does this RCBO comply with UK wiring regulations?
Yes – with 30mA Type A sensitivity and high immunity, it complies fully with 18th Edition requirements, including EV and PV systems.
Does it isolate both live and neutral?
Yes – it switches both conductors for full isolation during a trip or fault event.
- Product Code: WRB132B-030
- Rated Current: 32A
- Curve: B Curve
- Breaking Capacity: 6kA
- Poles: 1P + switched neutral
- Trip Sensitivity: 30mA
- Earth Leakage Detection: Type A (AC + pulsating DC)
- Module Width: 18mm
- Dimensions: 18 × 90 × 77 mm
- Standards: BS EN 61009-1
The WRB132B-030 is suitable for DIN rail consumer units and distribution boards. Installation must be performed by a qualified electrician.
- Use for socket, appliance, and small sub-main circuits rated at 32A
- B Curve tripping – tuned for standard residential/light commercial use
- Compact 18mm width – saves board space for additional circuits
- Switched neutral – provides safer testing and isolation
- Compatible with circuits requiring Type A leakage detection
