Single Module 2 Pole RCBO 32A B Curve WRN32B-030
18th Ed. Compliant
2-Year Warranty
UK Stock
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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 device, it safeguards circuits against AC and pulsating DC faults. With a switched neutral built in, it guarantees full circuit isolation during a fault, ensuring safer...
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 device, it safeguards circuits against AC and pulsating DC faults. With a switched neutral built in, it guarantees full circuit isolation during a fault, ensuring safer maintenance and compliance with BS 7671 (18th Edition).
Installer Tip: A 32A B-curve RCBO is often used for dedicated appliance circuits (such as cookers, showers, or small submains) where a higher load capacity is required.
- 32A B-Curve RCBO: Suited to higher load domestic and light commercial circuits
- Type A protection: Trips on AC and pulsating DC residual currents
- Compact single-module width: Saves space in distribution boards
- 2-pole switched neutral: Ensures full disconnection of live and neutral
- Minimises disruption: Only the faulty circuit is isolated
- BS 7671 compliant: Meets Amendment 2 safety standards
What is a 32A RCBO typically used for?
It’s suited to higher-load circuits such as cookers, showers, or small submains, where both overload and residual current protection are required in one device.
Does this unit include a switched neutral?
Yes. Both live and neutral are disconnected on fault, ensuring safer isolation and meeting modern wiring standards.
Can I install this in a standard consumer unit?
Yes. Its compact single-module width makes it compatible with most UK DIN rail consumer units and distribution boards.
Why choose a B-curve over a C-curve RCBO?
B-curve devices are used where inrush currents are low, such as lighting, sockets, and many domestic appliances. For motor loads or circuits with higher inrush currents, a C-curve variant is recommended.
Is this product compliant with UK wiring regulations?
Yes. The WRN32B-030 complies with BS EN 61009-1 and is suitable for installs designed to 18th Edition Amendment 2.
When should I choose a C-curve instead of this B-curve?
The WRN32C-030 C Curve RCBO is recommended if your circuit has higher starting currents from pumps, HVAC, or industrial kit.
Other WRN Options
| SKU | WRN32B-030 |
| Device Type | Type A RCBO |
| Current Rating | 32A |
| Curve | B Curve |
| Residual Current | 30mA |
| Poles | 2 Pole (Live + Neutral switched) |
| Module Width | 1 (18mm) |
| Dimensions | 18 × 82 × 77mm |
| Mounting | DIN rail |
| Standards | BS EN 61009-1, BS 7671 |
The WRN32B-030 mounts on a single 18mm DIN rail slot, compatible with standard consumer units. Final installation and testing must be carried out by a qualified electrician to ensure full compliance.
- Fits standard DIN rail boards with conventional busbars
- Terminal layout designed for fast, secure connections
- Switched neutral improves safety for isolation and testing
- Test button included for periodic verification
