



Wylex NHXSBS1B20 Series 1 Module Single Pole B Curve RCBO 20A 6kA 30mA
NHXSBS1B20
Wylex NHXSBS Single Pole Type B RCBO – 20A Protection with 30mA Earth Fault Detection
The Wylex NHXSBS Type B RCBO offers dual protection by combining the functions of an MCB and an RCD in a single module. With a 20A rating, 6kA breaking capacity, and 30mA earth fault sensitivity, this RCBO is designed to protect final circuits in domestic and commercial installations. Compatible with Wylex consumer units and two or four-module enclosures, ensuring flexible installation options.
- Type B Tripping Curve – Trips between 3 to 5 times the full load current, making it suitable for standard residential circuits.
- 20A Rated Current – Provides precise protection for lighting and small power circuits.
- 6kA Short-Circuit Capacity – Ensures reliable fault protection for enhanced electrical safety.
- 30mA RCD Sensitivity – Rapidly detects and isolates earth faults to reduce the risk of electric shock.
- Single Pole Configuration – Provides effective protection for individual circuits.
- Compact & Versatile Design – Suitable for installation in Wylex consumer units and two or four-module enclosures.
Technical Specification
- Rated Current: 20A
- Tripping Curve: Type B
- Breaking Capacity: 6kA
- RCD Sensitivity: 30mA
- Configuration: Single Pole
- Compatibility: Wylex Consumer Units & 2/4 Module Enclosures
- Standards Compliance: IEC/EN 61009
✅ Upgrade your circuit protection with the Wylex NHXSBS Type B RCBO for safe and efficient installations!

Ean Code | 5013601070735 |
Range | Wylex NH Series |
Trip Type | B Curve |
Short Circuit Rating | 6kA |
Sensitivity | 30 mA |
Product | RCBO |
Type | Single Pole |
Voltage | 230 V |
Pole Configuration | Single Pole (1P) |
Current Rating | 20A |
Rcd Sensitivity | 30 mA |
Number Of Poles | Single Pole (1P) |
Number Of Modules | 1 |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 ex-VAT)
- STANDARD DELIVERY – 2–3 Working Days From Despatch (subject to stock availability) - £4.99 inc-VAT. (£4.16 ex-VAT)
- Orders Over £100 (before VAT): We offer free standard shipping on all orders shipped to UK mainland addresses
- Orders under £100 (before VAT): Our standard delivery fee to UK mainland addresses is £5.90 ex-VAT (£7.08 inc-VAT)
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12 ex-VAT for all orders (Prices subject to change).
Items requiring specialist shipping:
- Orders containing Solar Panels, Batteries and/or Inverters: Up to 50 qty will be dispatched on a pallet and incur a £120 ex-VAT delivery charge**.
**Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £180 ex-VAT (Prices subject to change).
Contact us if you have any further questions.