



Wylex PSBS20-B/1 NH Series 1 Module SP+N B Curve Type A RCBO 20A 10kA 30mA
PSBS20-B/1
Wylex NH Series Single Pole + Neutral Type A RCBO – 20A Protection with 30mA Earth Fault Detection
The Wylex NH Series Type A RCBO combines MCB overcurrent protection with RCD earth fault detection in a single compact unit. With a 20A rating, 10kA breaking capacity, and 30mA sensitivity, this RCBO is ideal for safeguarding final circuits in NH Type A & B distribution boards, ensuring compliance with modern electrical safety standards.
- Type A RCBO Protection – Detects AC and pulsating DC residual currents for enhanced electrical safety.
- Type B Tripping Curve – Trips between 3 to 5 times the full load current, making it suitable for residential and light commercial circuits.
- 20A Rated Current – Provides precise protection for lighting and low-power electrical circuits.
- 10kA Short-Circuit Capacity – Ensures high-level fault protection for demanding installations.
- 30mA RCD Sensitivity – Quickly detects and isolates earth faults to prevent electric shock.
- Single Pole + Neutral Configuration – Ensures reliable disconnection and protection of circuits.
- Compatible with NH Distribution Boards – Designed for seamless installation in Wylex NH Type A & B distribution boards.
Technical Specification
- Rated Current: 20A
- Tripping Curve: Type B
- Breaking Capacity: 10kA
- RCD Sensitivity: 30mA
- Configuration: Single Pole + Neutral
- Compatibility: Wylex NH Type A & B Distribution Boards
- Standards Compliance: IEC/EN 61009
✅ Ensure superior circuit protection with the Wylex NH Series Type A RCBO for safe and efficient electrical installations!

Ean Code | 5013601081601 |
Range | Wylex NH Series |
Trip Type | B Curve Type A |
Short Circuit Rating | 10kA |
Cable Capacity | 0.5 to 16 mm2 |
Sensitivity | 30 mA |
Product | RCBO |
Type | Singe Pole + N |
Voltage | 230 V |
Pole Configuration | Single Pole (1P) |
Current Rating | 20A |
Standards | BS EN 61009-1/61009-2 |
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.