



Wylex NHXLB40 1 Module Single Pole B Curve/Type B Miniature Circuit Breaker MCB 40A 6kA
NHXLB40
Wylex Single Pole Type B Miniature Circuit Breaker – 40A Protection for Domestic Consumer Units
The Wylex Single Pole Type B MCB provides reliable circuit protection with a 40A rating and 6kA breaking capacity. Designed for use in Wylex domestic consumer units, this breaker ensures safe operation by detecting and interrupting overcurrents caused by overloads and faults.
- Type B Tripping Curve – Trips between 3 to 5 times the full load current, making it ideal for household circuits.
- 40A Rated Current – Suitable for protecting lighting circuits and low-power electrical loads.
- 6kA Short-Circuit Capacity – Provides reliable fault protection for domestic installations.
- Single Pole Configuration – Designed for easy installation in Wylex consumer units.
- Durable & Compact Design – Built to high standards for long-lasting, safe operation.
Technical Specification
- Rated Current: 40A
- Tripping Curve: Type B
- Breaking Capacity: 6kA
- Configuration: Single Pole
- Compatibility: Wylex Domestic Consumer Units
- Standards Compliance: IEC/EN 60898
✅ Choose the Wylex Type B MCB for secure and efficient circuit protection in domestic installations!

Ean Code | 5013601089126 |
Range | Wylex NH Series |
Trip Type | B Curve |
Short Circuit Rating | 6kA |
Cable Capacity | 0.75-25 mm2 |
Product | MCB |
Type | Single Pole |
Ingress Protection | IP20 |
Voltage | 230 V |
Pole Configuration | Single Pole (1P) |
Mounting | DIN Rail |
Width | 18 mm |
Depth | 77 mm |
Current Rating | 40A |
Standards | BS EN 60898-1 |
Number Of Poles | Single Pole (1P) |
Height | 90 mm |
Number Of Modules | 1 |
Delivery Costs
Our standard delivery charge to UK mainland addresses is £5.90 ex-VAT.
Take advantage of FREE* Delivery when you spend over £100 (per order) ex-VAT.
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12.00 ex-VAT.
Solar Panels, Batteries and Inverters
Due to their size all solar panels, batteries and inverters orders up to 50 qty will be despatched on a pallet and incur a £120** ex-VAT delivery charge.
**£180 ex VAT to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes.
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