
Lewden E10-1B40 1 Module Single Pole B Curve/Type B Miniature Circuit Breaker MCB 40A 10kA
E10-1B40
1 Module Single Pole B Curve Type B MCB – 40A, 10kA for High-Reliability Circuit Protection
This compact miniature circuit breaker (MCB) provides essential overcurrent protection for electrical installations. With a B curve tripping characteristic and 10kA breaking capacity, it is ideal for residential, commercial, and light industrial applications, ensuring safety and compliance.
- Single Pole Design: Space-efficient 1-module MCB for easy installation in consumer units and distribution boards.
- B Curve Tripping Characteristic: Designed for general applications, protecting against short circuits and moderate inrush currents.
- 40A Rated Current: Ideal for low-power circuits requiring precise protection.
- 10kA Breaking Capacity: Ensures robust protection against high fault currents for added reliability.
- Quick & Secure Installation: DIN rail mounting for fast and hassle-free setup.
Technical Specification
- Configuration: Single Pole (1P)
- Tripping Curve: B Curve
- Rated Current: 40A
- Breaking Capacity: 10kA
- Mounting: DIN Rail
- Standards Compliance: IEC/EN 60898-1
✅ Ensure reliable circuit protection with this high-quality MCB, designed for durability and performance!

Trip Type | B Curve |
Short Circuit Rating | 10kA |
Product | MCB |
Type | Single Pole |
Current Rating | 40A |
Number Of Poles | Single Pole (1P) |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 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.