Wylex NHXLB40 MCB 40A Type B Single Pole Miniature Circuit Breaker 6kA 1 Pole 1 Module

Model No. NHXB40 by: Wylex (Electrium).
£3.99 Ex. VAT
List price £9.80 You save £5.81!
This item requires:

Free delivery
(over £100 +VAT, applies to zone A and B only, £6 +VAT otherwise)

Normally In Stock

Click & Collect

Order online & collect in store

Our customers love us - read their reviews

Wishlist Ask a question Compare

This is the Wylex NHXLB40 Miniature 40A rated - MCB Type B Single Pole Single Module, 6kA 1 Module. These would fit the Wylex fixed busbar boards having a "L" at the end, or any Flexi boards (with a busbar), including the Wylex NMX range. Not 

Please note: this is the NEW style Wylex MCB which fits the new Wylex boards; they are not suitable for the old Wylex boards unless they have a "L" at the end of their code.

Wylex NHXLB40 MCB 40A Type B - Specs

  • Voltage: 230V, Mains Voltage
  • Trip curve: B, Type B MCB
  • Rating: 40 Amp
  • Breaking Capacity: 6kA
  • Number of modules: One, single module MCB
  • Number of Poles: One, 1 pole MCB
  • Terminal capacity: 25mm2
  • BS Number: BS EN 60898
  • Tightening torque: 2.3Nm minimum 3.0Nm maximum
  • Height: 90mm
  • Width: 18mm
  • Depth: 77mm
  • IP rating: IP20 rated
  • Energy limiting class: 3
  • Connectable conductor cross-section / stranded: min 0.75mm2 and max. 25mm2
  • Connectable conductor cross-section: solid minimum 0.75mm2 and max 25mm2; finely stranded / with core end processing - minimum 0.75mm2
  • Installation depth: 70mm
  • All the Wylex NHXLB Miniature Circuit Breakers MCBs detect overcurrent’s due to both overload and fault currents.
  • Degree of pollution: 2
  • This MCB has a positive indication for On or Off.
  • Influence of the surrounding temperature: Maximum 95% humidity
  • An MCB will operate and interrupt the supply to prevent damage to the installation.
  • Ambient temperature: min -25 degrees Celsius to max. 45 Degrees Celsius
  • During storage min temp: -40 degrees Celsius to max. 75 degrees Celsius


Follow us for exclusive offers and tips about lighting, switches and sockets

Get in touch

Telephone 020 7263 8007

Fax 020 7272 3007

Sparks Electrical Wholesalers Ltd, 659-661 Holloway Road, Archway, London, N19 5SE, United Kingdom
Registered in England. Company No. 2238028. VAT Reg No: GB 505 6899 17. Copyright © 2003-2021 SparksDirect

Award Winning Ecommerce from Cyber-Duck