Hager NDN140A 40A Single Pole MCB 10kA D Curve, 1P 10kA/15kA D-40A 1M MCB

Model No. ND140 by: Hager
Availability: Normally In Stock


List price £22.51
You save £14.13!
Free Delivery
(over £100+VAT, applies to zones A&B only, £6+VAT otherwise)
Click & Collect
Order online & collect in store
This is the Hager NDN140A 40A Single Pole MCB 10kA D Curve, 1P 10kA/15kA D-40A 1M MCB. This MCB allows to ensure protection of circuits against short circuits and overload current.
The state of isolation is clearly indicated by the OFF mechanical position on the toggle with the green colour. Connector capacity is 25mm2 flexible connector, 35mm2 rigid conductor. 

Hager NDN140A 40A Single Pole MCB 10kA D Curve - Specs

  • Neutral position: without neutral
  • Number of poles: 1 P
  • Type of pole: 1 P
  • Fixing mode: Din-Rail
  • Tripping characteristics / Curve: D, D-type curve 
  • Rated operational voltage Ue: 230 / 400 V
  • Rated current: 40 A
  • Type of supply voltage: AC
  • Rated insulation voltage: 500 V
  • Rated impulse withstand voltage: 6000 V
  • Rated service breaking capacity: Ics
  • AC according IEC 60898-1: 7.5 kA
  • Rating current 30°C: 40 A
  • Incoming terminal capacity: 35mm2
  • Outgoing terminal capacity: 35mm2
  • Depth of installed product: 70 mm
  • Height of installed product: 83 mm
  • Width of installed product: 17.5 mm
  • Total power loss under IN: 3.71 W
  • Electric endurance in number of cycles: 4000
  • Number of mechanical operations: 20000
  • Number of modules: 1, single module MCB
  • Tightening torque: 2,8Nm
  • Can be accessorized: Yes
  • Standard text: EN 60898-1, IEC 60947-2
  • European directive WEEE: concerned
  • Protection index IP: IP20 rated
  • Operating temperature: -25…70 °C

Need more detailed specs?

Ask a question

Note: HTML is not translated!


Sparks Direct delivers via courier to the UK only; the standard delivery charge is £6 + VAT for all orders under £100 + VAT. If your order is over £120, you get free delivery (unless there's a special delivery charge for the items you wish to order or you're in shipping zone C or D). Full details for shipping charges can be found via Terms and Conditions.

If the items you order are in stock and the order is placed before 1.00pm, delivery can be made within 1-2 working days. If the items are not in stock, we will inform you via email how long it will take or ask for your confirmation if there's a long lead time.


We offer 30-day returns for unwanted items - please email us to request a returns number which will need to be quoted when the items are returned. For faulty items or items damaged in transit, please advise via email, and an appropriate returns number will be provided. Full details concerning returns and refunds can be found via our Terms and Conditions.