Cookies are used on our website.

Wylex NHXB50 MCB SP Type B 50A 6kA

Click to enlarge

Product Code: NHXB50

Wylex NHXB50 MCB SP Type B 50A 6kA

Available stock: 1

£ 3.20 excl VAT


NHXB / NSB MCB ( Type B )
Rated 50 Amps

Direct Replacement for Wylex NSB MCB's

General Domestic Consumer Unit use

The Miniature Circuit Breaker for the Wylex NH Range of consumer Units, 6ka rated for domestic duty, in type B for surges between 3-5 times the start up current.

Wylex NSB MCB's detect overcurrents due to both overload and fault currents. 
The MCB will operate and interrupt the supply to prevent damage to the installation.


  • Wylex NSB Domestic MCBs have a short circuit breaking capacity of 6000A (M6).

  • The current carrying capacity of the cable should always exceed the current rating of the MCB to prevent damage.

  • The operating dolly may be locked in either the ON or OFF position without affecting the ability of the trip mechanism to operate.

  • When in the off position, a contact gap of 4 mm is achieved. Wylex NSB MCBs may therefore be used as single pole isolating switches where appropriate.


Only registered users can write reviews. Please, log in or register

Parcels are generally dispatched on the same day (before 1pm) or the next working day after receipt of payment. Parcels are shipped via our preferred couriers using a number of delivery options:

  • Same day local delivery (Call to ask)
  • Click and Collect
  • 24hr services
  • 48hr services
  • 3-5 Working Days

This is chosen during the checkout process.

Some non-stock items may take upto 14 days, where this is the case you will be informed within 24hrs. 

Special Delivery - We can offer next day delivery and timed deliveries where required, these are on a price on application basis so please call us prior to placing your order so we can advise costs. 

Shipping fees include handling and packing fees as well as postage costs. We advise you to group your items in a single order, and we will endeavour to group two distinct orders placed separately together, however this cannot be guaranteed. As a result shipping fees may apply to each of them if placed separately. Your package will be dispatched at your own risk, but special care is taken to protect fragile objects.