MK 13A Fuse Unit Grid Module White Product Code: 74950

13A fuse unit. Part of the MK Grid Plus System. Modules simply clip into place from the front of the mounting frame (sold separately).


  • Model No: K4890 WHI
Additional Information
Technical Specification
  • Brand : MK
  • Total Product Weight : 35 kg
  • Model No : K4890 WHIS2
  • Parent Colour : White
  • Colour : White
  • Pack Size : 1
  • Manufacturer Guarantee : 20 Year Manufacturer's Guarantee (T&Cs Apply)
  • Pieces in Pack/Case : 1
Product Contents
Delivery & Returns


Standard delivery: €15

Free delivery on all orders over €70.00

Click here to see information on our delivery charges and times



Hopefully you won't need to return an item, however, if you do, it is our aim to make this as simple as possible. By following the guidance below you can help us to help you when a product is not what you expected, or is faulty. Your statutory rights are not affected by this guidance.


Click here to see information on returns and cancellation

€8.95 Incl. 20% VAT

Add to Wishlist

More Items to Consider

Loading... Loading...
MK 13A Fuse Unit Grid Module White is rated 3.0 out of 5 by 2.
Rated 1 out of 5 by from Flawed design! Had to replace one of these as the L1 top terminal screw had failed to screw down and make a good connection. Visual inspection showed the screw couldn't even be undone as it had twisted like the tapping had broken internally. Imagine my surprise when I fitted the replacement and while tightening up the screw the same thing happened. The sound of something breaking internally (plastic thread ?) let me know this was a poor product. Back out I went for another replacement and when this 3rd one was fitted, barely any tightening was done. I am not a 200 lb gorilla and no way did I over torque this. Normally the screw head would be the first thing to deform. If you can, I wouldn't buy into this system
Date published: 2018-10-29
Rated 5 out of 5 by from Cant go wrong with MK Solid, easy to install and looks good too. Cant go wrong with MK
Date published: 2015-05-31
  • y_2019, m_5, d_25, h_24
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.12
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_2
  • loc_en_GB, sid_74950, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix-ie