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Honeywell 10-Way Junction Box Product Code: 66443

10-way junction box with strain relief on all entries. For use on various central heating wiring applications. Complies with electrical approvals and wiring specifications. Conforms to 2006/95/EC


  • Optimal Terminal Sizing


230V. 50Hz. 15A. W x D x H: 147 x 40 x 104mm.
Additional Information
Technical Specification
  • Brand : Honeywell
  • Product Height : 104 mm
  • Product Type : 10-Way Junction Box
  • Product Width : 147 mm
  • Product Depth : 40 mm
  • Pack Size : 1
  • Amp Rating : 15 A
  • Manufacturer Guarantee : 1 Year Guarantee
  • 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

€10.45 Incl. 20% VAT

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Honeywell 10-Way Junction Box is rated 4.5 out of 5 by 17.
Rated 5 out of 5 by from Boiler junction box Simple easy the use, great cable entries and has enough connections for most installations. Great for gaining access to boiler demand connections used by smart heating systems. Would not hesitate to purchase more if required. Neat looking too (for a junction box)!
Date published: 2018-12-29
Rated 5 out of 5 by from Heating junction box. The best junction box on the market in my opinion.
Date published: 2018-12-08
Rated 5 out of 5 by from Junction box. Great piece of kit at a great price. Buying experience second to none.
Date published: 2018-11-09
Rated 5 out of 5 by from Allows flush entry Another review mentioned that this does not allow flush entry. But it certainly does, you simply cut small side whole next to a cable clamp, quite simple. Comes with 4 cable clamps and 10 connectors, 3 of them being slightly larger and off to one side.
Date published: 2018-04-09
Rated 2 out of 5 by from Limited - No surface entries The main problem with this unit is that all cable entries have to be from behind the unit so limited in application and only suitable for new builds or major refits. The earlier model, although only 8 terminals (42002116-001 compared with 42002116-002) enabled surface entry in addition to rear entry. Big fail in my opinion as not so flexible for rewiring jobs and will be returning the unit for a refund.
Date published: 2018-04-09
Rated 4 out of 5 by from Heating Used some of these before from other dealers so checked screwfix to see if they supplied them and they was the best price
Date published: 2018-02-01
Rated 5 out of 5 by from Ideal for boiler connections New improved version of this junction box, ideal for boiler S plan connections.
Date published: 2016-12-03
Rated 5 out of 5 by from Ideal Great bit of kit, does exactly what it says on the description, perfect for any system y installs
Date published: 2016-01-02
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