Joined in 2023 
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63 About this deal
There are some geographical areas that we are unable to offer next day delivery as standard, such as the Scottish Highlands. We are unable to guarantee next day delivery to the following post codes AB31, AB33-38, AB44-56, IV, HS, KA27-28, KW, PA20-88, PH17-26, PH30-44, PH49-50, TR21-25 and ZE. A J803 junction box provides protection and insulation of connections, away from environmental elements which could reduce their effectiveness, such as dust or movement, whilst also improving the safety of your wiring, reducing the risk of exposed unsheathed wiring and containing any sparks.
Capacity for connection of 3 conductors between 0.5mm² - 4.0mm² for each terminal. Features of Hager J803:My curious mind is just pondering why addition of the fourth group of (seemingly identical) terminals in the J804 brings about a reduction in current rating from 32A to 20A. Any ideas? Designed for maintenance free installation, J804 is suitable for use in 'inaccessible' areas, fitted with reversible cable clamp and spring fit terminals which will not loosen over time, an ideal long term solution, ideal for usage under floors, between ground and first floor in houses or where cable jointing is used to aid rewiring.
J803 features the high quality construction and usability which has made Hager trusted throughout the trades with high quality, solid machined brass terminals and a single centre screw cover fixing. There is a separate discussion going on as to whether Ashley’s J803 and J804 ‘maintenance-free’ junction boxes are suitable for use in inaccessible locations. However, that discussion aside, there is one point about these products which has aroused my curiosity ....days. We endeavour to keep you updated on your delivery, however, please be advised that this might just be a named day service within normal working hours. We are unable to deliver to the Isle of Scilly, Jersey, Guernsey, Northern Ireland, Isle of Man and the rest of Europe.
They look to be well-designed and well-engineered products; the cable clamps, pretty unique amongst JBs, are particularly welcome. The J803 and J804 are almost identical, both containing groups of four interconnected push-button-operated spring terminals, each with a specified conductor capacity of 0.5mm² – 4mm². Both say that each of the (four) cable clamps can take up to 2 x 2.5mm² T&E cables or 1 x 4mm² T&E cable. As far as I can make out, there are only two differences between the J803 and J804:
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