{"product_id":"20a-4-terminal-junction-box-white-59mm","title":"20A 4-Terminal Junction Box - White (59mm)","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Knightsbridge 20A 4-terminal junction box is a 59mm diameter enclosure moulded from white thermoset resin with knockout cable entries and four brass terminals inside. The junction box is rated to handle circuits up to 20A on 230V mains and is certified to BS EN 60670 for safe residential and commercial installation.\u003c\/p\u003e\n\u003cp\u003eDesigned for use above ceilings, behind walls, and in other concealed spaces where cable runs need to be joined or split, the junction box provides a fire-resistant enclosure for wire connections. The knockout entry points around the perimeter accept conduit or cable glands and can be punched out as needed during installation. The four terminals inside accept cables up to 2.5mm² cross-section and are secured with brass screws.\u003c\/p\u003e\n\u003cp\u003eThe white thermoset resin body resists heat, impact and UV degradation better than standard PVC enclosures, making it suitable for locations where temperature fluctuations occur or where long service life is required. The IP20 rating protects against solid objects larger than 12.5mm but does not provide water ingress protection, so the junction box is intended for dry indoor locations only. The 25mm projection from the mounting surface allows sufficient depth for cable bends inside the box without crushing conductors.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e59 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProjection\u003c\/td\u003e\n\u003ctd\u003e25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eThermoset resin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Voltage\u003c\/td\u003e\n\u003ctd\u003e230V 50Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_2002388_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat cable size does it accept?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe four brass terminals accept cables up to 2.5mm² cross-section. Larger cables require a bigger junction box with higher-rated terminals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used in bathrooms or outdoors?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The IP20 rating means the box is only protected against solid objects larger than 12.5mm and offers no water ingress protection. It must be installed in dry indoor locations only.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow are cables fed into the box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe perimeter of the box has knockout entry points that can be punched out during installation. Once removed, these knockouts accept conduit fittings or cable glands to secure and seal the cable entry.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the 25-year warranty cover?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKnightsbridge provides a 25-year warranty on the thermoset resin body against manufacturing defects. This does not cover misuse, incorrect installation, or damage from external sources.\u003c\/p\u003e","brand":"Knightsbridge","offers":[{"title":"Default Title","offer_id":45293978943755,"sku":"SN8410","price":1.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/159032_3511e85c-a8cf-49d2-8caa-b4b1b389623e.jpg?v=1714667057","url":"https:\/\/niori.co.uk\/products\/20a-4-terminal-junction-box-white-59mm","provider":"Niori","version":"1.0","type":"link"}