The J310 is a 10 way junction box with 2 of the 10 terminals reserved for tamper protection. The tamper is provided by a sprung microswitch, which detects removal of the lid.
This JB features wire clamping terminal blocks on a PCB for ease of installation. The unit is contained inside an ABS housing with a gasket seal between lid and base.
Each end is left open with rubber seals for cable entry - be it conduit, coax or grommets.
The J310 screws together with anti-loss screws as an added convenience.
Also available in brown - use part code J310B.