Wiska WI304 10110630 Round Enclosure Black

The COMBI 304 BK, offered in sleek black (RAL 9005), is Wiska’s first circular junction box in their COMBI® series. It measures 82 mm with a height of 57 mm, and presents an elegant solution for both architectural and retro design installations. Crafted from halogen‑free polypropylene with a thermoplastic elastomer (TPE) gasket, the enclosure is built to withstand UV, ozone exposure, and general environmental wear—perfect for both indoor and outdoor use.

The COMBI 304 BK offers IP66 protection using its four M20 threaded-membrane cable entries, and can reach IP67 when paired with the correct Wiska ESKV cable gland in the threaded entry system. A flat lid with a bayonet-style quarter-turn cap and a hook locking mechanism provides secure closure that resists unauthorized opening—even tools are needed to access it after locking.

Rated for circuits up to 400 V, the COMBI 304 BK supports conductors up to 2.5 mm², accommodates cable diameters from 3 mm to 12 mm, and passes a 750 °C glow-wire safety test, meeting high standards for fire safety and electrical integrity. It operates efficiently across a temperature range of –30 °C to 100 °C, with a recommended installation window between –5 °C and 60 °C.

Weighing approximately 80 g, the round, compact design includes two external mounting feet for quick and secure surface attachment without compromising its sealed protection. The empty internal volume is approximately 180 ml, offering enough space for custom wiring installations.

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