Waterproof Empty Junction Box M20 (117x85x51mm) 10 Way Threaded Membrane Entries Black

The WISKA COMBI® 310 is more than just a junction box — it’s the perfect harmony of form, function, and feedback. Every curve, every feature, and every entry point has been carefully considered to meet the needs of modern installers while upholding the proud heritage of the WISKA and COMBI® Junction Box name. It is the culmination of decades of design expertise, rigorous testing, and an unwavering commitment to quality.

Measuring just 117 × 85 × 51 mm, the COMBI 310 provides 10% more internal space than similar enclosures. Rated IP66/67, it offers superior dust and water protection with 10 × M20 threaded membrane entries plus 4 rear entries for flexible cable access.

Specifications

• Material: Polypropylene
• Temp. range min: -30 °C
• Temp. range max: 100 °C
• Temperatures during install.: -5 °C - 60 °C
• Protection class: IP66 / IP67 - IP66: using the membrane entry / IP67: using the threaded entry together with ESKV cable gland
• Glow wire test: 750 °C
• Voltage: 400 V
• Rated cross section: 4 mm²
• Fixing: 4 internal openings
• Ø cable diameter min: 3 mm
• Ø cable diameter max: 12 mm
• External dimensions: 117 x 85 x 51mm (LxWxH )
• Type of cable gland: M20 x 1,5
• Equipment: 10 M20 threaded membrane entries / 4 captive cover screws
• Fixing: 4 internal openings outside of the sealing area

Product Video