Wiska Combi Buying Guide

How to Choose a Wiska COMBI Junction Box

Choosing the right Wiska COMBI junction box depends on the number of cables, available wiring space, cable-entry sizes and installation environment. This guide compares the COMBI 206, 304, 308, 310, 407, 607, 1010, 1210 and 1610 ranges, helping electricians select a suitable enclosure for indoor and outdoor installations.

Wiska COMBI Sizes, Dimensions and Cable Entries

Wiska COMBI boxes range from compact enclosures for lighting connections to larger models for more complex wiring arrangements. Dimensions below are external measurements in millimetres. Click each model name to explore the corresponding Electrical4Less product range and compatible accessories.

• Wiska COMBI 206 – 85 × 49 × 51 mm, 6 M20 cable-entry positions. Compact rectangular enclosure for smaller connections and restricted spaces.
• Wiska COMBI 304 – 82 mm diameter × 57 mm deep, 4 M20 cable-entry positions. Circular design suited to compact installations.
• Wiska COMBI 308 – 85 × 85 × 51 mm, 8 M20 cable-entry positions. Square enclosure providing additional entry positions compared with the 206.
• Wiska COMBI 310 – 117 × 85 × 51 mm. An elongated design offering additional wiring space. Check the specific model for its cable-entry arrangement.
• Wiska COMBI 407 – 95 × 95 × 60 mm, 7 cable-entry positions with M20/M25 arrangements. Suitable where greater depth or larger cable entries are required.
• Wiska COMBI 607 – 110 × 110 × 66 mm, 7 M25 cable-entry positions. Offers additional space for cables and terminations.
• Wiska COMBI 1010 – 140 × 140 × 82 mm, 10 cable-entry positions with M20/M25/M32 options. Suitable for larger wiring arrangements.
• Wiska COMBI 1210 – 160 × 140 × 81 mm, 10 cable-entry positions with M20/M25 arrangements. Provides additional enclosure space for multiple connections.
• Wiska COMBI 1610 – 200 × 160 × 94 mm, multiple entry positions with M20/M25/M32/M40 options. A larger enclosure for more extensive wiring requirements.

Entry arrangements may include threaded membranes, membrane entries or knockouts, depending on the model. Check the manufacturer’s technical data for permitted cable diameters, usable internal space and compatible glands.

Wiska COMBI Colours – White, Light Grey and Black

Wiska COMBI junction boxes are available in white, light grey and black across selected ranges. These finishes allow electricians to choose an enclosure that suits the installation. Check individual products for available colours and configurations.

Which Wiska COMBI Size Should You Choose?

For compact lighting connections, consider the COMBI 206 or circular COMBI 304. The COMBI 308 provides a square layout with additional cable-entry positions, while the elongated COMBI 310 offers a different arrangement for cables and connectors.

For larger cables or installations requiring more wiring space, compare the COMBI 407, 607, 1010, 1210 and 1610. Always allow sufficient room for connectors, cable bending and safe terminations rather than selecting an enclosure by its external dimensions alone.

Understanding IP66 and IP67 Protection

Wiska COMBI junction boxes are designed for demanding indoor and outdoor installations. IP66 indicates dust-tight protection against powerful water jets, while IP67 includes protection against temporary immersion under specified conditions.

Wiska specifies IP66 protection for the COMBI series, with IP67 achievable using appropriate cable glands on compatible models. The protection achieved depends on the complete installation, including cable entries and sealing arrangements. Standard COMBI boxes should not automatically be described as IP68 rated or suitable for permanent immersion.

For detailed manufacturer specifications, cable-entry arrangements, compatible accessories and technical product data, refer to the official Wiska UK COMBI Series technical information.

Cable Entries, Connectors and Accessories

Different COMBI models use threaded membranes, membrane entries or knockouts. Compatible cable glands, blanking plugs and mounting accessories can help achieve the required installation arrangement. Selected COMBI boxes are also available with WAGO connectors, while empty versions allow suitable connectors or terminals to be selected separately.

Always check cable diameters, conductor sizes, terminal ratings, enclosure capacity and environmental requirements before installation.

Explore Wiska COMBI Boxes at Electrical4Less

Browse our Wiska COMBI junction boxes and accessories, including empty enclosures, connector-equipped models and compatible installation components. Use the individual model links above to explore each range.

Frequently Asked Questions About Wiska COMBI Boxes