Collection: Terminal Boxes & JBs

IP65 & IP67 Terminal Boxes and Junction Boxes

Weatherproof terminal boxes and junction boxes (JBs) from Wiska for joining, extending and terminating cables, and for housing small DIN rail and panel mount components close to the machine. The range covers plain screw-lid boxes, boxes supplied with DIN rail already fitted, clear-lid versions, deep-lid enclosures for panel-mount instruments, IP67 junction boxes supplied complete with terminals, and consumer-unit style Indubox enclosures. All are lightweight plastic and easy to cut and drill on site.

Need a full-size panel for drives, PLCs or a larger control system? See our Wiska WDB wall mount enclosures.

Which terminal box do I need?

As a rule of thumb, start with what is going inside. For a simple cable joint, a junction box supplied with terminals - Combi - is generally the quickest option. For a small sensor or termination point, a plain WIB box does the job. For terminal blocks, relays or signal converters, choose a box with DIN rail fitted - WIB 3/DR, or CLWIB 3/DR if you want to see the relay status without opening the lid. For a panel mount PID controller or thermostat, choose a box with enough depth behind the lid - DLWIB 9 or the clear-lid CLDLWIB range. For several meters or instruments side by side, step up to a CLDLWIB 11 or 12. For a small PLC, I/O rack or multiple instruments together, the CLDLWIB 13 gives the most room. For several DIN rail modules side by side, choose an Indubox sized by the number of ways.

Wiska WIB Terminal Boxes (IP65)

The WIB is a general purpose IP65 box in thermo-resistant ABS with a gasket-sealed screw cover. The WIB 8 (130 x 90 x 65mm) and WIB 9 (150 x 110 x 75mm) are commonly used for electrical termination, cable extension and adding sensors during machinery modifications. Narrow-depth temperature controllers can also be flush mounted in the lid.

Where more depth is needed for a single instrument, the DLWIB 9 has an extended lid giving up to 130mm clearance behind the fascia, enough for standard-depth PID controllers and digital thermostats. Note that the DLWIB 9 is rated IP56 rather than IP65.

WIB boxes are available in sizes up to 460 x 380mm. If the size you need is not listed on our website, please contact us for a quotation.

Terminal Boxes With DIN Rail Fitted

The WIB 3/DR (165 x 145 x 84mm) and WIB 4/DR (230 x 180 x 88mm) are supplied with 35mm DIN rail pre-installed, which saves assembly time on site. The lid is held by four quarter-turn screws with a retaining tab so it cannot drop during installation. The WIB 3/DR takes components up to approximately 70mm deep from the rail.

The CLWIB3/DR and CLWIB4/DR are the same sizes with a clear lid, so terminals, indicator LEDs and relay status can be checked at a glance without opening the box.

Wiska CLDLWIB Clear Deep Lid Enclosures

Where the DLWIB 9 above doesn't give enough room, the CLDLWIB range steps up in size while keeping the clear lid - so a panel-mount controller, meter, or small automation assembly stays visible without opening the box. Five sizes are available: CLDLWIB9 (150 x 110 x 140mm), CLDLWIB11 (190 x 140 x 140mm), CLDLWIB12 (240 x 190 x 160mm), CLDLWIB13 (300 x 220 x 180mm) and CLDLWIB14 (380 x 300 x 180mm).

The 9, 12 and 13 are rated IP56; the 11 and 14 are rated IP65 - check the individual product page for the exact rating you need. As a guide: CLDLWIB9 suits a single small controller, 11 and 12 give room for multiple meters or instruments side by side, 13 is sized for a small PLC or I/O rack, and 14 is the largest in the range for bigger instrumentation or control assemblies.

Wiska Combi Junction Boxes With Terminals (IP67)

The Combi is an IP67 polycarbonate junction box supplied complete with terminals, ready to install. It suits general electrical wiring, outdoor lighting circuits, panel wiring junctions and machine build cable connections where a sealed, weatherproof joint is required. Three sizes are available: Combi 308/5 (85 x 85 x 51mm), Combi 607/5 (110 x 110 x 66mm) and Combi 1010/5 (140 x 140 x 82mm). Cable glands are not included.

Wiska Indubox Consumer Unit Style Enclosures (IP65)

The Indubox is an IP65 polycarbonate enclosure with a window, sized by the number of DIN rail module ways: 1303W (3 way), 1304R/W (4 way), 1306BR/W (6 way) and 1308AR/W (8 way, extra depth). Traditionally used for power distribution, it is equally useful for housing automation and instrumentation products such as digital thermostats, panel meters and other rail mounted modules. Blanks are included to close off unused ways, and knockouts are provided for cable entry. The 818A is a blank-fronted version without a window, for flush mounting instruments or internal DIN rail (rail sold separately).

What is the difference between IP65, IP56 and IP67?

All three are dust tight. IP65 protects against water jets from any direction, which generally covers outdoor and washdown-adjacent installations. IP56 protects against powerful water jets too but with slightly less dust ingress protection in some test conditions - in practice a very similar level of protection to IP65 for most workshop and panel-building uses. IP67 adds protection against temporary immersion in water, so it is commonly chosen for ground-level, exposed or flood-prone locations. The rating only holds if cable entries are sealed to the same standard, so always use suitably rated glands.

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Fitting out a terminal box? See our Push Fit DIN Terminals, Screw Terminals, DIN Rail Accessories and Tri-Rated Cable ranges.