Wiska Indubox 1303W — IP65 3-Way Enclosure (85x155x100mm)
Standard depth consumer unit style enclosure with a window, sized for 3 DIN-rail module ways — the smallest in the windowed Indubox range. Made from polycarbonate, so it's easy for installers to cut and drill on site.
Suitable for circuit breakers, timers and other rail-mounted modules — the window gives a clear view of switch positions without opening the enclosure.
Typical Uses:
- External power supplies
- Heating and lighting contactors
- Timer and control circuits
Comes complete with blanks to close off unused ways. Includes multiple glanding/entry points with knockouts.
Technical Details
| Protection class | IP65 |
| Glow wire test | 650 °C |
| Temp. range min | -5 °C |
| Temp. range max | 85 °C |
| Material | Thermoplastic, Polycarbonate |
| Product Color | RAL 7035 |
| External dimensions LxWxH | 85x155x100mm |
| No. Elements | 3 |
| Type | 1303 /W |
| WISKA-Order no. | 10104671 |
| Packing unit | 1 |
Frequently Asked Questions
How many DIN-rail modules does this fit?
3 ways — enough for a small MCB/RCBO or single contactor arrangement.
Does the window let me operate switches without opening the box?
No — it's a viewing window only. Open the enclosure to operate breakers or switches; the IP65 seal is maintained while it's closed.
Can I mount this outdoors or in an unheated space?
Yes — it's IP65 rated and glow-wire tested to 650°C, with a -5°C to 85°C operating range, so it's suited to outbuildings, plant rooms and other unheated areas.
Is there a larger version in this range?
Yes — see the 4-way (1304R/W), 6-way (1306BR/W) and 8-way extra-depth (1308AR/W) versions for more module capacity.
Industry Applications
- Domestic & commercial consumer unit upgrades — quick-fit IP65 housing for a small breaker or contactor circuit
- Heating & controls installers — mounting a timer or contactor for boiler or immersion circuits
- Site & retrofit electrical work — compact housing when extending or modifying existing circuits

