Distribution box dimensions wh

Distribution box widths vary by type and number of ways, typically ranging from 100 mm to over 600 mm depending on the model and application.

Typical Width Ranges

Small single-phase boxes: Widths usually start around 100–150 mm, suitable for 1–4 ways or modules. Medium multi-way boxes: For 6–12 ways, widths commonly range from 200–400 mm, accommodating more MCBs or circuit breakers. Large industrial or waterproof boxes: Widths can extend from 400 mm up to 600 mm or more, especially for 24–36 ways or multi-layer configurations like the EKDB10 series.

Factors Affecting Width

Number of ways/modules: More ways require a wider enclosure to fit additional breakers or terminals. Mounting type: Surface-mounted boxes may have slightly larger widths to allow for cable entry and clearance, while flush-mounted boxes are designed to fit within wall cavities. Protection level: IP65 or waterproof boxes often have thicker walls, slightly increasing the overall width.

Layer configuration: Single, double, or triple-layer boxes increase width to accommodate stacked rows of components. Example SpecificationsEKDB10 IP65 waterproof box: Available in widths from 200 mm to 600 mm depending on the number of ways and layers.

JUNO

N C6 series single-phase distribution board: Width varies with module count, typically 150–300 mm for domestic and light industrial applications.

AB

B Styler consumer units: Widths for 7–20 modules range approximately 200–450 mm, with ample wiring space and knock-outs for cable entry.

Practical Considerations

Always check the number of ways/modules and mounting type before selecting a box to ensure proper fit. Consider cable entry points and clearance for wiring; wider boxes provide easier installation and maintenance. For outdoor or industrial use, select boxes with IP-rated protection, which may slightly increase width compared to standard indoor boxes.

By referencing the specific model and number of ways, you can determine the exact width required for your installation needs.