Dimensions of an 8-channel power distribution box

A standard 8-channel waterproof distribution box, such as the HT-8, measures 183 × 170 × 95 mm (L×W×H).

Typical Dimensions

For compact 8-channel distribution boxes used in residential, commercial, or PV applications, the HT-8 waterproof box provides a representative example:

• Length: 183 mm
• Width: 170 mm
• Height: 95 mm
• Layout: Single-row, supporting 8 circuits
• Material: ABS base with PC transparent cover
• Protection: IP65, suitable for indoor and outdoor use Industrial or specialized units, such as the EP9208-1035 EtherCAT Box, may vary in size depending on connectors and mounting requirements, but they typically maintain a compact form factor to accommodate 8 M12 output sockets . Military or high-current 8-channel units, like the M9538, are often larger due to higher amperage handling, solid-state circuit breakers, and additional telemetry features, and their dimensions are usually defined per customer specifications .

Considerations for Selection

• Mounting: Wall-mounted or DIN-rail options affect overall footprint.
• Circuit Protection: Inclusion of fuses, breakers, or surge protection may increase enclosure size.
• Environmental Rating: IP65 or higher ratings require thicker housings for waterproofing.
• Application: PV combiner boxes, industrial automation, and military PDUs may have different form factors despite having 8 channels. In summary, while 183 × 170 × 95 mm is a common size for compact 8-channel waterproof boxes, industrial and high-current variants may be larger, and exact dimensions should be confirmed based on the specific model and application requirements .