Mobile distribution boxes typically range in size from compact units around 300×200×150 mm to larger units exceeding 1000×600×400 mm, depending on the number of ways and application.

Typical Dimensions

Mobile distribution boxes are designed to accommodate varying numbers of outgoing circuits (ways) and protective devices. Standard configurations often include:

• Small units (1–6 ways): Approximately 300–400 mm in length, 200–250 mm in width, and 150–200 mm in height, suitable for light industrial or temporary site use .
• Medium units (6–18 ways): Around 500–700 mm long, 300–400 mm wide, and 250–350 mm high, commonly used for construction sites, events, or maintenance operations .
• Large units (18–36 ways): Typically 800–1200 mm in length, 400–600 mm in width, and 350–450 mm in height, designed for high-load temporary power distribution .

Design Features

• Raised edges and robust casing: Protect outlets and circuit breakers from physical damage, with protrusions of 50–80 mm .
• Handles and brackets: Facilitate portability and flexible mounting on stands or suspension lugs .
• Internal layout: Includes space for MCBs, RCDs, busbars, neutral and earth bars, and surge protection devices, arranged for easy wiring and heat dissipation .

Standards and Safety

Mobile distribution boxes are designed to comply with safety regulations for temporary and industrial power use, including accident prevention and protection against overloads. They are often built to meet IEC standards and local electrical codes .

Summary

The dimensions of mobile distribution boxes vary according to the number of ways and intended application, ranging from compact 300×200×150 mm units to large 1200×600×450 mm units. They feature rugged construction, protective edges, and flexible mounting options to ensure safe and reliable temporary power distribution .