Portable Electrical Distribution Box

This portable temporary power distribution box is a lightweight, mobile unit featuring a waterproof engineering-plastic housing with a distinctive yellow-and-black flip-cover design and an integrated handle, allowing for easy transport by a single person. It comes standard with an integrated three-phase industrial input plug and multiple independent 400V three-phase industrial sockets; each internal circuit is equipped with a dedicated circuit breaker to provide overload and short-circuit protection for individual lines.

With an IP65 rating for rain and dust protection, it is widely used for short-term temporary power needs-such as at construction sites, small music festivals, roadshows, exhibition booths, equipment maintenance, and landscaping projects-making it a standard portable power distribution solution for small-scale rental operations and construction crews.

Safety Protection System

Independent Branch Circuit Breaker Protection
Opening the top cover reveals two rows of modular circuit breakers; each output socket is paired with an independent miniature circuit breaker. A fault in a single device trips only the corresponding circuit, ensuring the power supply to other equipment remains unaffected.
IP65 Fully Sealed (Waterproof & Dustproof)
Sealing gaskets are fitted at socket interfaces and enclosure joints, allowing for normal operation in light rain or dusty construction environments without the need for additional rain protection.
Comprehensive Grounding Protection
A unified PE grounding busbar is installed inside the enclosure; all sockets are reliably grounded to eliminate static electricity and reduce the risk of electric shock on the job site.

Core Structure and Portable Design

Integrated Clamshell Enclosure with Handle
Features a thickened top handle and an upward-opening, dust-proof lid; closing the lid when not in use fully shields internal switching components from rain and dust. The enclosure is designed with a widened base for stability, ensuring it does not easily tip over.

Integrated Main Input Plug
A red three-phase industrial male plug is pre-installed on the right side of the unit, allowing for direct connection to generators or temporary main power cables. This eliminates the need for additional wiring, enabling immediate use upon unpacking and significantly reducing on-site setup time.
Multiple Independent Output Sockets
The left side of the unit is equipped with three sets of red 400V three-phase industrial sockets compliant with IEC 60309 standards, suitable for powering equipment such as welding machines, small fans, stage lighting, and construction cutting tools.

FAQ

1. Why are red and blue sockets used together? What is the difference in their application?
Adhering strictly to the IEC 60309 international color-coding standard, the red 400V three-phase sockets are designated for high-power equipment such as welding machines and cutters, while the blue 230V single-phase sockets are intended for lighting, control consoles, small tools, and illumination gear. This clear color distinction effectively prevents voltage mismatches and equipment burnout, thereby reducing electrical accidents on-site.

2. Can single-phase and three-phase sockets be used at full load simultaneously?
Yes. The unit features independent internal circuits and standardized wiring; the three-phase power circuits and single-phase lighting circuits operate independently without interference. It supports simultaneous full-load operation, allowing it to power high-output construction machinery and a full suite of small-scale performance auxiliary equipment at the same time.

3. Will the unit suffer from moisture or water ingress if left idle for extended periods?
No. The entire unit features an IP65 fully sealed design, with waterproof flip-covers on the sockets and tightly sealed enclosure joints. When the lid is closed during idle periods, it completely blocks out rain, moisture, and dust, ensuring the unit remains undamaged by dampness during long-term outdoor or warehouse storage.