Temporary power distribution box specifications and models

Temporary power distribution boxes provide portable, safe, and versatile power distribution for construction sites, events, and industrial applications, with models ranging from 20A to 800A and multiple outlet configurations.

Key Specifications

Voltage and Amperage: Common units support 125/250V or 120/208V systems, with amperage ratings from 20A to 800A depending on the model and application. Typical contractor-grade boxes include 20A, 30A, 50A, and 60A circuits, with both single-phase and three-phase options. Outlets and Receptacles: Units often feature a combination of 15/20A duplex outlets, 30A and 50A twist-lock receptacles, and locking style connectors for secure connections.

Some models, like Southwire's yellow boxes, include GFCI-protected 125V/20A outlets with indicators and high-voltage shutoff protection. Lex Products' Load Master™ series offers adjustable circuit breakers to match specific load requirements. Safety Features: GFCI protection for outlets to prevent electrical shock.

Overcurrent protection via circuit breakers for each outlet or branch circuit. Open-neutral and reverse-phase protection in many models. Compliance with UL 1640 and UL 943 standards for temporary power and GFCIs.

Construction and Durability: Rugged, impact-resistant enclosures, often in high-visibility yellow for safety. Weatherproof covers to protect outlets from dirt and moisture. Compact and portable designs for easy transport and setup on job sites or events.

Popular Models and Brands

Hubbell Spider Boxes: Available in 30A, 50A, and 60A configurations with multiple 20A outlets and locking inlets/outlets. Designed for construction sites and outdoor events with rugged enclosures and easy setup. Southwire Temporary Power Boxes: Yellow units with GFCI-protected 125V/20A outlets and additional 250V/30A turn-lock receptacles.

Ideal for disaster restoration, compact setups, and portable generator connections. Lex Products Load Master™ Series: Adjustable output ratings with 1, 3, or 4 circuit breakers for flexible load management. Certified to cULus standards, suitable for entertainment, industrial, and military applications.

Boels D

E 63A Box: Designed for building site connections with daily or weekly rental options. Focused on utility connections and temporary power distribution for construction projects. Power Tech® Temporary Power Distribution Box: ETL-approved for indoor/outdoor use with GFCI-protected U-Ground outlets.

Heavy-duty steel construction with yellow epoxy paint for visibility and durability. Multiple 15/20A outlets, 30A and 50A twist-locks, and circuit breaker protection.

Applications

Construction sites, roofing, and general contractingEntertainment events, trade shows, and outdoor lightingDisaster restoration and temporary generator connectionsIndustrial and military temporary power setups These boxes provide a safe, portable, and flexible solution for distributing power in temporary or dynamic environments, with models tailored to specific amperage, voltage, and outlet requirements.