Specifications of Factory Wall-Mounted Distribution Box

Factory wall-mounted distribution boxes are compact, modular enclosures designed for safe, space-efficient electrical distribution with high protection against dust and water.

Construction and Materials

Wall-mounted distribution boxes are typically made from rugged steel plates or stainless steel for enhanced durability and corrosion resistance, with reinforced bends at openings to prevent ingress of dust and water . Doors are equipped with PU compression seals to ensure IP66-level protection, and both the box and door include grounding pins for safe earthing . Doors can open up to 130 degrees, facilitating easy installation and maintenance .

Dimensions and Footprint

Boxes come in a range of sizes to accommodate different equipment and wiring needs. Typical dimensions for industrial wall-mounted enclosures range from 300×200×150 mm to 1200×800×300 mm, balancing internal capacity with thermal management and space optimization . Modular designs allow for flexible configuration to suit single-phase or three-phase systems .

Electrical Features

• Integrated Protection Devices: Many boxes include moulded-case circuit breakers (CBR) or RCBOs, providing overload, short-circuit, and residual current protection in a single device .
• Adjustable Residual Current Sensitivity: Supply connection devices can be set to 30 mA for electric shock protection or 300 mA for fire protection, potentially eliminating the need for additional RCBOs on outgoing circuits .
• Load Connections: Boxes support combinations of single-phase and three-phase loads, with incoming supply connected via switch-disconnectors, circuit breakers, RCCBs, contactors, or direct connection kits .

Mounting and Installation

Wall-mounted boxes are designed for vertical surface installation with pre-drilled mounting holes . They support top, bottom, or side cable entry, and doors are reversible with robust locking mechanisms for secure access . Compact designs allow installation in space-constrained or irregular wall surfaces .

Standards and Compliance

• Protection Ratings: IP66 or higher for dust and water resistance .
• Electrical Standards: Compliance with BS 7671:2008, Amendment 2011 (IET Wiring Regulations) and European electrical safety standards .
• Safety Features: Door locks and grounding pins meet electrical safety requirements .

Additional Features

• Modular architecture allows for easy expansion or reconfiguration.
• Doors and panels are designed for tool-free assembly in some modern enclosures, supporting faster installation and maintenance .
• Optional stainless steel construction is available for environments requiring higher corrosion resistance . These specifications make wall-mounted distribution boxes ideal for industrial, commercial, and factory applications, providing localized control, space efficiency, and high safety standards.