Indoor Wall-Mount Steel Electrical Distribution Box

Product Overview

This indoor wall-mount distribution enclosure is a standard sheet metal housing designed for low-voltage electrical distribution and control systems installed in dry indoor environments. It is constructed from premium cold-rolled carbon steel through precision CNC bending and welding, with a smooth electrostatic powder coating finish for corrosion protection and a clean industrial appearance.

The box adopts a space-saving wall-mounted design with pre-drilled back mounting holes for quick and secure installation on interior walls, equipment rooms and electrical shafts. The internal mounting surface is pre-punched with standard hole patterns, supporting flexible assembly of 35mm DIN rails, terminal blocks, circuit breakers, contactors and other electrical components. The integrated lockable plane handle ensures secure closing and prevents unauthorized operation, protecting internal live parts and ensuring power system safety. It is widely applied in residential buildings, commercial offices, industrial workshops, infrastructure facilities and public utilities for power distribution, lighting control and equipment junction.

Key Product Features

✅ High-Grade Cold-Rolled Steel Body Manufactured from high-quality cold-rolled carbon steel sheet with excellent mechanical strength, impact resistance and deformation resistance. Stable and durable for long-term indoor installation, suitable for both light commercial and industrial environments.

✅ Electrostatic Powder-Coated Finish Full-surface electrostatic powder coating with uniform, strong adhesion film. Smooth matte surface, good corrosion and scratch resistance, maintains appearance and protection performance after years of service.

✅ Lockable Plane Handle with Key Flush-mounted plane latch with key lock function. Prevents unauthorized access and accidental operation, ensures electrical safety management. Flush design keeps a neat exterior profile and avoids catching on passing personnel or equipment.

✅ Wall-Mount Space-Saving Installation Pre-formed mounting holes on the back panel for direct wall fixing with expansion bolts. Mounts flush to the wall, saves floor and walkway space, ideal for corridors, electrical rooms, shaftways and space-limited installation sites.

✅ Flexible Internal Configuration Standard pre-punched mounting hole pattern inside the box, fully compatible with 35mm DIN rails, mounting plates, terminal blocks and earthing bars. Can be customized with internal structure and fittings according to electrical schematic requirements.

✅ Precision Sheet Metal Workmanship High-precision CNC bending and seamless welding process. Regular box structure, uniform door gap, flat and burr-free edges. High fitting accuracy between door and body for consistent appearance and reliable closing.

✅ Indoor Optimized Protection IP30 / IP40 ingress protection rated for indoor dry environments. Protects internal components from solid foreign objects and accidental direct contact, meeting the safety requirements of indoor low-voltage distribution systems.

Technical Specifications

Application Scenarios

• Residential building main distribution boards and household branch circuits
• Commercial office, shopping mall and hotel low-voltage distribution systems
• Industrial workshop lighting, auxiliary circuit and equipment control boxes
• Campus, hospital and infrastructure public facility power distribution
• Automation equipment and machine control junction enclosures
• Weak current system, monitoring and communication equipment housings

Our Advantages

1. Full range of standard sizes in stock Rich standard dimension options covering small junction boxes to medium power distribution boxes. Support mixed batch orders for electrical contractors and panel builders, with fast bulk shipment available.
2. Stable and consistent manufacturing quality Mature sheet metal and powder coating process with strict dimensional tolerance and appearance inspection. Regular box shape, uniform coating, burr-free edges, ready for direct installation out of the box.
3. High customization flexibility Support custom box dimensions, door opening direction, cable entry positions and internal structure. Can also pre-assemble DIN rails, terminals and components according to customer BOM and electrical drawings.
4. Cost-effective industrial grade value Industrial mass production with stable quality and competitive pricing. Cost-effective solution for distribution projects, renovation projects and equipment OEM matching.
5. Complete project technical support Provide dimension drawings, drilling drawings and installation manuals to support project design and tender bidding. Fast response for overseas business consultation and technical support.

Custom Solution

We provide project-oriented custom solutions for indoor distribution enclosures:

• OEM Brand Customization: Custom silk-screen logo, warning marks and nameplate on box body for distributor branded resale.
• Size & Structure Customization: Custom box dimensions, door opening direction, cable gland openings and internal mounting structure according to project requirements.
• Internal Configuration Customization: Pre-installed DIN rails, terminal blocks, earthing bars and mounting plates according to your electrical schematic and BOM.
• Export-grade Custom Packing: Neutral carton, customer-branded packaging, shockproof reinforced packing for long-distance sea transportation.
• Large-order Priority Production: Priority production schedule for large project and engineering orders to guarantee delivery lead time.

Share your box size requirement, internal component layout and application scenario, our engineers will provide targeted enclosure solution within 24 working hours.

FAQ

Q1: What is this electrical distribution box mainly used for?

A: It is an indoor wall-mounted enclosure used to house and protect low-voltage electrical components such as circuit breakers, terminal blocks and contactors, for power distribution, lighting control and equipment control circuits.

Q2: What material is this distribution box made of?

A: The box body is made of high-quality cold-rolled carbon steel, with electrostatic powder coating on the surface, which features good mechanical strength, corrosion resistance and a smooth matte appearance.

Q3: Is this box suitable for outdoor installation?

A: No. This is an indoor distribution box with IP30/IP40 protection grade, designed for dry indoor environments. For outdoor applications, we recommend our IP65 waterproof outdoor enclosure series.

Q4: Can I install standard DIN rails and circuit breakers inside?

A: Yes. The box has pre-drilled internal mounting holes compatible with standard 35mm DIN rails and all mainstream modular electrical components. Internal mounting plates are also available on request.

Q5: Does it come with a lock and keys?

A: Yes. It is equipped with a flush plane lock with a set of keys, which can lock the door to prevent unauthorized operation and ensure the safety of the power distribution system.

Q6: Do you support custom size and logo printing?

A: Yes, we support custom box dimensions, opening positions and logo printing. A certain minimum order quantity applies for custom specifications.

Q7: How is this distribution box installed?

A: It adopts wall-mounted installation. There are pre-drilled mounting holes on the back panel, which can be fixed on solid walls with expansion bolts or mounted on equipment supports.

Package Content

1 × Indoor Wall-Mount Steel Electrical Distribution Box 1 × Key Set