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Power Distribution Cabinet Manufacturer & Custom OEM Supplier

Anhui Yanyue Intelligent Technology manufactures factory-assembled power distribution cabinets, panelboards, and industrial control enclosures (up to 690 V, main busbar up to 800 A). Built to IEC 61439-1/3 and NEMA/IP standards, each enclosure provides secondary circuit protection, energy metering, and power routing for industrial workshops, commercial facilities, and outdoor utility infrastructure.

Power distribution cabinets divide main electrical feeds into secondary branch circuits, supplying power to machinery, lighting networks, and HVAC systems. Constructed with precision-welded steel or stainless steel enclosures, these cabinets house main isolators, circuit breakers, surge protective devices (SPD), and terminal blocks in compact wall-mounted or floor-standing configurations.

Electrical Power Distribution Cabinet
Electrical power distribution cabinet is a complete power distribution cabinet solution covering incoming power, outgoing circuits, compensation units, and terminal distribution functions. It is
Industrial Electrical Cabinet
Industrial electrical cabinet is an industrial-grade power distribution cabinet designed for factories, manufacturing workshops, and heavy-duty production environments. It provides stable power
Outdoor Electrical Distribution Cabinet
Outdoor electrical distribution cabinet is an integrated outdoor power distribution cabinet designed for open-air electrical projects without the need for additional indoor distribution rooms. It
Final Distribution Board
Final distribution board is a compact terminal distribution box designed for building lighting, socket circuits, and small equipment protection. With a space-saving structure and easy installation,
AC Power Panel Cabinet
AC power panel cabinet is a complete low voltage AC distribution cabinet designed for 400V power systems. It is suitable for incoming power, power distribution, and energy metering applications,
LV Power Distribution Cabinet
LV power distribution cabinet is a general-purpose low voltage power distribution cabinet designed for factory plants, industrial parks, and large-scale electrical projects. It serves as a main power
Power Distribution Panel Box
Power distribution panel box is a medium-sized integrated distribution cabinet designed for industrial equipment and lighting circuit power supply. It provides reliable branch power distribution
Electrical Enclosure Box
Electrical enclosure box is a compact wall-mounted low voltage distribution box designed for terminal lighting, socket circuits, and small equipment power distribution. With a compact structure and
Motor Control Center Cabinet
Motor control center cabinet is an XL series power control cabinet designed for 0.4kV motors, pumps, fans, and other industrial equipment. It integrates contactors, thermal overload relays, circuit
Motor Control Cabinet
The XL-21 series low-voltage power distribution cabinet is designed for industrial and civil buildings. It operates in AC 50 Hz systems with a rated voltage of up to 500 V. It is suitable for
Electrical Distribution Cabinet
The JXF distribution cabinet is designed for power distribution systems. Its main function is to distribute electrical power from the supply source to low-voltage equipment while providing protection
Distro Power Box
A power distribution box is a device used for power distribution and control in electrical systems. It is mainly applied in industrial, commercial, and residential buildings. It typically includes

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Structural Architecture & Enclosure Protection

Enclosure Construction

Fabricated from 1.5 mm to 2.0 mm cold-rolled steel, galvanized steel, or stainless steel (Grade 304/316L) with continuous seam welds to ensure structural rigidity under mechanical impact.

Internal Layout & Din-Rail System

Features adjustable zinc-plated DIN rails and segmented mounting plates, providing structured separation between incoming supply terminals and branch distribution breakers.

Cable Management

Removable top and bottom gland plates with high-density polyurethane sealing gaskets simplify cable gland installation and field wiring termination.

Ingress & Corrosion Protection

Polyurethane foam-in-place door gaskets achieve IP55, IP65, or NEMA 3R/4X protection ratings. Enclosure surfaces undergo iron-phosphate pretreatment followed by electrostatic polyester powder coating (thickness >= 80 um) to resist industrial atmospheric corrosion.

Product Selection

Technical Parameter	Standard Specification Range
Rated Operational Voltage (Ue)	230 V / 400 V / 480 V / 690 V
Rated Insulation Voltage (Ui)	800 V / 1000 V
Rated Frequency	50 Hz / 60 Hz
Main Busbar Current (In)	100 A / 160 A / 250 A / 400 A / 630 A / 800 A
Branch Circuit Outgoings	4 to 42 ways (MCCB / MCB / RCBO)
Rated Short-Time Withstand Current (Icw)	10 kA / 25 kA / 35 kA / 50 kA (1s)
Enclosure Ingress Rating	IP54 / IP55 / IP65 / NEMA 3R / NEMA 4 / NEMA 4X
Enclosure Material	Cold-Rolled Steel / Hot-Dip Galvanized / Stainless Steel 304 / 316L
Sheet Metal Thickness	Frame & Body: 1.5 mm - 2.0 mm; Mounting Plate: 2.0 mm - 2.5 mm
Installation Type	Wall-Mounted / Floor-Standing / Column-Mounted

OEM / Custom Configuration

We build custom power distribution cabinets according to customer single-line diagrams, component preferences, and physical space limits.

Engineering Process Flow:
(1)Schematic Drawing & Cable Entry Review -> (2) 3D Enclosure Layout & Sheet Metal CAD Modeling -> (3) CNC Laser Cutting, Punching & Bending -> (4) Powder Coating & Gasket Foaming -> (5) Component Mounting, Busbar/Wiring Installation & FAT

Customization Options
Switching Components: Molded Case Circuit Breakers (MCCB), Miniature Circuit Breakers (MCB), Residual Current Devices (RCD/GFCI), and fuse switches from Schneider, ABB, Siemens, Eaton, Chint, or customer-specified suppliers.

Metering & Automation: Multi-channel digital power meters, RS485/Modbus communication modules, current transformers (CT), and automatic transfer switches (ATS) for emergency backup power.

Outdoor & Environmental Adaptation: Anti-condensation space heaters, rain hoods/sloped roofs, stainless steel door latches, and filtered ventilation louvers for high-humidity installations.

Custom Terminal & Labeling: Laser-engraved phenolic nameplates, heat-shrink wire sleeves, and customized terminal block layouts according to project schedules.

Applications

Industrial Manufacturing Workshops

Centralized power distribution panels for CNC machine tools, conveyor lines, and motor loads.

Commercial Real Estate & MEP Projects

Floor-by-floor sub-distribution panels for commercial office buildings, shopping centers, and hotels.

Outdoor Utilities & Infrastructure

Weatherproof power distribution boxes for water treatment stations, street lighting networks, and construction sites.

Renewable Energy Facilities

AC combiner boxes and auxiliary power distribution panels for solar PV inverter stations and battery storage enclosures.

Procurement, Testing & Delivery

Manufacturing Precision & Quality Control
CNC Sheet Metal Fabrication: Automated CNC laser cutters and press brakes process steel sheets with a dimensional tolerance of +/- 0.1 mm, ensuring flush door alignment and tight enclosure seams.

Polyurethane Gasket Application: Automatic CNC polyurethane foaming machines apply seamless, poured-in-place sealing gaskets directly onto cabinet door channels to guarantee long-term IP65 sealing.

Busbar & Terminal Wiring: Internal copper busbars are nickel- or tin-plated to eliminate contact oxidation. Control and power wiring are routed through insulated PVC wiring ducts with ferrules on all wire terminations.

Factory Acceptance Testing (FAT)
Every power distribution cabinet undergoes 100% routine inspection before packing:

Insulation resistance measurement (>= 10 Mohm at 1000V DC test voltage).

Dielectric power frequency withstand test (2500V AC for 1 minute between live parts and grounded metal frame).

Ground continuity test (earth bonding circuit resistance <= 0.1 ohm).

Mechanical door latching, hinge operation, and key interlock verification.

Secondary control circuit continuity and breaker manual/electrical trip simulation.

Packaging & Transport

High voltage and low voltage cabinets are separately packed in fumigated wooden export cases with independent protection for precision components.

Support EXW factory pickup and FOB designated port shipment.

Export packages are marked with high voltage/low voltage, waterproof, and shockproof labels.

Modular packaging reduces shipping volume and minimizes damage risks during transportation and installation.

Our Certificate

FAQ

Q: How do you ensure IP65 waterproof performance on outdoor power distribution cabinets?

A: Outdoor cabinets utilize continuous seam welding on all body joints, a top sloped rain canopy, and a seamless polyurethane foam-in-place gasket applied via automated CNC dispensers. Cable entry plates located at the bottom are fitted with compression cable glands and sealing rubber rings.

Q: Can you manufacture distribution cabinets according to our schematic drawings and specified breaker brands?

A: Yes. Send your single-line diagram (SLD) or bill of materials (BOM) specifying component brands (e.g., Schneider, ABB, Siemens). Our engineering team generates 3D general arrangement drawings and internal wiring layouts for sign-off prior to production.

Q: What surface pretreatment is used to prevent rust in humid environments?

A: Sheet metal enclosures undergo a multi-stage chemical pretreatment process involving degreasing, water rinsing, and iron phosphating. An electrostatically applied polyester powder coat (80 to 100 um thickness) is then baked at 200 deg C, providing high corrosion resistance under salt spray conditions.

Q: What sheet metal thickness options are available for industrial enclosures?

A: Standard cabinets use 1.5 mm thick cold-rolled steel for doors and body panels, with 2.0 mm to 2.5 mm zinc-plated steel for internal mounting plates. For heavy-duty industrial or floor-standing units, 2.0 mm steel is used throughout the structure.

Q: What internal separation or wiring organized structure is provided?

A: Internal layouts utilize PVC wire trunking channels, DIN rails, and transparent protective polycarbonate shrouds over live busbars to prevent accidental touch during maintenance.

Q: What quality documentation is included with the shipment?

A: Shipments include a Factory Acceptance Test (FAT) certificate, circuit schematic diagrams attached inside the cabinet door pocket, dimension drawings, and material test reports upon request.

Request a Quote

Submit your project drawings, Single-Line Diagram (SLD), or enclosure specifications to receive a customized technical proposal and Bill of Materials (BOM) quote within 24 hours.

Email: 15955042303@163.com

Direct Line / WhatsApp: +86 18255095123

Factory Address: Room 307, 3rd Floor, Building B, Entrepreneurship Center, East of Jingsan Road and North of Tianchu Road, Anhui Economic Development Zone, Tianchang City, Anhui Province, China

As one of the leading power distribution cabinet manufacturers and suppliers in China, we specialized in providing high quality customized products to global clients. Please feel free to buy bulk advanced power distribution cabinet for sale here from our factory. Contact us for pricelist.

Motor Control Cabinet, Electrical Distribution Cabinet, Industrial Power Distribution Box

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