XL-21 Power Distribution Cabinet
The XL-21 power distribution cabinet is manufactured by LYE Technology from spray-coated cold-rolled steel, in four sizes from 600 x 1200 x 370 mm to 800 x 1800 x 400 mm. A multi-hole ventilated base, reinforced door panel and height-adjustable internal crossbeams keep the cabinet cool and let components be re-planned after installation.
- Enclosure: Spray-coated cold-rolled steel
- Size range: 600 x 1200 x 370 mm to 800 x 1800 x 400 mm
- Ventilation: Multi-hole openings in the lower cabinet section
- Internal mounting: Adjustable crossbeams, height adjustable
- Hardware: High-quality lock cylinders and high-strength hinges
Power Distribution Cabinet: Key Features & Typical Use
Four Sizes Covering Common Distribution Duties
The XL-21 is offered in four combinations from 600 x 1200 x 370 mm up to 800 x 1800 x 400 mm, which covers most incoming and sub-distribution duties in a workshop, plant room or commercial building without resorting to a bespoke enclosure. Choosing a standard size keeps delivery time and spare-part support predictable.Ventilated Base and Reinforced Doors
Multi-hole openings in the lower part of the cabinet let cool air enter and warm air rise out through the top, so internal components run cooler without fans. The door panel carries stiffening bars that keep it flat and square over a long service life, which matters because a distorted door stops sealing and starts rattling within a few years.Adjustable Crossbeams for a Changing Load List
Internal crossbeams can be moved up and down, so the mounting height for terminal blocks, contactors and meter panels is set on site rather than fixed by the enclosure. When a later modification adds a component that did not exist in the original design, the cabinet is re-planned instead of replaced.Hardware and Finishing That Survive Use
The enclosure is spray-coated cold-rolled steel, which gives corrosion and rust resistance in an industrial atmosphere, and it is fitted with quality lock cylinders and high-strength hinges selected for frequent opening rather than occasional inspection. The cabinet is suitable for indoor and outdoor installation.Power Distribution Cabinet Specifications & Technical Data
| Parameter | Details |
|---|---|
| Product | XL-21 power distribution cabinet |
| Enclosure material | Spray-coated cold-rolled steel |
| Size 1 | 600 x 1200 x 370 mm (W x H x D) |
| Size 2 | 700 x 1500 x 370 mm (W x H x D) |
| Size 3 | 700 x 1700 x 370 mm (W x H x D) |
| Size 4 | 800 x 1800 x 400 mm (W x H x D) |
| Ventilation | Multi-hole openings in the lower cabinet section |
| Door construction | Reinforced panel with stiffening bars |
| Internal mounting | Adjustable crossbeams, height adjustable |
| Lock and hinges | High-quality lock cylinders, high-strength hinges |
| Installation environment | Indoor and outdoor |
| Customisation | Hole drilling, logo or character printing, specified component brands |
| Assembly option | Complete-set assembly with customer-specified components |
XL-21 — a Power Distribution Cabinet for Plant and Building Services
A power cabinet usually has to fit into a space that was designed by someone else, which is why the XL-21 is offered in four sizes rather than one. Widths of 600, 700 and 800 mm combine with heights of 1200 to 1800 mm and depths of 370 or 400 mm, so the enclosure can be matched to the available wall and the cable trench already in the floor.In project documents this enclosure appears as an XL-21 power cabinet, a low-voltage distribution cabinet or a fabricated panel board, and it is compared with modular switchgear enclosures and with wall-mounted distribution boxes. Because it is a fabricated enclosure rather than a standard switchgear assembly, the practical questions for a factory are whether the sheet metal is cut, bent, welded and coated in house and whether knockouts and printed identification can be produced to your drawings.The cabinet body is spray-coated cold-rolled steel with a ventilated base, so heat from breakers, contactors and terminal blocks leaves the enclosure without forced cooling. The door panel carries stiffening bars to prevent distortion, and internal crossbeams can be repositioned, which means a modification adds components to the existing cabinet instead of replacing it.The XL-21 is used in workshops, plant rooms, commercial buildings and outdoor equipment areas for low-voltage power distribution. Because it is a fabricated enclosure rather than a standard switchgear assembly, it also accepts non-standard work: knockouts for specific cable glands, printed identification, and complete-set assembly using the component brands your project already specifies.
Factory-Direct Power Distribution Cabinet Manufacturer & OEM / ODM
We Manufacture, You Brand
LYE Technology (Zhejiang) Co., Ltd. is a national high-tech enterprise and manufacturer in Wenzhou, China: sheet-metal fabrication, welding, powder coating, busbar machining and final assembly run on our own factory lines, and every unit is function-tested before it leaves the works. A XL-21 Power Distribution Cabinet that reaches your site carries the routine test behind it, not just the rating on the nameplate.We are one of the Top 10 Brands of China's small power distribution boxes and a drafter of national standards in this category, and we hold ISO9001, ISO14001, ISO45001, CCC, CE and TUV certification. Because we are the manufacturer rather than a trading company, our sales engineers quote from your drawing in factory-direct terms, and OEM or ODM work is produced on the same lines as our standard products.For the XL-21 we cut, bend, weld and powder-coat the enclosure on our own lines, so knockouts, printed identification and a specified component brand are normal production work.- OEM branding — custom colours, laser marking and your own project or retail packaging, applied at the factory.
- ODM options — ratings, configurations and internal layouts built around your drawings or single-line diagram.
- Certification — ISO9001, ISO14001, ISO45001, CCC, CE and TUV, with test documents supplied per project.
- MOQ — flexible quantities for a project or a trial order, with mixed types welcome in one shipment.
XL-21 cabinet with reinforced door and adjustable crossbeams
Ventilated base section with multi-hole cooling openings
Power Distribution Cabinet Buying Guide from the Manufacturer
The XL-21 is a fabricated enclosure, so the order is defined by space and component list rather than by a catalogue code. These are the points we confirm.
- Confirm the available width, height and depth, and select the nearest standard size.
- Confirm the components going inside so mounting positions and crossbeam heights can be planned.
- Confirm the cable entry direction and the number and size of knockout holes required.
- Confirm whether printed identification or a specific component brand is required.
- Send the single-line diagram, component list and any required colour or marking.
- Approve the drawing, then production, inspection and dispatch with the agreed documentation.
Manufacturer & Sales Support for Wholesale Buyers
OEM / ODM
Learn more →Factory colours · Logo marking · Custom layout
Wholesale
Learn more →Factory pricing · Flexible MOQ · Global shipping
Distributor Support
Learn more →Account manager · Drawing support · Priority lead times
Need an XL-21 Cabinet Built Around Your Components?
OEM/ODM, wholesale pricing and distributor support straight from the manufacturer — one enquiry gets you a factory-direct quotation for the XL-21 Power Distribution Cabinet, sized to your component list, available wall space and the cable entry direction at each position, with type-test documentation under IEC 60439-1. Our sales team replies with a specification and an indicative price, so send your drawings and quantity.Contact Our Sales TeamPower Distribution Cabinet — Frequently Asked Questions
What is an XL-21 power distribution cabinet?
It is a free-standing low-voltage power distribution cabinet used in industrial and commercial electrical systems. The XL-21 is fabricated from spray-coated cold-rolled steel in four sizes from 600 x 1200 x 370 mm to 800 x 1800 x 400 mm, with a multi-hole ventilated base, a reinforced door panel and height-adjustable internal crossbeams.What is an XL-21 cabinet used for?
It is used for low-voltage power distribution in workshops, plant rooms, commercial buildings and outdoor equipment areas, housing breakers, contactors, terminal blocks and metering. In practice most orders are either the main distribution point for a workshop or a sub-distribution board that feeds machinery and lighting from one location.What is the difference between a power distribution cabinet and a distribution box?
A power distribution cabinet is a floor-standing enclosure sized for heavier current and a larger component list, often in the 1200–1800 mm height range. A distribution box is a smaller wall or recess mounted enclosure for sub-circuits. Cabinet construction usually involves fabricated sheet metal with adjustable internal mounting, while boxes use standardised modular dimensions.Who manufactures industrial power distribution cabinets?
Because this is a fabricated enclosure rather than a proprietary platform, a large number of sheet-metal factories build comparable products, and the difference lies in whether the enclosure is produced on the supplier's own lines. Ask whether cutting, bending, welding and powder coating are carried out in house, and whether the finished cabinet is inspected before dispatch. LYE manufactures the XL-21 in Wenzhou on our own fabrication lines and holds ISO9001, ISO14001, ISO45001, CCC, CE and TUV certification.How much does a power distribution cabinet cost?
Indicative factory-direct pricing is roughly US$300 to US$3,000 per cabinet, depending on the size, the component list inside, the busbar work, the degree of customisation and the quantity ordered. Because the enclosure is fabricated rather than selected from a catalogue, the most accurate route to a quotation is to send the component list and the space available so the layout can be planned first.
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Use a distribution box for final circuits and compact branch protection; use a cabinet when the project needs larger incoming capacity, more feeder groups, metering, busbars or greater internal separation. The final choice should be checked against the single-line diagram, device list, available installation space and local project rules.
Provide the device schedule, circuit quantity, component dimensions, cable-entry direction, mounting method and required spare capacity. LYE also reviews door clearance, bending radius, heat-producing devices and the usable depth behind the mounting plate before confirming an enclosure size.
Start with the actual exposure to dust, rain, cleaning water and accidental contact rather than choosing the highest number by default. Cable entries, ventilation, door seals and installation workmanship affect the finished assembly, so the target rating and verification basis must be confirmed for the specific product and project.
Coated or galvanized steel is commonly considered for general indoor service, stainless steel for humid or corrosive locations, and engineering plastic for lightweight non-metallic applications. Material grade, thickness, UV exposure, chemical contact and earthing requirements must be confirmed against the installation environment.
Share the component heat load, ambient temperature, solar exposure, duty cycle and allowable internal temperature. LYE can then review enclosure volume, spacing, ventilation or fan provisions, sun shields, heaters or drainage details; the final thermal design remains tied to the installed equipment and site conditions.
Yes. A dimensioned drawing is preferred, but a physical sample and clear reference photographs can also start the review. Material, thickness, openings, hardware, finish, labels, inspection points and packing are recorded before sampling or repeat production.
PDF and common 2D CAD drawings are suitable for most enclosure enquiries, while 3D files can help with complex assemblies. Include a revision number, units, tolerances and component references; file compatibility and any missing production information will be confirmed during review.
A sample or first article can be arranged for a new or customized product. The approval plan should identify dimensions, openings, fit, appearance, hardware, labels and packaging, together with the sample cost and timing agreed for the actual order.
Available documents may include approved drawings, packing lists, dimensional or appearance inspection records, product data and certificates applicable to the confirmed model. Destination-specific declarations or third-party testing must be requested before order placement so availability and scope can be verified.
Lead time is confirmed after the product scope, quantity, sample requirement and finish are known. Packing is reviewed against product weight, surface protection, destination and shipping method; if an issue is found after delivery, send the order reference, label, photographs and quantity affected so it can be traced and reviewed.
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