LYD1 Single-Phase & Three-Phase Distribution Box
The LYD1 single-phase and three-phase distribution box is manufactured by LYE Technology on a compact metal platform with painted cold-rolled steel panel and enclosure. Six models cover 8 to 36 ways in brown or green, with single-phase units for residential circuits and three-phase units for machinery protection.
- Construction: Metal cover and metal enclosure, painted cold-rolled steel
- Variants: Single-phase for residential, three-phase for industrial
- Way range: 8 to 36 ways, one and two rows
- Colours: Brown and green
- Smallest model: LYD1-8: 270 x 250 x 95 mm overall
Single-Phase & Three-Phase Distribution Box: Key Features & Typical Use
Single-Phase and Three-Phase from One Product
The LYD1 covers both supply arrangements on one platform. Single-phase units are used for residential circuits where the load is domestic, while three-phase units protect machinery and equipment in industrial areas. A contractor working on a mixed-use building can therefore standardise on one enclosure family instead of maintaining two product lines.Compact Metal Construction
Both the panel and the enclosure are painted cold-rolled steel, so the box is rigid and corrosion-resistant without the bulk of a larger board. The design deliberately minimises the space required on a wall or a panel front, which is the deciding factor where a distribution point has to be squeezed into a corridor or a machine-side position.8 to 36 Ways in Two Colour Options
Six models cover 8 to 36 ways in single and double row layouts, from LYD1-8 at 270 x 250 x 95 mm up to LYD1-36/3 at 270 x 650 x 95 mm overall. Brown and green finishes are offered so the enclosure can blend with a panel colour or a site colour scheme instead of standing out.Ready for Standard Breakers
Each unit ships with the panel, the neutral and earth busbar set, a 1.0 mm DIN rail and the enclosure, so installation starts with terminating rather than assembling. Because the internal layout accepts standard circuit breakers, single-phase and three-phase wiring follow the same practical procedure across the range.Single-Phase & Three-Phase Distribution Box Specifications & Technical Data
| Parameter | Details |
|---|---|
| Series | LYD1 single-phase and three-phase distribution box |
| Cover and enclosure | Painted cold-rolled steel (metal cover, metal enclosure) |
| Supply variants | Single-phase for residential circuits, three-phase for industrial machinery |
| Way range | 8 to 36 ways |
| Row configurations | 1 row and 2 rows |
| Colours | Brown, green |
| Standard configuration | Panel, neutral and earth busbar set, 1.0 mm DIN rail, enclosure |
| LYD1-8 | 270 x 250 x 95 mm overall |
| LYD1-12 | 342 x 250 x 95 mm overall |
| LYD1-18 | 450 x 250 x 95 mm overall |
| LYD1-24 | 270 x 450 x 95 mm overall |
| LYD1-36/2 | 450 x 450 x 95 mm overall |
| LYD1-36/3 | 270 x 650 x 95 mm overall |
| Compatible devices | Standard DIN-rail circuit breakers |
| Application | Residential zones and industrial machine protection |
LYD1 — Single-Phase and Three-Phase Distribution on One Compact Platform
A building rarely uses only one kind of supply. Domestic floors run on single-phase circuits while a workshop, a lift plant room or a rooftop unit uses three-phase. The LYD1 covers both on one platform, with painted cold-rolled steel panel and enclosure and a deliberately small footprint so the box can be fitted where the circuits actually are.This board is also described as a single-phase and three-phase distribution board, a compact metal distribution box or a machine control board, and it is compared with larger wall-mounted cabinets. Because the same family covers both supply arrangements, the practical advantage for a mixed-use building is that one enclosure type, one installation method and one set of spares serve the domestic floors and the machinery areas alike.Six models span 8 to 36 ways, from LYD1-8 at 270 x 250 x 95 mm up to LYD1-36/3 at 270 x 650 x 95 mm overall, in single and double row layouts. Brown and green finishes are available so the enclosure can match a panel colour or a site colour scheme rather than being an obvious afterthought.Each unit is supplied with the panel, the neutral and earth busbar set, a 1.0 mm DIN rail and the enclosure, and takes standard circuit breakers. Single-phase units are used for residential distribution and three-phase units for protecting machinery and equipment, so one product family serves an entire mixed-use building.
Factory-Direct Single-Phase & Three-Phase Distribution Box 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 LYD1 Single-Phase & Three-Phase Distribution Box 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 LYD1 we press and coat the panel and enclosure in our own works, so a colour decision or a specific way count is handled before the production run.- 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.
LYD1 three-phase box with metal cover and enclosure
36-way LYD1-36/3 in a narrow single-column layout
Single-Phase & Three-Phase Distribution Box Buying Guide from the Manufacturer
The LYD1 is chosen for compactness and for mixing supply types, so the order settles on ways and phase arrangement. These are the points we confirm.
- Confirm which positions need single-phase and which need three-phase protection.
- Count the outgoing circuits and spare ways to fix the way count and row layout.
- Confirm the available wall or panel space and select from the six models available.
- Confirm the colour required, brown or green, and the breaker types to be fitted.
- Send the circuit schedule, floor plan and panel layout detail.
- Approve the drawing, then production and dispatch.
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 Compact Single-Phase and Three-Phase Boards?
OEM/ODM, wholesale pricing and distributor support straight from the manufacturer — one enquiry gets you a factory-direct quotation for the LYD1 Single-Phase & Three-Phase Distribution Box, sized to your circuit schedule, phase arrangement at each position and the space available on the wall, with type-test documentation under IEC 60670 and the applicable national requirements for distribution boards. Our sales team replies with a specification and an indicative price, so send your drawings and quantity.Contact Our Sales TeamSingle-Phase & Three-Phase Distribution Box — Frequently Asked Questions
What is a single-phase and three-phase distribution box?
It is a distribution enclosure offered in two supply variants: single-phase units for residential and light commercial circuits, and three-phase units for protecting machinery and equipment in industrial areas. The LYD1 provides both on one compact metal platform, covering 8 to 36 ways in single and double row layouts with painted cold-rolled steel panel and enclosure.What is the difference between single-phase and three-phase distribution?
Single-phase distribution uses one live conductor and is used for domestic and small commercial loads such as lighting, sockets and small appliances. Three-phase distribution uses three live conductors and is used for motors, larger loads and equipment that needs a rotating field. A building often needs both, which is why a single product family covering both arrangements is useful.What types of metal distribution boxes are available?
Metal boards divide by supply arrangement, by way count, by mounting method and by enclosure finish. The LYD1 is a compact metal type covering 8 to 36 ways, available in brown and green so the enclosure can be matched to a panel colour or a site scheme, and it accepts standard DIN-rail circuit breakers on the supplied 1.0 mm rail.Who manufactures single-phase and three-phase distribution boxes?
Most suppliers in this category also build household boards and industrial cabinets, so the differences are in the enclosure finish and the internal layout rather than in the basic function. Ask whether the panel and enclosure are pressed and coated by the supplier, which colours are held, and whether both supply variants come from the same enclosure family. LYE manufactures the LYD1 in Wenzhou and holds ISO9001, ISO14001, ISO45001, CCC, CE and TUV certification.How much does a metal distribution box cost?
Indicative factory-direct pricing is roughly US$5 to US$80 per unit, depending on the way count, the supply variant, the colour and the quantity ordered. Because these boards are often bought for a whole building, ordering the single-phase and three-phase variants together reduces the delivered cost compared with separate requisitions.
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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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