ABX-T Type Underground Loop Box (Steel Enclosure)
ABX-T type loop box shell is manufactured from standard cold-rolled steel plate, with the surface processed through electrostatic spray-powder coating technology for enhanced corrosion resistance and a professional finish. Its aesthetically pleasing design is suitable for both surface-mounted (exposed) and flush-mounted (concealed) installation in indoor and sheltered outdoor environments.
The internal structure is rationally designed with spacious wiring channels and large internal capacity, accommodating multiple cable entries and terminations with ease. Stable electrical performance and safe operation are ensured through a multi-layer protective shield that physically isolates the operator from live components, achieving a protection degree of IP40. The box body and component mounting plate are designed for multi-level disassembly and assembly, simplifying installation, maintenance, and future circuit modifications.
The practical scope is extremely wide — the ABX-T series lighting and power terminal box products are manufactured for lighting and power distribution systems in new residential buildings, industrial plants, shopping malls, factories, mines, office buildings, and other commercial and industrial facilities.
Technical Specifications
| Item | Specification |
|---|---|
| Rated Voltage | 400V AC |
| Rated Frequency | 50Hz / 60Hz |
| Rated Current (Main Busbar) | Up to 630A |
| Rated Short-time Withstand Current (Icw) | 15kA / 20kA (1s) |
| Degree of Protection | IP40 (enclosure) |
| Enclosure Material | Cold-rolled steel plate |
| Surface Treatment | Electrostatic spray-powder coating (anti-corrosion) |
| Installation Type | Surface-mounted (exposed) / Flush-mounted (concealed) |
| Internal Isolation | Multi-layer protective shield between operator compartment and live parts |
| Component Mounting | Removable component mounting plate with DIN rail configuration |
| Cable Entry | Bottom / side entry with knock-out openings |
| Door Type | Hinged steel door with lockable handle |
| Standards | GB/T 7251, IEC 61439 |
Key Features
- Robust Steel Enclosure Construction: Manufactured from standard cold-rolled steel plate with electrostatic spray-powder coating, providing excellent mechanical impact resistance, corrosion protection, and a uniform professional finish — suitable for long-term indoor service in industrial, commercial, and residential environments
- Flexible Installation Options: Compact design supports both surface-mounted (exposed conduit) and flush-mounted (concealed in wall recess) installation methods — providing installation flexibility for different building construction types and architectural requirements
- Multi-Layer Operator Protection: Internal protective shields physically isolate the operator from live busbars and component terminals when the door is opened for inspection or maintenance, achieving IP40 protection against solid objects greater than 1mm — significantly reducing the risk of accidental contact with energized parts compared to open-type distribution boards
- Spacious Internal Wiring Capacity: Generous internal dimensions and uncluttered layout provide ample wiring space for cable bending radius compliance, multiple circuit entries, and convenient tool access — reducing installation time and ensuring reliable, long-lasting electrical terminations
- Modular Component Assembly: The component mounting plate can be fully assembled with DIN-rail mounted devices (MCBs, RCCBs, RCBOs, contactors, and terminal blocks) outside the enclosure and then installed as a complete assembly — significantly reducing on-site wiring time and improving build quality
- Multi-Level Disassembly: Both the door assembly and internal component mounting plate can be easily removed for convenient access during installation and major maintenance — the door can also be reversed for alternate hinge-side opening to suit site layout requirements
- Durable Surface Protection: Electrostatic spray-powder coating with minimum 60μm thickness provides excellent adhesion, uniform coverage, and long-lasting corrosion protection — resistant to scratching, chipping, and fading in normal indoor service conditions
- Wide Application Versatility: Suitable for lighting and power terminal distribution across a broad range of facility types — new residential buildings, industrial plants, commercial shopping centers, factory workshops, mining facilities, and office buildings
Applications
- Residential buildings — apartment and house lighting and power distribution
- Industrial plants — machine power and workshop lighting distribution
- Shopping malls and commercial centers — lighting and socket outlet distribution
- Office buildings — floor-level lighting and power terminal distribution
- Factory workshops — equipment power supply and lighting control
- Mines and industrial facilities — general power distribution in non-hazardous areas
- Commercial retail outlets — small commercial power distribution