XL-21 floor-type low voltage power distribution switchgear

Service conditions :

This product should not be used under conditions of fire, explosion, earthquake and chemical corrosion environments.

Production description

The XL low-voltage distribution box is suitable for power users such as power plants, substations, industrial and mining enterprises, and highway tunnels. As a power supply system with AC 50Hz-60Hz, rated working voltage 380V, rated working current up to 630A, and breaking capacity up to 15kA, it provides power conversion, distribution and control for power distribution equipment such as power, lighting and fans. Can provide overload, short circuit and leakage protection.

The XL low-voltage distribution box contain 2 Two installation structure :Indoor box structure (protection grade IP30),Outdoor box structure (protection grade IP65).Easy to install, economical and practical, there is always a suitable for you


Product code:

Technical specification:



Design plan:


Product Features:

Indoor box structure (protection grade IP30)
The distribution box frame is made of cold-rolled steel plate by bending and welding(Support for custom). After spraying process, it has good anti-corrosion performance. The internal installation beams and installation boards are made of aluminum-zinc coated or cold-rolled steel plates for galvanizing passivation. Single-sided foam glue is attached to the inner edge of the door to prevent direct collision between the door and the box body, and also improve the protection level of the door. Both the bottom plate and the top plate of the box can be reserved for cable knock-out holes to facilitate cable entry and exit. The side can be equipped with heat dissipation holes or open heat dissipation windows according to user requirements to distribute internal gas and moisture. The cabinet can be installed on the floor, wall or embedded according to user requirements. The floor-mounted distribution box is equipped with lifting lugs on the top and on both sides of the box for lifting and installation. The bottom plate of the box body is equipped with mounting holes or the foot plates on both sides of the box bottom are installed on the ground. The wall-mounted distribution boxes and embedded distribution boxes are equipped with lifting lugs at suitable positions on the bottom and both sides of the rear top of the box for lifting and installation. The door can be opened with single door or double door for easy maintenance and installation.

2. Outdoor box structure (protection grade IP65)
The distribution box frame is made of stainless steel plates by bending and welding(Support for custom). After outdoor spraying process, it has good anti-corrosion performance. The internal installation beams and installation boards are made of aluminum-zinc coated or cold-rolled steel plates for galvanizing passivation. Single-sided foam glue is attached to the inner edge of the door to prevent direct collision between the door and the box body, and also improve the protection level of the door. If there are secondary components on the panel, a double door structure is adopted. The outer door is a glass door, and the secondary components are installed on the inner door. The operating status of the equipment can be observed without opening the outer door. Cable knock-out holes are reserved on the bottom of the box to facilitate cable entry and exit. The side can be equipped with heat dissipation holes or open heat dissipation windows according to user requirements. The top is equipped with a rain-proof top cover, and the front lower part of the top cover has a heat dissipation hole to dissipate internal gas and moisture. The floor-mounted distribution box is equipped with lifting lugs at suitable positions on the top and both sides of the back of the box for lifting and installation. The bottom plate of the box body is equipped with mounting holes or the foot plates on both sides of the box bottom are installed on the ground. The wall-mounted distribution box is equipped with lifting lugs at the bottom of the rear top of the box and at suitable positions on both sides for lifting and installation. The door can be opened with single door or double door for easy maintenance and installation.

3. Bus-bar system
The main bus-bar is supported by insulating supports. The insulating support is made of high-strength, high-flame retardant PPO alloy material, with high insulation strength and good self-extinguishing performance. The box is equipped with an independent PE protective grounding system and N neutral conductor. The neutral bus bar and the protective grounding bus bar are installed in parallel in the lower part of the box, and there are holes on the PE and N rows. The protective grounding or neutral cables of each circuit can be connected nearby. If the N wire and the PE wire are separated by an insulator, the N wire and the PE wire are used separately. If in a three-phase four-wire system, the neutral bus and the protective grounding bus share the same bus (PEN line).

SUNTREE Electric production's AC circuit breaker, AC isolating switch, AC fuse, ATS, ACB, distribution box, busbar chamber, waterproof switch, and other products with leading technical level in this field. We are the first domestic company with CE, CB, IEC, Nemko, SAA, TUV, ISI, and CCC certification. Our products are widely used by domestic famous enterprises, and it has become an OEM partner of many international famous brands. We have fully implemented the IS09001: 2008 quality management system. It adopts advanced production equipment and precision detecting equipment, introduces the high-tech processes and high technology talents to provides a powerful guarantee for product development, quality upgrading, and management innovation of the company.