XM Distribution Boxes are versatile indoor electrical distribution units designed for AC 220/380V networks, supporting rated currents from 6A to 250A with modular or enclosure designs for surface or recessed mounting.

Electrical Specifications

• Rated Voltage: AC 220–250V (single-phase), AC 380–400V (three-phase)
• Nominal Frequency: 50Hz (compatible with 60Hz)
• Rated Current: 6–250A depending on model
• Busbar System: Three-phase four-wire (3P4W) or three-phase five-wire (3P5W)
• Protection Class: IP30 for indoor use
• Circuit Protection: Supports installation of MCBs (miniature circuit breakers), residual-current devices, and overvoltage/undervoltage protection devices

Physical and Structural Features

• Design Types: Enclosure type (dimensions based on overall product size) and modular type (based on number of modules for MCBs)
• Material: All-metal construction for durability and safety
• Mounting Options: Surface-mounted or recessed into walls
• Box Structure: Typically three-part detachable design (box bottom, mounting bracket, and cover)
• Terminal Blocks: Equipped with zero line (N) and grounding (PE) terminals
• Cable Entry: Knock-out holes on top and bottom; maximum incoming cable size up to 16 mm²
• Guide Rails: Adjustable horizontally and vertically to accommodate uneven wall surfaces
• Transparent Cover Option: XM5 series allows visual inspection of circuit breaker status

Environmental and Installation Requirements

• Ambient Temperature: -5°C to +40°C, 24-hour average ≤ +35°C
• Relative Humidity: ≤50% at +40°C, up to 90% at +20°C (non-condensing)
• Altitude: ≤2000 meters above sea level
• Installation Inclination: ≤5 degrees
• Vibration and Impact: No severe vibration, impact, or corrosive environments
• Pollution Grade: Third grade, suitable for standard indoor conditions

Applications

XM Distribution Boxes are widely used in:

• Residential buildings, apartments, and high-grade office buildings
• Factories, workshops, and industrial enterprises
• Hotels, ports, railway stations, airports, and warehouses
• Lighting distribution and small power distribution systems
• Temporary power distribution setups

Customization and Accessories

• Mounting Plates: Detachable galvanized or aluminum-zinc coated plates for easy installation
• Doors: Standard hinge connection for quick assembly
• Flexible Inlet/Outlet Lines: Can be installed from top or bottom according to user requirements
• OEM/ODM: Available for customized dimensions and configurations XM Distribution Boxes provide a reliable, modular, and adaptable solution for indoor electrical distribution, combining safety, flexibility, and compliance with IEC60349-1 and GB7251 standards .