Distribution box

HA Series Plastic Waterproof Distribution Mini Circuit Breaker Box

The Distribution Box is used for Terminal power distributing system, The Distribution Box are completed with Din-rail 35mm and Neutral Terminal (Selectable); Electrical Rating: 100A/single phase,63A/three phase, 240/415V AC 50/60Hz


Product Profile

HA Surface wall mounting AC Box Enclosure has two models: With Neutral Terminal, Without Neutral Terminal.


  • Luxurious, beautiful, durable and safe
  • Waterproof and dustproof


  • Color: RAL 7035
  • transparent lid
  • Module: 4-36 channels
  • Number of lines: 1-3
  • IP rating: IP65
  • IK level: IK09


  • Indoor and outdoor
  • Temperature: -5°C to +40°C
  • Humidity: ≤100% at 25℃


  • Rated voltage: 400V
  • Insulation voltage: 690V
  • Rated current: 75A
  • Standard: EN 60670-1, DIN EN 60670-24


  • ABS/PC
  • Temperature resistance: -25°C to +80°C
  • Halogen-free, silicon-free



Model L W H  
SHA4 142 205 97
SHA8 215 209 119
SHA12 296 256 140
SHA18 410 285 140
SHA24 298 420 140
SHA36 298 570 140

HA Series Plastic Waterproof Distribution Mini Circuit Breaker Box

Advantages of Miniature Circuit Breaker (MCB) Distribution Boxes

Miniature circuit breaker distribution boxes are widely used in residential, commercial, and industrial buildings for electrical distribution and protection. Here are the key advantages:

1. High Safety

  • Prevents Overload and Short Circuits: MCBs can quickly respond to abnormal current, cutting off power to prevent damage and fire caused by overloads and short circuits.
  • High Sensitivity: Capable of quickly detecting and responding to current changes, ensuring safe circuit operation.
  • Insulating Materials: Distribution boxes typically use high-quality insulating materials to effectively prevent electric shocks and electrocution.

2. Compact Structure

  • Space-Saving: Compared to traditional large distribution cabinets, MCB distribution boxes are smaller, making them suitable for installation in narrow spaces or inside walls.
  • Flexible Installation: They offer various installation options such as wall-mounted or embedded, providing flexibility.

3. Easy Maintenance

  • Modular Design: MCBs and other components usually adopt a modular design, making installation and replacement very convenient without the need for specialized tools.
  • Fault Indication: Many MCB distribution boxes are equipped with fault indicator lights or displays, allowing for quick fault location and resolution.

4. Cost-Effective

  • Lower Cost: Compared to other large or complex power distribution systems, MCB distribution boxes are relatively low in purchase and maintenance costs.
  • Energy Saving: Efficient current management and protection functions reduce power waste and improve energy utilization efficiency.

5. Wide Application

  • Versatile Use: Suitable for homes, offices, shopping malls, factories, and various other places, meeting diverse power needs.
  • Strong Compatibility: Compatible with various types of electrical equipment and circuits, adapting to different electrical system requirements.

6. User-Friendly Operation

  • Easy to Operate: Designed with user convenience in mind, generally featuring simple and clear operation interfaces and indicators.
  • Automatic Reset: Some advanced models have an automatic reset function, allowing normal operation to resume without manual intervention once the fault is cleared.

7. Aesthetic and Durable

  • Aesthetic Appearance: Modern MCB distribution boxes often have a simple and elegant design, blending well with different interior styles.
  • High Durability: Made with high-quality materials and advanced manufacturing processes, they offer long service life and good environmental resistance.

8. Good Expandability

  • Supports Expansion: Can easily add or replace breakers based on actual needs, accommodating increasing power demands.
  • Functional Upgrades: Many distribution boxes support additional modules such as surge protection and residual current protection, providing comprehensive electrical protection.