The HT is a compact, IP65-rated waterproof distribution box designed for safe and efficient electrical circuit management. It is ideal for both indoor and outdoor use, providing reliable protection for circuit breakers in residential, commercial, and industrial applications.
Key Features
- IP65 Protection: Dust-tight and water-resistant, suitable for outdoor and harsh environments.
- Durable Construction: Made from high-quality flame-retardant ABS+PC plastic for impact resistance and long-term durability.
- Transparent Cover: Allows visual inspection of circuit breakers without opening the enclosure.
- Easy Installation: Includes a DIN rail for quick mounting of MCBs and pre-punched knockouts for cable entry.
- Compact Design: Space-saving dimensions for versatile placement.

Technical Specifications
1. Core General Parameters
| Product Name | HT Series Surface-Mounted Waterproof Distribution Box (MCB Enclosure) |
|---|---|
| Ingress Protection | IP65 (dust-tight, protected against water splashes from any direction); IK08 impact resistance |
| Applicable Standards | IEC 60529, GB 7251.3, CE, RoHS |
| Rated Electrical Parameters | Rated voltage: AC 220V/380V (50/60Hz); Rated insulation voltage: ≤400V; Max. load current: ≤125A |
| Environmental Adaptability | Operating temperature: -30℃~+70℃; Humidity: ≤95% (non-condensing); UV-resistant and corrosion-resistant |
| Mounting Method | Surface-mounted (wall-fixed) |
2. Material and Structural Parameters
| Component | Material/Process | Key Features |
|---|---|---|
| Box Base | Flame-retardant ABS engineering plastic (V0 grade) | Good insulation, lightweight (approx. 1/4 of steel boxes), anti-aging |
| Transparent Cover | High-toughness PC (polycarbonate) | High light transmittance (for easy internal observation), impact-resistant, high-temperature resistant |
| Sealing Structure | Integrated silicone sealing ring | Adhesive dispensing process ensures IP65 protection, suitable for humid environments |
3. Full Specification Dimensions and Weights (Mainstream Circuits)
Note: Dimensions are external dimensions (L×W×H, in mm); there may be a ±3mm error due to different manufacturer molds, subject to the actual product.
| Model (Circuits) | Rows | External Dimensions (L×W×H) | Neutral/Earth Bar Configuration | Net Weight (kg) |
|---|---|---|---|---|
| HT-2 Circuits | Single row | 50×115×90 | Simple terminal posts | 0.15 |
| HT-5 Circuits | Single row | 110×150×90 | Neutral bar: 3 holes / Earth bar: 3 holes | 0.34 |
| HT-8 Circuits | Single row | 192×145×90 | Neutral bar: 5 holes / Earth bar: 5 holes | 0.53 |
| HT-12 Circuits | Single row | 245×190×110 | Neutral bar: 8 holes / Earth bar: 8 holes | 0.84 |
| HT-15 Circuits | Single row | 310×210×110 | Neutral bar: 8 holes / Earth bar: 8 holes | 0.90 |
| HT-18 Circuits | Single row | 365×205×110 | Neutral bar: 8 holes / Earth bar: 8 holes | 1.07 |
| HT-24 Circuits | Single row | 275×370×110 | Neutral bar: 12 holes / Earth bar: 12 holes | 1.35 |
4. Application Scenarios and Notes
- Compatible Components: Can be installed with household miniature circuit breakers (MCB), residual current circuit breakers (RCBO), PV convergence components, and other modular electrical devices (modular width: 18mm/module).
- Typical Applications: Outdoor lighting, balcony/bathroom power distribution, new energy vehicle charging piles, light industrial power distribution, marine/chemical auxiliary circuits.
- Usage Reminders: The box is only a protective enclosure; internal electrical components need to be separately matched to load power. For outdoor installation, it is recommended to use waterproof connectors for enhanced protection.
Package Includes
- Distribution box enclosure
- Internal DIN rail
- Mounting hardware
- Cable gland knockouts
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