📌 Product Name
JXF Series Compact Terminal Distribution Box (Indoor/Outdoor Type)
1. Product Definition
The JXF series low-voltage distribution box is a compact terminal power distribution device specially designed for building power distribution systems. The rated current of the main busbar ranges from 10A to 400A, suitable for power distribution networks with AC 50Hz and rated voltage of 400V. This product is certified by GB/T 7251.3 and serves as a standard solution for end-point power distribution in buildings, residences, and commercial places.
2. Core Features
- Modular Design: Standard modulus of 18mm (1/2/4P units can be freely combined)
- Safety Protection: Fully enclosed metal box with protection grade IP41 (indoor type) / IP55 (outdoor type)
- Intelligent Upgrade: Optional power metering module (accuracy class 1.0)
- Easy Installation: Dual-purpose structure for flush mounting/surface mounting, supporting backplane/rail mounting
- Visual Operation: Transparent observation window design (optional)
3. Technical Parameters
| Item | Technical Index |
|---|---|
| Rated Voltage | AC 230/400V |
| Rated Current | Main busbar: 400A; Branch: 10A-100A |
| Short-Time Withstand Current | 6kA/1s (main busbar) |
| Protection Grade | IP41 (standard) / IP55 (outdoor type) |
| Box Material | Cold-rolled steel plate (1.5mm) / Stainless steel (outdoor type) |
| Installation Method | Flush mounting (embedding depth 110mm) / Surface mounting |
4. Typical Configuration
| Functional Unit | Configuration Scheme |
|---|---|
| Incoming Unit | 400A isolating switch (with optional fuse) |
| Power Distribution Circuit | MCB (Type C/D curve) + Earth Leakage Protector (30mA/100mA) |
| Metering Unit | Single/three-phase electronic energy meter (with optional remote meter reading module) |
| Auxiliary Components | Surge protector (8/20μs, 40kA), Power indicator light |
5. Application Scenarios
- Residential Buildings: Household distribution boxes (lighting/socket circuit distribution)
- Commercial Places: Terminal power distribution for shops and offices
- Public Facilities: Power distribution wells in corridors of schools and hospitals
- Industrial Supporting: Control boxes for small equipment
6. Innovative Design
- Quick Wiring: Spring clamp terminals (supporting 6-35mm² wires)
- Intelligent Diagnosis: Bluetooth interface fault indication (optional)
- Environmental Protection Process: Chromate-free surface treatment (compliant with RoHS2.0)
Note: This product supports the installation of mainstream MCBs such as Schneider iDPN and ABB S200, and provides the following technical services:
- Power distribution circuit load calculation
- Layout diagram of components inside the box
- Installation operation video guidance
- 3-year quality guarantee
7. Executive Standards
- GB7251.1-2013 “Low-Voltage Switchgear and Controlgear Assemblies”
- GB7251.3-2006 “Low-Voltage Switchgear and Controlgear Assemblies”
- GB7251.12-2013 “Low-Voltage Switchgear and Controlgear Assemblies”
- IEC439-1 “Low-Voltage Switchgear and Controlgear Assemblies”
8. Optional Configurations and Expansion Modules
- Smart electric meter / power quality analysis module
- RS485 communication interface (Modbus protocol)
- PLC controller, touch screen intelligent monitoring system
- UPS or diesel generator linkage interface
- Temperature and humidity sensor, heating and dehumidification device
- Leakage monitoring, fault indicator
9. Packaging and Delivery
- 100% electrical performance testing before leaving the factory
- Provide installation instructions, electrical schematics, and qualification certificates
- Standard wooden box packaging, suitable for long-distance transportation
- Delivery cycle: 15～20 working days for standard configuration; please inquire separately for customized products
10. Installation and After-Sales Service
- Attached with installation guide, supporting remote video or on-site technical guidance
- Warranty period: 12 months
- Service method: Provide 7×24-hour technical support, support regular inspection and parts replacement
- Support OEM/ODM mass customization
11. Selection Suggestions and Precautions
1. Circuit Configuration Principles
- Lighting circuit: 10A/16A MCB (Type C curve)
- Socket circuit: 16A/20A RCBO (30mA leakage protection)
- Air conditioning circuit: 25A/32A MCB (Type D curve)
2. Capacity Calculation Example
I_b = (P_total / (U_n × cosφ × √3)) × 1.2
3. Installation Specifications
- Embedded depth of flush-mounted box ≥ 120mm
- Height from box bottom to ground: 1.8m (standard) / 1.2m (barrier-free design)
- PE row cross-sectional area ≥ incoming PE line specification
4. Special Requirements
- Data center: Configure current monitoring probes
- Humid places: Choose moisture-proof box (with drainage holes)
- Explosion-proof area: Add explosion-proof transparent cover
It is recommended to provide the building electrical floor plan, and we will provide the following free of charge:
- Box size diagram
- Circuit distribution scheme
- Component configuration list
