



Cable Branch Box
Model: DFW Low-voltage Cable Branch Box
Application:
DFW low-voltage cable branch box box is made of DFW composite material by high-temperature molding. It has the advantages of good impact resistance, bending strength, aging resistance, abrasion resistance, corrosion resistance, arc resistance, high flame retardancy, high insulation strength and convenient installation. It can meet the needs of various harsh environments and places in outdoor engineering projects, and is suitable for power transmission and distribution in public places such as urban and rural power grid reconstruction, municipal engineering, residential quarters and high-rise buildings for control and protection.
Features:
● The ambient temperature is not higher than +45℃ and not lower than-35℃, and the average temperature difference for 24h shall not be greater than 35℃;
● The altitude of the place of use shall not exceed 5000m;
● The relative humidity of ambient air shall not exceed 50% at the highest temperature of +45℃, and it is allowed to have a large relative humidity (80% at +22℃) when it is used at a lower temperature. The influence of occasional condensation due to temperature change should be considered;
● The equipment shall be installed in a place where there is no violent vibration and impact, and where it is not enough to corrode electrical components;
● For use under special environmental conditions, it shall be settled through consultation between the user and our company.
Specification:
Parameter | Specification |
Rated Voltage | 400V (AC), 690V (AC) |
Rated Current | 250A, 400A, 630A, 800A, 1000A (selectable as needed) |
Rated Frequency | 50Hz (or 60Hz) |
Insulation Class | Typically Class 10 (or according to IEC standards) |
Protection Class | IP33, IP65 (dustproof and waterproof for outdoor use) |
Power Frequency Withstand Voltage | 2500V/1min (no breakdown or flashover) |
Impulse Withstand Voltage | 8kV (lightning impulse voltage) |
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