Cable branch box | 河南中盟电气设备有限公司

Cable branch box

The metal cable distribution box body is mainly made of stainless steel (304) or cold-rolled steel plate. It has mat corrosion resistance, good sealing performance, beautiful appearance, and all-weather protection function, and can meet the needs of various harsh environments and places in outdoor engineering projects. It is widely used in three-phase low-voltage power transmission and distribution systems in outdoor public places such as power transformation and distribution stations, public mining enterprises, both sides of streets, garden residential areas, high-rise buildings, airports, key construction and renovation projects, etc., as a complete set of finalized equipment for distributing electric energy to other users or equipment using cables.

Specifications

Implementation standardsGB/T7251.GB/T7251.2

Rated insulation voltageAC690V

Rated working voltageAC400V

Protection levelIP44

Rated operating current63-630A

Rated short-term endurance10KA/S

air temperatureThe maximum temperature of the indoor environment does not exceed +40℃, the maximum temperature of the indoor environment does not exceed +45℃, the lower limit of the ambient temperature is -25℃, and the daily temperature difference is 25K;

pollution levelⅢ(indoor)/IV(outdoor);

Details

Technical Parameters

Executive standards: GB/T7251.GB/T7251.2
Rated insulation voltage: AC690V
Rated working voltage: AC400V
Protection level: IP44
Rated operating current: 63-630A
Rated short-time endurance: 10KA/S

Application environment conditions

Air temperature: The maximum indoor temperature does not exceed +40℃, the maximum indoor temperature does not exceed +45℃, the lower limit of the ambient temperature is -25℃, and the daily temperature difference is 25K;
Pollution level: III (indoor)/IV (outdoor);
Humidity Degree: the daily average relative humidity is not greater than 95%, and the monthly average is not greater than 90%;
Sea Altitude: no more than 1000m above sea level;
Solar radiation intensity: 0.1W/cm²;
Earthquake tolerance: the horizontal acceleration of the landform is 0.2g m/s², the vertical acceleration of the ground is 0.15g m/s², and the safety factor for three periods of sinusoidal resonance is not less than 1.67.

Quotation standards

GB 7251 Low-voltage complete switchgear and control equipment
GB 14048 Low-voltage switchgear and control equipment
GB/T 20641 General requirements for empty shells of low-voltage switchgear and control equipment
GB 4208 Enclosure protection level (IP code)
GB 4720 Low-voltage electrical control equipment

Related Products

Single-phase one-household metal meter box

The metal meter box is mainly made of stainless steel (304) or cold-rolled steel plates. The box is resistant to high temperatures, aging, impact, corrosion, moisture, and water, and is safe and reliable. It adopts fully enclosed management of the electricity metering device and has functions such as closed metering circuit, prevention of electricity theft, and easy meter reading.

View Details →

Single phase two household metal meter box

View Details →

Single-phase four-household metal meter box

View Details →