Automatic transfer switch RDQ1

manualbusbar4-pole

RDQ1 series Dual Power Supply Auto-Transfer Switch is suitable for the power- supply system of AC 50Hz, rated operating voltage 400V, rated operating current 63 A and below. It can selectable switch between two circuit power supply according to requirements. This product has the protective functions of over-load, short-circuit, under-voltage, meanwhile, it also has the functions of fire protection, double breaking and output the closing signal, which is especially suitable for the lighting circuit of the office building, shopping mall, bank, high-rise building that required toe fire protection. Normal operating condition and installation condition 3.1 - Altitude of installation place does not exceed 2000m. 3.2 - Ambient temperature: -5°C~+40°C, average value within 24h does not exceed +35°C. 3.3 - Atmosphère condition: The relative humidity does not exceed 50% when the highest temperature is +40°C, it is allowed relatively high relative humidity at the relatively low temperature, for example, it reaches 90% when 20‘C, and it should take spécial measurements when there occurred the condensation on the products that is due to the variation of humidity. 3.4 - Grade of pollution: 3 3.5 - Installation condition: it is installed at the places that without impact vibration and without rain and snow; The upper terminal connects to the power supply side, the lower terminal connects to the load side, and the gradient between the installation side and the vertical side does not exceed 5°. 3.6 - Installation category: III 3.7 - External magnetic field of the installation place nearby does not exceed 5 times of earth magnetic field at any direction.