KBQ3 series dual power automatic transfer switch, which applies to the exchange rated voltage not exceeding 415V (660V), rated frequency 50/60Hz, rated current 100A and below, dual power switching power supply system. To ensure that hospitals, shopping malls, banks, fire, communications, high-rise buildings and other places do not allow power supply. 
 The long product meets GB14048. 11 Standard IEC60947-6-1 standard. 
 The product structure is simple, practical and easy to operate, life plant, 2P-4P flexible combination. 
 This product is a small molded case circuit breaker with high breaking with breaking capacity circuit breaker and characteristics. 
 This product has undervoltage, phase loss protection. 
 This product has the power interlock switch process and mechanical interlock to ensure two-way power can not supply. 
 Conversion system using direct excitation instantaneous power sector to complete the switching process can delay, adjustable by the electromagnetic coil current does not work. No noise, power saving. 
 Commonly used in the primary circuit of a power failure to immediately switch to backup power to ensure constant power supply, power supply troubleshooting common, automatically switch to the common cluster standby power supply. 
 Ambient air temperature does not exceed the upper limit of +40 ℃, and the lower limit of not less than -25 ℃, 24h average temperature does not exceed +35 ℃. 
 Installation site altitude does not exceed 2000M. 
 Installation site of the air relative humidity maximum temperature of +40 ℃ not more than 50%. At lower temperatures have higher relative humidity, the wettest month of the monthly mean maximum relative humidity of not more than 90%. Meanwhile, the monthly average minimum monthly temperature does not exceed +25 ℃, and consider the product due to temperature change occurs on the surface of condensation. 
 Pollution degree 3. 
 Installation category II, III class. 
 When the commonly used power supply voltage is normal, when the function keys placed on autopilot, OR (standby power) points, ON (normal power) together, to ensure that common pain load power connection, two commonly used supply voltage indicator. If When the commonly used power failure, phase or voltage, (voltage below 85% of rated voltage), the common power supply automatically switches to backup power, backup power supply indicator light, standby power supply indicator light, if used after the power supply troubleshooting The product will automatically switch to the common power supply. In the process of switching delay time can be adjusted. (For user adjustment, general adjustment of the factory in 0.5S).