2P/4P Dual Power Automatic Transfer Switch 63A Circuit Breaker Changeover Switch Fire Fighting Type 400V Surge (Size : 4P 400V)

QZLIBEFUDTransfer Switches4P Dual Power Automatic Transfer Switch 63A Circuit Breaker Changeover Switch Fire Fighting Type 400V Feature:1. 2 Circuit Breakers: Dual power transfer switch is composed of two unit miniature circuit breaker and accessories (auxiliary , alarm ), the rated current of general and standby circuit breakers can be different.2. Manual or Automatic Control: Power transfer switch has mechanical interlocking and electrical interlocking functions, with high reliability, can be powered manually or automatically.3. Single electronic starter Drive: The change over switch is driven by a single electronic starter, which is stable, noiseless, small in impact, compact in size, simple in structure, convenient in operation.4. Easy Observation: Double power automatic transfer switch is equipped with user terminal blocks, which can reflect the circuit breaker status (on or off), and there are various indications on the panel.5. Wide Purpose: The transfer switch has excellent technology, isolated anti interference, highly stable, widely used in families, shopping malls, factories, laboratories, farms and other occasion.Specification:Item Type: Dual Power Automatic Transfer SwitchMaterial: PCRated Current: 63ARated Voltage: 400V ACFrequency: 50HzNumber of Poles: 4PRated Impulse Withstand Voltage: 4 (KV)Insulation Voltage: 4000 (V)working principle:The power supply signals of dual power supply controller and drive mechanism depend on A phase and N wire of incoming port of common switch or standby switch. Under the automatic state of two way power supply, when the voltages of common switch of incoming phase A and N wire are normal (AC190-240V), the common switches are preferentially closed no matter whether the voltages of common power supply B C and standby switches a b c and N are normal. At the same time, power indicator and common closed indicator are light on. When

• Transfer Switches
• 1. 2 Circuit Breakers: Dual power transfer switch is composed of two unit miniature circuit breaker and accessories (auxiliary , alarm ), the rated current of general and standby circuit breakers can be different.
• 2. Manual or Automatic Control: Power transfer switch has mechanical interlocking and electrical interlocking functions, with high reliability, can be powered manually or automatically.
• 3. Single electronic starter Drive: The change over switch is driven by a single electronic starter, which is stable, noiseless, small in impact, compact in size, simple in structure, convenient in operation.
• 4. Easy Observation: Double power automatic transfer switch is equipped with user terminal blocks, which can reflect the circuit breaker status (on or off), and there are various indications on the panel.