An overview of the

3TQ2series double the power switch is used in ac 50 hz, rated voltage 690 v and the following two way power supply system, can accomplish common power supply and standby power automatic conversion without artificial operation. This switch is in conformity with the national GB/T14048.11-2002 automatic switch electrical standard the following terms:

• As institutions should have reliable electrical and mechanical interlock, to prevent were used at the same time the power supply and backup power.

• Switch on the power is commonly used to detect any and all within the scheduled time after each phase voltage interruption, will load from common power transfer to the standby current, and when the common power supply back to normal, will return to exchange to common power supply load (it has the functions of fault protection)

• Switch may according to user requirements set power down when switching voltage range.

3TQ2-63automatic switch electrical appliances is derived in the terminal 3 tq2m series type automatic switching device, applied to ac 50 hz, rated voltage AC400V / 230 v, rated current 63 a three-phase four-wire (can also be used to phase one line) of double power supply grid, automatically load circuits from a power source connected to another power supply, to ensure the normal supply of the load circuit.

The product is suitable for use in industrial, commercial, business layer and civilian residential and other important places.

This product conforms to the IEC60947-6-1, GB/T14048.11 standards.