3SAQ2, CB class, up to 800 A

3SAQ2 series automatic transfer switches are made up of two pieces of 3-pole or 4-pole MCCB and accessories (including auxiliary and alarm contacts), mechanical interlocking and electronic trip unit etc. As the terminal automatic switching devices, they are applied for the grid with double power supply of AC 50 Hz or 60 Hz, the rated current up to 800 A of three phase four line (available for one phase one line also). When one.

Standards

IEC 60947-6-1

Instruction of Type Code

Features

●   Small size, easy to instal

●   Advanced digital electronic control technology

●   Driven by single motor

●   Double interlock protection

●   Double protection of mechanical interlock and electrical interlock prevents the two power supply from being connected at the same time. The electrical interlock adopts the way of directly indicating fuse contact position of automatic switch to achieve true electric interlock-to prevent the automatic transfer

●   Under conditions such as contact fusion welding, breaker handle damaged, circuit-breaker fault trip etc

●   Low power consumption and lower level noise

●   Complete functions as shown in the following pictures

●   Isolation function

Technical Parameter

Controller

Function

LCD Display of Controller

①  Displaying the status of A phase for normal power supply. No display if abnormal

②  Displaying the status of B phase for normal power supply. No display if abnormal

③  Displaying the status of C phase for normal power supply. No display if abnormal

④  Displaying the status of A phase for standby power supply. No display if abnormal

⑤  Displaying the status of B phase for standby power supply. No display if abnormal

⑥  Displaying the status of C phase for standby power supply. No display if abnormal

⑦  Displaying the double open status

⑧  Indicating the controller is in manual control mode

⑨  Indicating the controller is in automatic control mode

⑩  ndicating the normal power supply is closed

⑪  Indicating the standby power supply is closed

⑫  Display the control mode

⑬  Display the ATS in tripped status

⑭  Parameter display area of normal power supply

⑮  Parameter display area of standby power supply

⑯  Unit of time: second

⑰  Unit of time: second

⑱  Indication of time-delayed transfer

⑲  Indication of time-delayed return

⑳  Indication of settings of controller

㉑  Setting button: press to enter setting menu

㉒  Shift button: check voltage in normal use, move backwards in setting status

㉓  Up button: increase number in setting status

㉔  Down button: decrease number in setting status

㉕  Manual button: press to switch to manual control in normal use, and transfer between normal power supply and standby power supply if in manual control status

㉖  Automatic button: press to switch to automatic control mode

㉗  Double open button: press to switch to double open status in manual control mode, save and exit in setting status

Diagram of Control Logic

External Wiring Diagram

Outline and Installation Dimension Diagram

Drilling dimensions of control panel

Selection and ordering data

Size A: 3SAQ2-100

Automatic transfer and restoration between normal and standby power supply (NBR)

Selection and ordering data

Size A: 3SAQ2-100

Automatic transfer without restoration between normal and standby power supply (NBS)

Selection and ordering data

Size A: 3SAQ2-100

Automatic transfer and restoration between normal and generating power supply (NGR)

Selection and ordering data

Size A: 3SAQ2-100

Automatic transfer without restoration between normal and generating power supply (NGS)

Selection and ordering data

Size B: 3SAQ2-225

Automatic transfer and restoration between normal and standby power supply (NBR)

Automatic transfer without restoration between normal and standby power supply (NBS)

Selection and ordering data

Size B: 3SAQ2-225

Automatic transfer and restoration between normal and generating power supply (NGR)

Automatic transfer without restoration between normal and generating power supply (NGS)

Selection and ordering data

Size C: 3SAQ2-400

Automatic transfer and restoration between normal and standby power supply (NBR)

Automatic transfer without restoration between normal and standby power supply (NBS)

Selection and ordering data

Size C: 3SAQ2-400

Automatic transfer and restoration between normal and generating power supply (NGR)

Automatic transfer without restoration between normal and generating power supply (NGS)

Selection and ordering data

Size D: 3SAQ2-630

Automatic transfer and restoration between normal and standby power supply (NBR)

Automatic transfer without restoration between normal and standby power supply (NBS)

Selection and ordering data

Size D: 3SAQ2-630

Automatic transfer without restoration between normal and generating power supply (NGS)

Automatic transfer without restoration between normal and generating power supply (NGS)

Selection and ordering data

Size E: 3SAQ2-800

Automatic transfer and restoration between normal and standby power supply (NBR)

Automatic transfer without restoration between normal and standby power supply (NBS)

Automatic transfer and restoration between normal and generating power supply (NGR)

Automatic transfer without restoration between normal and generating power supply (NGS)