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  • Scope of Application

    TXQ6 Automatic Transfer Switch, TSE-type PC-class; for power supply system of AC 50Hz, AC rated voltage of 380V, rated current of 3150A, three-phase four-wire.
    To achieve automatic and manual switching between common and standby power supply, in the process of switching power supply, to cut off the power supply to the load.
    Used for the occasion with requirements of two-way power supply and high power quality. There are 16A~200amp automatic transfer switch and 250A~3150A switches produced.
    TXQ6 Automatic Transfer Switch complies with GB 14048.3 and GB 14048.11, IEC 60947-3 and IEC 60947-6-1 standards.

    Model and its meaning

    Normal operating conditions and installation conditions

    3.1 The ambient air temperature is not higher than +40 ℃, not lower than -5 ℃.
    3.2 The altitude of the installation site shall not exceed 2000m.
    3.3 Humidity: the maximum temperature of +40 ℃, the relative humidity of air does not exceed 50%, at a lower temperature can allow a higher.
    Relative humidity, for example 90% at 20 & lt; 0 & gt; C. Special precautions should be taken for condensation that may occur occasionally as a result of temperature changes.
    3.4 The pollution level of the surrounding environment is Grade 3.
    3.5 Switch should be installed in the absence of significant shaking, shock and no rain and snow invasion of the place, while the installation site should be no explosion hazard medium, and the media is not enough to corrode the metal and damage the insulation of gases and dust.

    Main parameters and technical performance

    Conventional heating current (A) 16 20 25 32 40 63 80 100 125 125 160 200 250 135 400 630 800 1000 1250 1600 2000 2500 3150
    Rated insulation voltage (V) 660 800
    Rated impulse withstand voltage (V) 8 12
    Rated voltage Rated operating voltage: 380V; Control power supply voltage: 220V
    Rated operating current 16 20 25 32 40 63 80 100 125 160 200 250 315 400 630 800 1000 1250 1600 2000 2500 3150
    Rated making and breaking capacity 6Ie
    Rated short-time withstand current (kA) 5 10 12.6 26 32 55
    Conversion time Ⅰ-Ⅱ or Ⅱ-Ⅰ ≤3s ≤4s
    Rated control power(W) Start 300 325 355 400 400 600
    Normal 55 62 74 90 98 120
    Operating force(N) 30~50 40~60 65~100 75~120 200~300 250~400

    Control characteristics and product structure

    5.1 Control characteristic:

    5.1 Control characteristic:
    The switch has three-pole, four-pole (three-pole + neutral pole can be on or off) product.
    Four types of control (common type, Ⅰ, Ⅱ, Ⅲ), commonly used is "common type".
    Operation mode of the automatic conversion operating mechanism is selected by the key switch, and the position can be maintained by the padlock.
    Control characteristic of common-type switch:
    Switch is used for the automatic change and automatic recovery of main power supply - standby power supply system.
    Control characteristic of Ⅰ-type switch:
    Switch is used for the automatic change and non-automatic recovery, mutual standby of electric supply - electric supply main-standby power supply system. The main power to the standby power (Continuous adjustable delay 1~999s),standby power to the main power supply (Continuous adjustable delay 1~999s). There is phase loss detection and over-under voltage protection function.
    Control characteristic of Ⅱ-type switch:
    Switch is used for the automatic change and automatic recovery of electric supply - electric supply main-standby power supply system. The main power to the standby power (Continuous adjustable delay 1~999s),standby power to the main power supply (Continuous adjustable delay 1~999s). There is phase loss detection and over-under voltage protection function.
    Control characteristic of Ⅲ-type switch:
    Switch is used for the automatic change and automatic recovery of electric supply - oil machine (have automatic starting and receiving signal function, ordinary oil generators are not available) power supply system.
    When the common power supply is applied to the oil machine power supply system, the switch will transmit signal of starting oil machine at first, the oil machine starts after chip warming up (Continuous adjustable delay 0~999s)
    Oil machine back to electric supply, the oil machine is closed after cooling machines (Continuous adjustable delay 0 ~ 999s). There is phase loss detection and over-under voltage protection function.
    Above three kinds switches of Ⅰ, Ⅱ, Ⅲ have:
      1) Automatic, remote control, manual control
      2) Delay 0.5s to detect signal, to prevent malfunction.
      3) The automatic status has the remote control "0" position.
      4) Key switch selects the operating mode.

    5.2 Product structure


    a. Electric key lock: internal control line power of control switch, the electrical lock is in the "automatic position", the switch achieves automatic, remote control operation, electrical lock is in the "manual" position, the switch can only be manually operated;
    b. Operating handle: when using the operating handle to operate the switch, you must close the electrical lock;
    c. Mechanical padlock: when maintenance, firstly, use the operating handle to make switch in the 0 position, pull up the padlock structure and padlock, then can be checked: (pulling the mechanical padlock will cut off the internal control power of switch, the switch can not be electric, and can not be manual);
    d. Position indication: Indicates the position of the switch operating status (Ⅰ; 0; Ⅱ);
    e. Control voltage: switch control voltage level 220VAC;
    f. Switch body: the front part is Ⅰ-way, connect to "common power"; the latter part is Ⅱ-way, connect to "standby power."

    5.3 Control circuit terminals:

    Common type control circuit terminal 16-100A / 4 poles (Eg: TXQ6-100 / 4SZ)

    Common type control circuit terminal 16-100A/3-pole, 125-3150/3-pole and 4-pole(Eg: TXQ6-200amp automatic transfer switch /3SZ or 4SZ)

    Common type+fire (DC24V) control circuit terminal 16-630A/3-pole and 4-pole (Eg: TXQ6-200 amp automatic transfer switch /3SZ or 4SZ fire-type)

    Ⅰ, Ⅱ, Ⅲ control circuit terminal 160-3150/4-pole (Eg: TXQ6-200amp automatic transfer switch /4SZⅠ, Ⅱ or Ⅲ)


    Common type: control circuit terminal
    Terminal 1
    102、103-Ⅰ-way power control input terminal
    104、105-Ⅱ-way power control input terminal
    101、106-Note:
    These two ports are not connected to any other lines.
    Terminal 2
    202-203-Ⅰ-way remote control closed switch
    202、204-0-way remote control closed switch
    202、205-Ⅱ-way remote control closed switch
    201、206-Disconnect for remote control, short circuit for automatic control.
    Terminal 3
    302、303-Ⅰ-way signal indication
    302、304-0-way signal indication
    302、305-Ⅱ-way signal indication
    Terminal 4
    402、403-Ⅰ-way reserved working status indicator switch
    404、405-Ⅱ-way reserved working status indicator switch
    401、406-These two ports are redundant.
    Terminal 5
    502、503-Electrical key indicating automatic, manual operation mode
    504、505-Padlock indications, whether has been locked up in any state position(Ⅰ, 0, Ⅱ)
    501、506-These two ports are redundant.

    Common type+fire 24V: control circuit terminal
    Terminal 1
    102、103-Ⅰ-way power control input terminal
    104、105- Ⅱ-way power control input terminal
    These two ports are not connected to any other lines.
    Terminal 2
    202-203-Ⅰ-way remote control closed switch
    202、204-0-way remote control closed switch
    202、205-Ⅱ-way remote control closed switch
    201、206-Disconnect for remote control, short circuit for automatic control.
    Terminal 3
    301、302-Ⅰ-way signal indication
    301、303- 0-way signal indication
    301、304- Ⅱ-way signal indication
    305、306-Fire fighting(24V), force "zero" function.

    Ⅰ, Ⅱ, Ⅲ (Protection type):control circuit terminal
    Terminal 1
    101、102-Signal output of starting oil machine (Note: only for Ⅲ-type)
    103、104-Fire fighting(24V) input, force "zero", two-way switches are both off
    105、106-These two ports are redundant.(Can't meet the communication requirements)
    Terminal 2
    202-203-Ⅰ-way remote control closed switch
    202、204-0-way remote control closed switch
    202、205-Ⅱ-way remote control closed switch
    201、206-Disconnect for remote control, short circuit for automatic control.
    Terminal 3
    301、302-Ⅰ-way signal indication
    301、303- 0-way signal indication
    301、304- Ⅱ-way signal indication
    305-"N1" switch Ⅰ-way zero line control(only for level 3)
    306-"N2" switch Ⅱ-way zero line control(only for level 3)
    Terminal 4
    402、403-Ⅰ-way reserved working status indicator switch
    404、405-Ⅱ-way reserved working status indicator switch
    401、406-These two ports are redundant.
    Terminal 5
    502、503-Electrical key indicating automatic, manual operation mode
    504、505-Padlock indications, whether has been locked up in any state position(Ⅰ, 0, Ⅱ)
    501、506-These two ports are redundant.

    Wiring diagram

    6.1 Wiring diagram of 16A~100A 4-pole common type main switch

    6.2 Wiring diagram of 125A~3150A common type main switch

    6.3 Wiring method of No.2 terminal according to different ways is as follows:

    a. Automatic wiring mode


    b. Wiring mode of remote control and position "0" (double power supply are cut off)


    c. Wiring mode of automatic + remote control (Note: SB1, SB2 are the external button switch)

    6.4 Wiring Instructions


    Main structure and the correct installation method of switch:
    (1) The front part is Ⅰ-way, connect to "common power"; the latter part is Ⅱ-way, connect to "standby power".
    (2) Operation mode of the automatic conversion operating mechanism is selected by the key switch, and the position can be maintained by the padlock.
    (3) The line bank of switch body from left to right is A, B, C, N phase.
    (4) The upper end of the main switch is inlet line of Ⅰ-way, Ⅱ-way, the lower end is outlet line of Ⅰ-way, Ⅱ-way with connection of copper busbar or wire connection for the outlet.

    Outline and installation dimensions

    7.1 Outline and installation dimensions of TXQ6 series switch body


    Specifications Installation dimensions (mm)
    Current A A1 B C E J K L N P R V ΦX Y Y1
    16A/3、4 305 245 106 170 133 234 84 7 75 30 14 10.5 6 36 86
    32A/3、4 305 245 106 170 133 234 84 7 75 30 14 10.5 6 36 86
    40A/3、4 305 245 106 170 133 234 84 7 75 30 14 10.5 6 36 86
    63A/3、4 305 245 106 170 133 234 84 7 75 30 14 10.5 6 36 86
    80A/3、4 305 245 106 170 133 234 84 7 75 30 14 10.5 6 36 86
    100A/3、4 305 245 106 170 133 234 84 7 75 30 14 10.5 6 36 86
    125A/3 380 282 135 240 208 275 78/108 7 87 36 20 20 9 58 135
    160A/3 380 282 135 240 208 275 78/108 7 87 36 20 20 9 58 135
    125A/4 410 320 135 240 208 312 78/108 7 87 36 20 20 9 58 135
    160A/4 410 320 135 240 208 312 78/108 7 87 36 20 20 9 58 135
    200A/3 420 330 170 240 208 312 78/108 7 87 50 25 27 11 60 140
    250A/3 420 330 170 240 208 312 78/108 7 87 50 25 27 11 60 140
    200A/4 470 380 170 240 208 358 78/108 7 87 50 25 27 11 60 140
    250A/4 470 380 170 240 208 358 78/108 7 87 50 25 27 11 60 140
    315A/3 455 382 240 315 270 365 180 11 95 65 32 37.5 11 84 195
    400A/3 455 382 240 315 270 365 180 11 95 65 40 37.5 13 84 195
    630A/3 455 382 260 315 270 165 180 11 95 65 40 37.5 13 84 195
    315A/4 515 450 240 315 270 430 180 11 95 65 32 37.5 11 84 195
    400A/4 515 450 240 315 270 430 180 11 95 65 32 37.5 11 84 195
    630A/4 515 450 260 315 270 430 180 11 95 65 40 37.5 13 84 195
    800A/3 900 520 310 368 320 500 220 11 85 120 60 195 13 108 252
    1000A/3 900 520 310 368 320 500 220 11 85 120 60 195 13 108 252
    1250A/3 900 520 360 368 320 500 220 11 85 120 70 18 13 108 252
    1600A/3 900 520 360 368 320 500 220 11 85 120 80 198 13 108 252
    800A/4 1010 635 310 368 320 610 220 11 85 120 60 198 13 108 252
    1000A/4 1010 635 310 368 320 610 220 11 85 120 60 198 13 108 252
    1250A/4 1010 635 360 368 320 610 220 11 85 120 70 198 13 108 252
    1600A/4 1010 635 360 368 320 310 220 11 85 120 80 198 13 108 252
    2000A/3 900 520 455 562 495 500 220 11 85 137 80 33 13 226 457
    2000A/4 1010 635 455 562 495 610 220 11 85 137 80 33 13 226 457
    2500A/3 900 50 455 562 495 500 200 11 85 137 80 33 13 226 457
    2500A/4 1010 635 455 562 495 610 220 11 85 137 80 33 13 226 457
    3150A/3 900 520 505 56 495 610 220 11 85 142 120 13 13 230 462
    3150A/4 1010 635 505 562 495 610 220 11 85 142 120 13 13 230 462

    7.2 Outline and installation dimensions of TXQ6H series with box type


    Model and specification A B C D
    TXQ6-16~100/3SZH 400 350 180 310
    TXQ6-125~250/3SZH 470 400 235 370
    TXQ6-315~630/3SZH 600 500 305 500
    TXQ6-1000~1600/3SZH 700 830 445 670
    TXQ6-16~100/4SZH 400 350 180 310
    TXQ6-125~250/4SZH 470 400 235 370
    TXQ6-315~630/4SZH 600 500 305 500
    TXQ6-1000~1600/4SZH 700 830 445 670

    7.3 Outline and installation dimensions of TXQ6YFH series with steel casing LCD


    Model and specification A B C D E
    TXQ6-16~100/3SZYFH 380 350 240 322 292
    TXQ6-125~160/3SZYFH 412 400 285 312 331
    TXQ6-200~250/3SZYFH 470 400 285 370 331
    TXQ6-315~630/3SZYFH 600 500 345 500 390
    TXQ6-16~100/4SZYFH 380 350 240 322 292
    TXQ6-125~160/4SZYFH 412 400 285 312 331
    TXQ6-200~250/4SZYFH 470 400 285 370 331
    TXQ6-315~630/4SZYFH 600 500 345 500 390
    TXQ6-100~1600/4SZYFH 830 700 430 670 540

    Use and maintenance

    8.1 The automatic transfer switch should be checked whether nameplates are consistent with requirements before installation, to ensure the switch in the open position.
    8.2 The electric key is the control circuit power supply inside the control switch. When the electrical lock starts, the switch can realize automation and remote operation. When the electric lock is closed, the switch can only be operated manually.
    8.3 When operating the switch with the operating handle, the electrical lock must be closed.
    8.4 When maintenance, firstly, use the operating handle to make switch in the 0 position, pull up the padlock structure and padlock, then can be checked: (pulling the mechanical padlock will cut off the internal control power of switch, the switch can not be electric, and can not be manual).

    Switch debugging instructions

    9.1 Connect the common power supply (Ⅰ) and the standby power supply (Ⅱ) to the corresponding copper wiring board.
    Fully automatic commissioning:
    Common power supply with electricity, standby power supply with electricity, the switch is on in Ⅰ-way (Note: I-type switch without this function, being which way power, it should be connected to that way at first)
    Common power loss, standby power supply with electricity, the switch is on in Ⅱ-way;
    Common power with electricityl, the switch is on in Ⅰ-way (except for Ⅰ-type switch).
    (See the switch panel indicator arrows)
    Pull the function selector switch to the automatic position: the switch should operate in fully automatic mode;
    9.2 When the automatic transfer switch is on in the Ⅰ-way or Ⅱ-way, the signal light on the panel should be indicated accordingly;
    9.3 After commissioning, turn off the power firstly, and switch to the "0" position with the handle switch.

    Ordering Information

    Ordering unit must indicate the type and characteristics of switch, voltage levels, current levels, the number of poles and quantity and others, special orders, please contact our technical department.
    For example: TXQ6-200amp automatic transfer switch / 4SZ 380V 10 units


    Keywords: 200 amp automatic transfer switch

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