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    Control Transformers

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    500VA Control Transformer, 240V to 110/36/24V

    SKU: ATO-T-BK500VA
    High efficiency single phase 500VA capacity control transformer is applicable for AC 50/60Hz, fully electric isolation between primary side and secondary sides, is designed to step down 240V input voltage to 110/36/24V three sets of output voltages.

    800VA Control Transformer, 220/380V to 120/48V

    SKU: ATO-T-BK800VA
    Control and lighting purposed mini dry type air automatic mode transformer with 800VA capacity, single phase, 2 groups of 220/380V primary voltages and 2 groups of 120/48V sencondary voltage. Step down control transformer is suitable for circuit of AC 50/60Hz.

    1000VA Control Transformer, 380V to 208/36V

    SKU: ATO-T-BK1000VA
    Best quality and low price 1kVA isolation control transformer enameled copper wire or aluminum wire, used in 50/60Hz, transforms single phase 380 volt to 2 groups output of 208/36 volt, input/output voltage is customizable as your need.

    2000VA Control Transformer, 240/480V to 220/36V

    SKU: ATO-T-BK2000VA
    Industrial control transformer on sales, features with 2000VA capacity, single phase, step 240/480V dual primary down to 220/36V dual secondary, H insulation level assure safe operation and long life. Input/output voltage can be customized as your requiements.

    3000VA Control Transformer, 440/460/480V to 120/24V

    SKU: ATO-T-BK3000VA
    This best industrial control transformer has 3000VA power rating, 1- phase, and step down the 440/460/480V three sets of primary voltages to 120/24V dual secondary voltage, it is usually used in machine tool working as local lighting, power of indicator light or the machine control electric appliance.

    4000VA Control Transformer, 240/480V to 208/110V

    SKU: ATO-T-BK4000VA
    Hot sale 4kVA single phase control transformer step down 240/480V dual input voltage to 208/110V dual output voltage, fully electric isolation between primary side and secondary sides, is suitable for circuit of AC 50/60Hz and rated voltage 500V and below.

    5000VA Control Transformer, 380V to 230/120V

    SKU: ATO-T-BK5000VA
    Dry type air cooling transformer is 1 phase 5000VA, H class enameled copper wire or aluminum wire, transforms 380 volt to 230/120 volt, input/output voltages can be customized as your need, just confirm us when place the order.

    6000VA Control Transformer, 220/440V to 120/48/12V

    SKU: ATO-T-BK6000VA
    Cheap price 6kVA single phase control transformer applicable to 50/60Hz, step down 220/440V primary voltage to 120/48/12V three groups of secondary voltages, with advantages of excellent performance, reliable operation, mainly work for control and lighting purpose.

    8000VA Control Transformer, 240V to 110/24V

    SKU: ATO-T-BK8000VA
    8kVA 1 phase industrial control transformer with affordable price, is suitable for circuit of AC 50/60Hz and step down 240V input voltage to 110/24V dual output voltage, fully electric isolation between primary side and secondary sides, H class enameled wired ensure long service life.

    10kVA Control Transformer, 230V to 110/36V

    Best and cheap industrial control low voltage transformer used in 50Hz/60Hz, has 10kVA power rating, designed to step down single phase 230 volt primary voltages to 110/36V dual secondary voltage, fully electric isolation between primary side and secondary sides.

    The control transformer is a step up or step down isolation transformer, and also a multi-tap transformer that has multiple taps on either the primary winding or the secondary winding. ATO offers single phase control transformer from 500VA to 10kVA power rating, AC primary supply from 110-480 volt, multiple secondary voltages applicable to AC 50Hz or 60Hz circuits, and can work continuously for a long time under rated load. Multi tap control transformers are usually used in machine tools and mechanical equipment as electrical control lighting and indicator lights power supply. Below is a list of all the single phase control transformer we provide. Find the right primary and secondary voltage you need, and other voltages that are not in the drop-down box can be customized.

    3 Points for Buying a Control Power Transformers


    When we purchase control transformers, we should pay attention to these safety requirements:Control transformers

    • Insulation resistance:  The insulation resistance of the control transformer in the cold state shall not be lower than 10 MΩ; the insulation resistance of the control transformer in the hot and wet state shall not be lower than 2 MΩ.
    • Dielectric strength:  The electrical insulation strength of the control power transformer should be able to withstand the withstand voltage test of AC 50 Hz, 2 000 V sinusoidal AC voltage, and no breakdown or flashover occurs for 1 minute.
    • Leakage current:  The leakage current of the control transformer shall not exceed 3mA.

    Step Up & Down Control Transformers Working Principle


    The control transformer works according to the principle of electromagnetic induction. A transformer has two sets of coils: A primary coil and a secondary coil. The secondary coil is just outside the primary coil. When alternating current is applied to the primary coil, the iron core of the transformer generates an alternating magnetic field, and then the secondary coil generates an induced electromotive force. The primary winding and the secondary winding are commonly covered on the iron core so that they can be coupled with each other through magnetic circuits and circuit coupling, so that energy is transmitted from the primary winding to the secondary winding.

    Relatively speaking, the main functions of more sophisticated equipment include: Preventing electric shock to workers, preventing interference, and obtaining appropriate voltage. Its working principle picture is as follows:

    Control transformer working principleFunctions of 500VA~10kVA Industrial Control transformers


    A control transformer is a small dry-type transformer. It has the following three functions.

    • Control transformers can facilitate access to the right voltage, but also change the voltage of AC power while changing the impedance.
    • When the design power is not exceeded, the control transformer can also change the current.
    • In different environments, the transformer is used for different purposes. The control transformer also has the function of anti-interference.

    Control transformers are mainly used in AC 50Hz (or 60Hz), voltage 1000V and below in the circuit, under the rated load can work continuously for a long time. ATO control transformers are usually used in machine tools, machinery and equipment the control electrical appliances lighting, and indicator power.

    Control Transformers

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