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

    $654.17
    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.
    SKU: ATO-T-BK4000VA
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    Free Shipping Worldwide
    Delivery date: 6-12 days

    Reasonable price industrial control transformer has 4000VA power rating, 1-phase, and converting the 240/480V primary voltages to 208/110V secondary voltage, it is usually used in machine tool working as local lighting, power of indicator light or the machine control electric appliance.

    Specifications

    Product Name Single phase control transformer 
    Product Model ATOBK-4000VA
    Winding Material Enameled copper wire or enameled aluminum wire
    Capacity 4000 VA
    Primary Voltage (VAC) 110, 120, 208, 220, 230, 240, 380, 400, 480, 110/220, 120/240, 240/480, 220/380/480V, 440/460/480V...(Customized)
    Secondary Voltage (VAC) 6, 12, 24, 36, 48, 110/48, 120/24, 208/36, 220/48, 230/36, 240/120, 120/24/12, 110/36/24, 127/36/6, 208/48/36/24...(Customized)
    Frequency 50 / 60Hz
    Insulation Level F / H
    Withstand Voltage Test Primary to secondary 2.5KV/min
    Primary to safety ground 2.5KV/min
    Secondary to safety ground 1.5KV/min
    Insulation Resistance Primary to secondary 2500V>100 megohm
    Primary to safety ground 2500V>100 megohm
    Secondary to safety ground 1500V>100 megohm
    Induction Withstand Voltage Test 125Hz/ 800V/min
    Ground Resistance 25<A80 milliohm
    Cooling Method Natural or air cooling
    Transformation Ratio <3%
    Air Carrying Current <6%
    Impedance Voltage about 6%
    Total Losses 0.1
    Efficiency 80%~99%
    Operating Temperature -25℃~40℃ (40℃, 93% RH, 56 days)
    Storage Temperature -25℃~100℃ (40℃, 93% RH, 56 days)
    Certificate CE, ISO
    Warranty 12 months
    Size Overall size: 210*180*210mm, Hold distance for installation: 150*170mm, Installation hold: 18*8mm
    Weight 40kg

    Schematic diagram illustration

    Control transformer schematic diagram illustration

     Control transformer dimension

    Control transformer dimension

    Overall size (mm) Hole distance for installation (mm) Installation hole
    (mm) K x J
    B E D A C
    210 180 210 150 170 18 x 8

    Tips: 5 reasons for the smoke burning out of the control transformer

    1. The transformer is overloaded or the design temperature rise is too large, resulting in overheating of the product, which has exceeded the temperature resistance level of the body insulation material.
    2. The turn to turn insulation of the primary side or the secondary side is damaged or aged, resulting in turn to turn short circuit, local overheating and smoke.
    3. The welding part of the outgoing line is faulty welded and the contact resistance is large, resulting in the local current density is too large, and even the conductor can be fused.
    4. If there is shielding copper in the transformer coil, it can also be caused by shielding copper short circuit.
    5. If there is a through bolt in the core, the bolt shall be insulated from the core at least on one side. Otherwise, if magnetic short circuit is caused, the bolt will be burnt red.
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