Isolation Transformers

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500 VA Isolation Transformer, Single phase, 220V to 110V

$547.25

SKU: ATO-T-DG500VA

500 VA single phase isolation transformer for sales, step down low voltage 220 volt to 110 volt, other voltages are customizable. Optional for aluminum or copper wire winding, IP20 enclosure, four movable wheels for easy movement, working efficiency up to 95%.

800 VA Isolation Transformer, Single Phase, 110V to 240V

$633.84

SKU: ATO-T-DG800VA

800 VA single phase isolation transformer for sale, designed to step up 110 volt to 240 volt, step down 240 volt to 110 volt version is available, other voltage can be customizable, provides increased reliability and 95% high working efficiency.

1 kVA Isolation Transformer, Single Phase, 240V to 120V

$784.36

SKU: ATO-T-DG1KVA

Customizable 1 kVA isolation transformer is a single phase transformer with lower cost, step up or step down the AC voltage between 240 volt and 120 volt, optional enameled copper wire or aluminum wire. Encapsulation and IP20 protection grade of the enclosure protect the transformer from dust, moisture and provide extra shock and vibration resistance.

2 kVA Isolation Transformer, Single Phase, 240V to 110V

$854.47

SKU: ATO-T-DG2KVA

Dry type single phase isolation transformer with 2 kVA power capacity, 50/60 Hz rated, wide range of primary and secondary voltage for selection. 240V to 110V, 208V to 120V, 110V to 230V and more isolation transformer for sale, optional enameled copper wire or aluminum wire.

3 kVA Isolation Transformer, Single Phase, 208V to 240V

$1,036.45

SKU: ATO-T-DG3KVA

Dry type single phase 3 kVA isolation transformer for sale, with primary voltage 208V and secondary voltage 240V, other capacity and voltage can be customizable. Safe and reliable 1-phase isolation transformer to step up or step down voltage, insulating the electrical between the primary and secondary sides and isolates the circuit.

4 kVA Isolation Transformer, Single Phase, 220V to 110V

$1,135.24

SKU: ATO-T-DG4KVA

Single phase dry isolation transformer features 4 kVA power capacity, 50Hz/ 60Hz frequency, step down 220V primary voltage to 110V secondary voltage, 110V to 220V step up version or other voltages can be customized. Optional enameled copper wire or aluminum wire, IP20 enclosure type or open type.

5 kVA Isolation Transformer, Single Phase, 230V to 120V

$1,436.54

SKU: ATO-T-DG5KVA

Lower cost 5 kVA isolation transformer, single phase, to use in alternating current (AC) 50Hz or 60Hz, step down the voltage 230V to 120V or step up 120V to 230V. Copper wire or aluminum wire for optional, IP20 protection grade enclosure, dry type natural air self cooling mode.

8 kVA Isolation Transformer, Single Phase 120V

$2,069.05

SKU: ATO-T-DG8KVA

8 kVA dry type isolation transformer for sale, single phase, 120 volt AC voltage, 1:1 ratio between the primary and secondary windings, other voltage are available for choice. Shielded isolation transformer offers 100% isolation from the input AC line, to protect against electric shock between the ground and energized conductors.

10 kVA Isolation Transformer, Single phase, 120V to 240V

$2,226.98

SKU: ATO-T-DG10KVA

Single phase 120V to 240V isolation transformer is design to use in AC circuit 50Hz or 60 Hz, 10 kVA capacity for safety. Open type and protected type versions are available, the effective performance and high quality features make it ideal for use in the electrical and the engineering industries.

15 kVA Isolation Transformer, Single phase, 208V to 110V

$2,786.44

SKU: ATO-T-DG15KVA

Affordable single phase 15 kVA isolation transformer adopts high quality material and advanced technology, it has advantages of damp- proof and convenient maintenance, mainly used in power supply occasions of AC 50~60Hz, step down or step up voltage between 110V and 208V.

20 kVA Isolation Transformer, Single phase, 240V to 208V

$3,388.89

SKU: ATO-T-DG20KVA

The 20 kVA capacity transformer from ATO is safety and isolation single phase transformer, it can step down 240 volt input voltage to output 208 volt, can step up 208 volt to 240 volt as well. This good price isolation transformer provides enhanced electrical isolation between the line supply and the application.

30 kVA Isolation Transformer, Single Phase, 110V to 220V

$4,380.77

SKU: ATO-T-DG30KVA

30 kVA isolation transformer, single-phase distribution power transformer foe sale, step up 110V primary to 220V secondary voltage or step down 220V input to 110V output, LCD display voltage, aluminum wire or copper wire, low temperature rise.

4 kVA Isolation Transformer, 3 phase, 400V to 208V

$1,424.21

SKU: ATO-T-SG4KVA

Reasonable price 4kVA isolation transformer, convert 3 phase voltage 400V input to 208V output, provides increased reliability and higher efficiency, make this step up/down transformer ideal for a wide range of applications.

5 kVA Isolation Transformer, 3 phase, 480V to 400V

$1,776.92

SKU: ATO-T-SG5KVA

3 phase 5 kVA isolation transformer is designed to step down/ up the voltage 480V to 400V, and widely used in various power supply sites with frequency 50Hz or 60Hz.

6 kVA Isolation Transformer, 3 phase, 480 Volt to 380 Volt

$1,889.55

SKU: ATO-T-SG6KVA

Three phase 6 kVA isolation transformer is dry type air self cooling one, which is available in the circuit of AC 50Hz/ 60Hz and convert primary voltage 480V to secondary voltage 380V, long life span and high efficiency.

7 kVA Isolation Transformer, 3 phase, 380V to 208V

$2,021.86

SKU: ATO-T-SG7KVA

7 kVA isolation transformer is a step up or step down transformer in low cost, 3 phase, convert primary voltage 380V to secondary voltage 208V, better dielectric strength and insulation resistance.

8 kVA Isolation Transformer, 480V 3 phase to 240V 3 phase

$2,333.08

SKU: ATO-T-SG8KVA

480 Volt 3 phase to 240 Volt 3 phase isolation transformer, 8 kVA power rating, primary and secondary windings are separated by aluminium/copper shield, 230 Volt, 400 Volt or othe voltages can be chosen, long life span and high efficiency.

10 kVA Isolation Transformer, 3 phase, 400 Volt to 240 Volt

$2,635.71

SKU: ATO-T-SG10KVA

Safety 10 kVA isolation transformer is suitable for circuit of 50 or 60Hz, 3 phase, primary voltage 400V to secondary voltage 240V. The transformers is high quality with lower cost, manufactured direct sale and fully compliant with reduced low voltage regulations.

15 kVA Isolation Transformer, step up/step down 415V with 208V

$3,203.97

SKU: ATO-T-SG15KVA

3 phase high quality isolation transformer with 15 kVA power rating, better dielectric strength and insulation resistance. Step up or step down transformer to change the voltage between 415V and 208V, suitable for both indoor and outdoor applications.

20 kVA Isolation Transformer, 3 phase, 380V to 190V

$3,853.97

SKU: ATO-T-SG20KVA

High performance 20kVA isolation transformer is designed to step down/up the 3 phase voltage 380V to 190V. Primary and secondary windings are separated by aluminium/copper shield, and widely used in various power supply sites with frequency 50Hz/60Hz.

ATO customized single phase, 3 phase, split phase isolation transformers for sales. They come with IP24 enclosure that are of superior quality and safety for indoor use. The power rating range from 800 VA to 300 kVA, available in the circuit of AC 50Hz/60Hz and voltage less than 1000V. They can work as step-up transformers or step-down transformers, voltage convert single phase to single phase, three phase to three phase, provide increased reliability, higher efficiency. Input/output voltage, power rating and whether with shell of all isolation transformers, can be customized according to your requirements. Buy a low cost isolation ransformer from ATO now.

Isolation transformer is the device which transform alternating current (AC) electrical power from primary to secondary side, makes it ideal for use in the electrical and the engineering industries. The AC power supply voltage we usually use is connected to the ground with one wire, and there is a potential difference of 220V between the other wire and the ground. If human contact it, it can cause electric shock. The secondary winding of the isolation transformer is not connected to the ground, and there is no potential difference between any two lines of it and the ground. People will not get electric shock when they touch any line, so it is safer.

The output end of the step up & step down isolation transformer is completely "open circuit" isolated from the input end, which effectively plays a good filtering role on the input end of the transformer (power supply voltage supplied by the grid). Thus, a pure power supply voltage is provided to the electrical equipment. Isolation transformers are safe power supplies, generally used for machine repair and maintenance, and play the role of protection, lightning protection, and filtering.

Step-up & Step-down Isolation Transformers Advantages

High safety, human touching not causing the risk of electric shock

The reliability of step-up & step-down isolation transformers relies on their safety performance, which is relatively high, even if the human touching the power supply will not cause the risk of electric shock. Thus its safety performance is an outstanding feature worthy of praise.

Isolation transformer details

Preventing electronic devices from polluting the power grid

The durable isolation transformer is a stable product. The isolation transformer is very commendable in reducing environmental pollution, especially reducing the pollution of electronic components to the power grid. In the era of air quality, such non-polluting products are very popular and important.

Anti-interference

The well-known isolation transformer has a good anti-interference function. The step-up & step-down isolation transformer is very prominent in preventing interference. Now the external interference is quite a lot. If the isolation transformer does not have a good performance in preventing interference, then it will be bound to be eliminated.

Single Phase vs. 3-Phase Isolation Transformer

Because of its simple structure and small size, the single-phase isolation transformer is suitable for low-voltage distribution networks with a small load density. Different from the single-phase isolation transformer in structure, the three-phase isolation transformer is more complex, so it is now widely used in printing and packaging, petrochemical industry, schools, shopping malls, elevators, post and telecommunications communications and a variety of industrial automation equipment and other occasions requiring normal voltage guarantee. Moreover, the three-phase isolation transformer with high quality can relieve the disturbance of the common mode and other central lines of the power grid to effectively avoid the interference and noise caused by the high-frequency pulse coupling inside the transformer, and well adapt to various complex application environments.

1-phase vs 3-phase isolation transformer

240V to 120V Single Phase Isolation Transformer Overview

Isolation transformers are safe for power supplies and are generally used for machine repair and maintenance to protect, prevent lightning, and filter. ATO 240V/230V to 120V/110V single-phase isolation transformers are used in 115V motors. Click the video below for 1 phase isolation transformer overview and testing.