3 kVA Isolation Transformer, single phase, 208V to 120V

5 out of 5 based on 2 reviews | Write a review

$493.65

3 kVA cheap isolation transformer from ATO is a single phase unit with a primary voltage of 208 volt, it also provides a secondary voltage of 120 volt. Dry type natural air self cooling, NEMA 3R encapsulated enclosure for protection, make it ideal for a wide range of applications.

SKU: ATO-DG3KVA

Winding Material *
Primary Voltage (V) *
Secondary Voltage (V) *

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Delivery date: 6-12 days

Overview
Relative Video

3 kVA Isolation Transformer Features

Available in the circuit of AC 50Hz/60Hz.
To step down/up the single phase voltage 208V to 120V ( Various voltages of primary and secondary are available here for your selection).
High efficiency and low temperature rise.
Rated for hazardous locations as well as harsh industrial environments.

3 kVA Isolation Transformer Specifications

Model	ATO-DG3KVA
Phase	Single phase
Capacity	3 kVA
Primary Voltage	208V AC (optional: 110V/ 120V/ 220V/ 230V/ 240V)
Secondary Voltage	120V AC (optional: 110V/ 208V/ 220V/ 230V/ 240V)
Frequency	50Hz / 60Hz
Winding Material	Aluminium/Copper wire (Optional)
Work Efficiency	≥95%
Insulation Resistance	≥50 MΩ
Electrical Strength	2000V AC/1 min
Noise	≤35dB (1 meter)
Insulation Grade	Grade B (130℃), Grade F (155℃), Grade H (180℃)
Wiring Mode	△/Yn11
Cooling Method	Natural or air cooling
Overload Capacity	Allow more than 1.2 times rated load to work for up to 1 hour
Certification	CE, ISO
Temperature	-15℃~+45℃
Humidity	≤90%RH, without condensation
Altitude	<2000m, non corrosive gas and conductive dust
Size	210240245 mm (without shell); 310340345 mm (with shell)
Weight	About 32 kg (without shell); About 38 kg (with shell)

Note:
Transformer can only convert voltage and CANNOT convert frequency.
Transformer CANNOT convert single phase voltage to 3 phase voltage.
Support voltage customization, various specifications customization.

Single Phase Isolation Transformer Schematic Diagram
3 kVA Isolation Transformer Dimension
Tips: No-load Current of the 3 kVA Isolation Transformer
No-load current refers to the current running in the line terminal when a rated voltage with a rated frequency is applied to the terminal of a winding while other windings are open circuit. It's generally expressed by the percentage of the winding's rated current. So the reactive component of the no-load current is greater than the active component and a no-load current is essentially a reactive power, which is generally called as magnetic current. When the 3 kVA isolation transformer is running in no load, the output power is zero, however, a small part of active power will be absorbed from the power supply to compensate the power loss of the isolation transformer, and this part of power becomes heat and dissipates, namely the commonly said no-load loss.

Need more detail of ATO isolation transformer? Here is a good explanation about it in this video. To test the accuracy of the transformer voltage, we take a 3000 VA single phase 220V iuput to 110V output isolation transformer as an example.

Existing reviews of 3 kVA Isolation Transformer, single phase, 208V to 120V

Transform 110V to 220V or 220V to 110V

The isolation transformer arrived on time and exceeded my expectations for quality. It works perfect in the US with my European devices, transform 110V to 220V or 220V to 110V.

From: Charlie Chisholm | Date: 18/07/2018

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Used this 3 kVA step up/down isolation transformer converting 220V (Europe) to 110V (USA)

I have used this 3 kVA step up/down isolation transformer for about 6 months straight now, converting 220V (Europe) to 110V (USA) for the devices like a Dell Color Laserprinter, a Vizio 80" TV, and a Jura F9 coffee maker. So far it has held up very well. I highly recommend this product to anyone.

From: James Kelley | Date: 17/10/2018

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