30-0-30V Toroidal Transformer, 200VA/300VA

SKU: PH-TT-200

$138.99

● 200VA rating fits compact equipment requiring efficient and low-noise power conversion. ● Standard configuration: 120V AC / 2x30V AC, 50Hz/60Hz. ● Copper winding and toroidal core help maintain stable output. ● Low electromagnetic radiation makes it suitable for sensitive electronics.

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Secondary Voltage (AC) *

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Overview
Specs
Application
FAQ
Reviews

Overview

The Toroidal Transformer is engineered for high-efficiency AC voltage conversion in compact and low-noise power systems. Built with a toroidal core and insulated copper wire, it provides low electromagnetic radiation, low hum, and reduced temperature rise during operation. Standard configuration includes 120V AC input and 2x24V AC output, with multiple customizable voltage options available. The transformer supports 50Hz/60Hz operation, delivers up to 96% efficiency, and maintains no-load loss below 1.08W.

Feature

High Efficiency: The winding is tightly matched to the core for efficient power transfer and stable performance.
Long Service Life: Made with durable materials and reliable manufacturing for a service life of up to 30 years.
Low Noise: Seamless core construction and even winding distribution help keep operating noise to a minimum.
Low Radiation: The toroidal design helps reduce electromagnetic radiation and unwanted interference.
Low Temperature Rise: Even at 120% load, the temperature rise remains below 70℃.

Details

Reliable PET Insulation: PET polyester film helps provide stable insulation and safe transformer operation.
Protected Internal Design: The protective structure supports dependable performance in daily use.
Insulated Copper Wire: High-quality copper magnet wire improves winding stability and power efficiency.
Low-Noise Core: The high magnetic flux core helps reduce hum, lower interference, and maintain efficient operation.

Toroidal Transformer Accessories

Toroidal transformer accessories

Toroidal Transformer Internal Structure

Toroidal transformer internal structure

Wiring Instructions

Without Baseplate Installation

A Pedestal Installation

Specs

Phase	Single phase
Power	200VA (200W), 300VA(300W)
Primary Voltage	230V AC (Optional: 110V, 120V, 220V, 230V, 240V)
Secondary Voltage	2x24V (24-0-24) (Optional: 12V, 24V, 48V, 110V, 220V, 2x6V, 2x12V, 2x15V, 2x24V, 2x30V, 2x35V, 2x40V, 2x50V, can be customized)
Secondary Current	5A each winding(200VA), 6.25A(300VA)
No. of Inputs	1 input
No. of Outputs	2 outputs, 4 wires (1 output is available)
No. of Outputs	Note: For the transformer with 2 outputs 4-wire, each output provides the same voltage and current level, the sum of 2 output power capacities is equal to the total capacity.
Frequency	50Hz/60Hz
Winding Material	Copper Wire
Coil Structure	Toroidal
Efficiency	90%-96%
No-load Loss	<1.92W(200VA), <4W(300VA)
Input Wire	UL1015-18#Red
Output Wire	UL1015-14#Yellow(200VA), UL1015-16#Black(300VA)
Voltage Strength	DC2500V
Insulation Impedance	≥500MΩ
Cooling Method	Natural air cooling
Temperature	+40℃
Certification	CE, RoHS, ISO
Warranty	12 months
External Diameter	120mm
Height	54mm(200VA), 56mm(300VA)
Pedestal	120*120mm
Mounting Hole Distance	110*110mm
Weight	3kg
Package Included	1Toroidal transformer + 1Accesorries sets (Nut, Shim, Metal disk, Rubber gasket, Pedestal, Screw)

Application

Audio Amplifiers

Power Supply Units

Control Circuits

LED Lighting Systems

FAQ

Q1: Why choose a toroidal transformer instead of a traditional EI transformer?

A toroidal transformer is often preferred because of its compact design, lower magnetic leakage, quieter performance, and better efficiency. For equipment that is sensitive to electrical noise, such as audio systems, test instruments, and precision control devices, a 200VA toroidal transformer can help improve overall power quality and reduce unwanted hum.

Q2: Is a 200VA toroidal transformer suitable for audio applications?

Yes. A 200VA toroidal transformer for audio equipment is a popular choice because it can provide stable power, low vibration, and low electromagnetic radiation. It is often used in power amplifiers, preamplifiers, DAC power supplies, and high-fidelity audio systems where quiet performance is important.

Q3: What does 2x12V or 2x24V mean on a 200VA toroidal transformer?

When a 200VA toroidal transformer is marked 2x12V or 2x24V, it means the transformer has two separate secondary windings. These windings can often be connected in series, parallel, or center-tapped configurations, depending on the application. This provides more flexibility for power supply design and wiring.

1 review(s)

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From: James | Date: 6/9/2026 1:10 AM

Nice and Quiet – Perfect for My DIY Audio Build

I picked this up for a home stereo amplifier project, and honestly, I couldn't be happier. The first thing I noticed is how quiet it is – no annoying hum bleeding into the speakers, which was a problem with my old square transformer. It stays cool even after hours of listening, and the whole amp sounds cleaner with less electrical noise. The dual outputs are handy too, gave me some flexibility with wiring. Build quality feels solid, and it's a lot more compact than I expected. If you're building any kind of sensitive gear, especially audio stuff, go with this one. Totally worth it.

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