Best Power Transformers of 2025

The Mophorn 2KVA Variable AC Voltage Regulator features high-quality pure copper coil for stable and durable power supply, high precision axle design for accurate voltage range of 0-130V, over-voltage protection, and fast heat dissipation with small holes design. It can be widely used in various industries, scientific experiments, public facilities, and household appliances for tasks such as home coffee roasting, motor speed control, and label printing machine, and more.

This power transformer has an input of 120VAC and 60Hz, with a maximum power of 300VA. It also has an internal electrostatic shield and comes with a 5.5 feet cord with 2-prong plug for input. The compact size of 3.2"W x 4.6"D x 4.2"H makes it easy to store and use.

The VEVOR Voltage Transformer offers exceptional flexibility in controlling voltage, allowing you to easily adjust settings for brightness, speed, and temperature. With a power capacity of 2000VA and a wide output range of 0-130V, this device ensures optimal performance for your appliances. Safety is a top priority, featuring fuses and a thermal control switch to protect your equipment from overload. Its durable metal casing and effective heat dissipation design guarantee longevity and reliability, making it suitable for both home and industrial use.

The Siemens MT0150A Power Transformer is a versatile industrial transformer that efficiently reduces primary voltages of 240 x 480, 230 x 460, or 220 x 440 V to a secondary voltage of 120/115/110 V. With a rating of up to 150 VA, this transformer is perfect for various applications. Its silicon steel-laminated core and copper magnet wire enhance its efficiency, while the epoxy encapsulation ensures resistance to moisture, dust, and industrial contaminants. The built-in fuse clips on the secondary side save panel space and wiring time, eliminating the need for manual installation in the field. The Siemens Power Transformer offers reliable performance and convenience for your power transformation needs.

The ChooKaChoo Control Transformer is a high-quality transformer designed for use in industrial, heating, and air conditioning controls. With a primary voltage of 120/208/240 V AC and a secondary voltage of 24 V AC, this transformer is compatible with a wide range of applications, including air conditioning circuits, relays, and gas valves. The transformer is UL listed and class 2 certified, ensuring safety and reliability. With a power rating of 40VA, this transformer delivers efficient performance. Its compact dimensions of 2.97x2.28x1.1inch make it easy to install in tight spaces. Additionally, the ChooKaChoo Control Transformer comes with a 2-year warranty, providing peace of mind. Upgrade your HVAC system with the ChooKaChoo Control Transformer and experience improved performance and durability.

Jameco Reliapro Transformer is a reliable power solution. With an input voltage of 120Vac @ 60Hz, it efficiently converts to an output of 12Vac @ 1500mA. The compact size of 3.4"H x 2.7"W x 2.2"D makes it easy to store. The black case color adds a sleek look to your setup. The 6-foot output cord length provides flexibility in placement. Enjoy a stable power supply with the Jameco Reliapro Transformer.

The SIEMENS Power Transformer is designed to efficiently convert high voltages of 240 x 480, 230 x 460, or 220 x 440 V down to safer levels of 120, 115, or 110 V. With a rating of up to 300 VA, it ensures reliable power delivery for your needs. Its silicon steel-laminated core and copper magnet wire enhance efficiency, allowing you to save on energy costs. The epoxy encapsulation protects the transformer from moisture and dust, making it ideal for industrial environments. Additionally, built-in fuse clips streamline installation, saving you valuable panel space and reducing wiring time.

The MARS Transformer 50354 is a reliable power transformer designed to convert various voltages (120/208/240V) down to a useful 24V. Made in the United States, this model ensures quality and durability for your electrical needs. With compact dimensions of 3.9 inches in length, width, and height, it can fit easily into tight spaces, making installation convenient. Weighing only 3.0 pounds, you will find it lightweight and manageable for any project. This transformer is ideal for those looking to safely power devices that require lower voltage without compromising performance.

The Siemens MT0250A Industrial Power Transformer is designed to reduce primary voltage of 240 x 480, 230 x 460, or 220 x 440 V to secondary voltage of 120/115/110 V with a rating of up to 250 VA. It features a silicon steel-laminated core and copper magnet wire for increased efficiency, and is epoxy-encapsulated to resist moisture, dust, and industrial contaminants. With built-in fuse clips on the secondary side, users can save panel space and wiring time as they do not need to be manually installed in the field.

The Siemens Industrial Transformer is a powerful and efficient power transformer designed for domestic use. With its ability to reduce primary voltage from 240 x 480 V to a secondary voltage of 24 V, this transformer is perfect for a variety of applications. Rated up to 150 VA, it can handle heavy loads with ease. The silicon steel-laminated core and copper magnet wire contribute to its high efficiency, ensuring optimal performance. Additionally, the epoxy-encapsulated construction protects the transformer from moisture, dust, and industrial contaminants, making it durable and long-lasting. The built-in fuse clips on the secondary side save both panel space and wiring time, eliminating the need for manual installation in the field. The Siemens Industrial Transformer is a reliable and convenient solution for all your power transformation needs.