Best Isolation Transformers of 2026

The ELK TRG1640 Transformer offers several handy features for your electrical needs. It includes a built-in resettable fuse that helps protect your devices from power surges by automatically resetting after a fault, so you don’t have to replace fuses. A green power indicator light lets you easily see when the transformer is on and working. The grounding prong and terminal provide added safety by reducing the risk of electrical shocks. Plus, the transformer can be mounted directly onto an electrical outlet for convenient and secure installation. These features make the ELK TRG1640 Transformer a practical and user-friendly choice.

The Packard Control Transformer is designed to provide reliable voltage control for your electrical systems. It features a two-foot mounting setup, which makes installation straightforward and stable, helping you securely position the transformer in your workspace. The primary voltage options of 120, 208, or 240 volts allow flexibility to match various power sources, ensuring compatibility with your existing equipment. On the output side, you get a steady 24-volt supply, which is ideal for controlling devices that require lower voltage. With a 40 VA rating, this transformer can handle moderate power loads efficiently, giving you peace of mind for your control applications.

The ART Microphone Splitter is a handy electronic cable designed to split or combine microphone signals efficiently. Its size, measuring about 33.5 cm long, 16.5 cm wide, and 5.6 cm high, makes it compact enough to fit comfortably in your setup without taking up much space. Weighing just 1 pound, it is lightweight and easy to handle or transport, offering convenience whether you’re on stage or in the studio. Made in China, this product belongs to the isolation transformer category, providing reliable audio signal management to help you monitor and control your sound with ease.

The Bogen WMT1A Transformer helps you convert high-impedance audio signals into balanced lines, which means your sound stays clear and free from interference during transmission. It offers a balanced 600 Ω output, perfect for applications like telephone paging or music-on-hold, ensuring your audio reaches its destination without quality loss. Connecting your devices is simple thanks to the RCA input for high-impedance sources and screw terminals for balanced output—no soldering needed. Plus, it maintains excellent sound quality across a wide range of frequencies, so both speech and music come through crisp and natural. This makes the Bogen WMT1A Transformer a practical choice for clean, reliable audio connections.

The MSMJSFA 12V Power Adapter is designed to provide a reliable 12V AC power supply with an input of 120V AC at 60Hz, making it compatible with various devices requiring 700mA to 1000mA current. This means you can use it as a replacement for several power adapters, ensuring flexibility and convenience. It also features built-in safety measures like automatic cut-offs for overload and overheating, which protect your devices and give you peace of mind. The plug-in wall adapter design saves space and plugs directly into standard sockets, making setup quick and hassle-free for you.

The AEDIKO Audio Transformer offers a reliable solution for your audio needs. With a high AC impedance of 1300:8 ohms, it ensures effective voltage transformation and impedance matching, helping your devices work smoothly. Made from quality materials, this transformer provides a wide pass-band and minimizes energy loss, meaning you get clearer sound with less distortion. Its stable and dependable design makes it easy to use, giving you confidence in consistent performance for voltage amplification or power output tasks. Whether you're working on radio communication or broadcast projects, this transformer simplifies your setup while boosting efficiency.

Eliminate TV signal interference and enjoy crystal clear HDTV with this ground loop isolator transformer. It fits any 75 ohms coaxial and provides galvanic isolation to prevent buzz in sound systems and hum bars that appear on video monitors. The isolator's frequency range is 5-1000MHz, making it suitable for IPTV installations utilizing HPNA or MoCA signaling over coaxial cable. The copper and shielding layer metal shell eliminates ground loops and provides a degree of protection for electronic equipment. The F connector type is female to male.

The HiLetgo 5pcs EI14/EI-14 Audio Coupling Isolation Transformer is designed to provide high pressure and stable performance. With an AC impedance of 600:600 Ohm and an inductance of 290mH (±20%), this transformer is perfect for audio applications. The QA-1 0.06MM quality wire diameter ensures a reliable and durable performance. This Isolation Transformer is ideal for use in audio applications where it can help to reduce noise and provide a clear sound.

The TRADEPRO Multi-Voltage Transformer is designed with a sturdy build, so you can count on it to last through tough industrial or commercial use. It supports multiple input voltages—120, 208, 240, and 480 volts—giving you flexibility to power different devices without needing multiple transformers. Installation is hassle-free thanks to its chassis mount design, making setup quick and secure. Plus, it can handle higher frequencies up to 480 hertz, which is ideal if you're working with equipment that requires more demanding power conditions. Overall, this transformer offers reliable and adaptable performance for your power needs.

The MG Electronics Security Transformer is designed to provide reliable power conversion with dual voltage options of 12V DC and 24V AC. This feature allows you to easily use it in different security systems that require specific voltage inputs. As an isolation transformer, it helps protect your equipment from electrical noise and interference, ensuring smoother and safer operation. The product is part of the trusted Mega Cap brand, known for durable and efficient electronic components. With the MG Electronics Security Transformer, you get a versatile and dependable power solution for your security setup.