Best Current Transducers of 2026
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Current transducers are devices that are used to measure electrical currents in a circuit. They are designed to convert the electrical signals into a proportional output signal, which can be used for monitoring and control purposes. These transducers are widely used in various industrial applications, including power generation, renewable energy, and process control. They are available in different types, such as Hall effect, Rogowski coil, and current transformers, each with its own unique features and advantages. With their high accuracy and reliability, current transducers are essential components in many modern electrical systems.
At a Glance: Our Top Picks
Top 10 Current Transducers
Johnson Controls CTD-C2G00-1 Current Transducer
The Johnson Controls Current Transducer offers a clamped core design that significantly cuts down installation time and costs, making it user-friendly. With a slide switch for selectable amperage ranges, you can easily match the device to your specific application needs. It also supports multiple output options, including 4 to 20 mA and 0 to 10 VDC, ensuring compatibility with various systems. Additionally, the snap-on power relay feature allows for quick integration of an external relay, enhancing functionality and convenience.
SazkJere SCT013 20A Split Core Current Transformer
The SazkJere SCT013 Sensor is a compact and lightweight current transformer designed with a split-core size of 56 by 32 by 21mm, weighing just 72 grams, making it easy for you to handle and install. It comes with a one-meter long lead wire, giving you flexibility in positioning the sensor in your setup. The sensor features a standard 3.5mm three-core plug that provides both current and voltage outputs, allowing you to monitor electrical parameters conveniently. With an input range of 0 to 20 amps AC and a 1V output, this device is perfect for DIY projects and works well with popular platforms like Arduino and Raspberry Pi, helping you build or improve your electrical monitoring systems with ease.
nodehawk FCS2151-SD-5V Current Transducer
The nodehawk Current Transducer is designed for accurate and stable AC current monitoring, making it ideal if you need reliable current measurement. Its mutual inductance technology ensures precise detection even in strong magnetic fields, so you can trust its readings. The device offers flexibility by supporting various current ranges and output signals, allowing you to choose the best option for your setup. Installation is simple and convenient since you won’t need to connect any DC components during measurement. Plus, its through-core design provides excellent electrical isolation, keeping you and your equipment safe with a 2000V AC withstand voltage rating.
nodehawk FCS521-SD-420E Current Transducer
The nodehawk Current Transducer offers precise AC current monitoring with high accuracy, making it a reliable tool for measuring currents from 0 to 50A. Its design ensures safe separation between input and output, protecting you and your equipment. The device works well even in environments with strong magnetic fields, thanks to its low magnetic hysteresis. Installation is straightforward, and you don’t need to add any extra components to your circuit, which saves you time and effort. Plus, its built-in isolation can handle voltages up to 2000V AC, providing extra safety during use. This makes it a convenient and secure choice for your current monitoring needs.
MOMOJA 4-20mA Current Loop Signal Generator
The MOMOJIA Current Loop Generator is designed to work with 2, 3, or 4-wire systems, giving you flexible wiring options without worrying about damaging your equipment. It offers nine programmable output settings, allowing you to simulate real-world testing conditions by adjusting current levels and running times to match your specific needs. The device uses a digital rotary encoder for precise adjustments, which is more reliable than traditional potentiometers that can be affected by temperature and humidity. Plus, you can connect it in either polarity on a two-wire system, so wiring mistakes won’t harm your meter, providing you with peace of mind and easy setup.
Current Transmitter FCS521-SD-5V
The Nodehawk Current Transmitter is a high-performance current monitoring device that offers accurate and stable measurements. With its mutual inductance current monitoring, it ensures high current detection accuracy and safe isolation of input and output. The device is capable of measuring AC current ranging from 0-10A, 20A, to 50A, and provides output signals in three different forms: 0-5V, 0-10V, and 4-20mA. Its through-heart structure design allows for easy installation and use without the need to connect the DC series into the circuit during measurement. Additionally, the Current Transmitter features a durable outer casing made of self-extinguishing material, ensuring safety and longevity. It is suitable for various applications requiring current and voltage conversion, offering strong overload ability, high precision, high isolation, and low power consumption.
Current Transmitter SZT20-CH-420E
The Current Transmitter SZT20-CH-420E offers high-accuracy, stable performance, and safe isolation between input and output. It has a through-heart structure design and can withstand voltage up to 2000V AC. Users can select from a variety of output signals, making it easy to install and use. It is suitable for various applications that require current and voltage conversion, providing high precision, security, and anti-interference ability.
Yanmis SZT15-CH-420E Current Transducer
The Yanmis Current Transducer is designed for real-time measurement of AC current, converting it to a DC output of your choice, such as 0-5V or 4-20mA. With a remarkable insulation withstand voltage of 2000V AC, it ensures safety and reliability in various electrical environments. You will appreciate its low magnetic hysteresis, making it effective even in strong magnetic fields. Additionally, its durable casing not only resists high overloads but also minimizes power consumption and interference, providing you with a dependable tool for monitoring and controlling AC current.
FEARLIE AC Current Transmitter 0-100A 4-20mA Output
The FEARLIE AC Current Transmitter lets you measure AC current in real time with selectable ranges from 0-5A up to 0-200A, giving you flexibility to match your specific needs. It converts the measured AC current into a standard 4-20mA DC signal, making it easy to connect with your control systems or instruments. This device is designed with high precision and strong overload protection, so you can rely on accurate readings even in demanding environments. Plus, its high isolation and interference resistance ensure stable and safe operation, helping you maintain smooth industrial automation processes.
SazkJere SCT016 120A Split Core Current Transformer
The SazkJere SCT016 Transformer is a compact and lightweight current sensor designed for easy installation. With a maximum input of 120A and an output of 40mA, it allows you to accurately measure electrical current in your projects. Its split-core design includes a safety lock buckle, so you can open and close the sensor around a wire without disconnecting it, making setup quick and safe. The 50cm cable output gives you flexibility in positioning the sensor, perfect for DIY electronics, especially when working with Arduino or Raspberry Pi systems.
Frequently Asked Questions (FAQs)
1. Where are current transducers used?
Current transducers are commonly used in Building Automation Systems (BAS). They can be found in applications such as digital signaling current transducers for indicating motor status (e.g., pumps or fans) and analog signal current transducers for measuring electrical usage.
2. What is the function of a current transducer with 4-20mA output?
A current transducer with a 4-20mA output can be used to monitor the current in motor windings. It can easily interface with a PLC or remote telemetry unit. These transducers provide features like galvanic isolation between input/output, high accuracy, low drifting by temperature, and wide temperature operational range.
3. What are the common types of transducers?
There are three main types of transducers: convex/curvilinear, linear, and phased/sector transducers. Additionally, there are specialized transducers like endocavity, transesophageal, volume, and continuous wave (CW)/pencil transducers.
4. How do you wire a current transducer?
To wire a current transducer, connect the positive (+) terminal of the transducer to the AIN0 of the LabJack. Connect the negative (-) terminal of the transducer to the GND of the LabJack. The Range Jumper on the transducer has different settings, such as Low: 10 AMPS: 10 VDC (Recommended).
During our current transducer research, we found 24 current transducer products and shortlisted 10 quality products. We collected and analyzed 2,625 customer reviews through our big data system to write the current transducers list. We found that most customers choose current transducers with an average price of $27.47.
The current transducers are available for purchase. We have researched hundreds of brands and picked the top brands of current transducers, including Johnson Controls, SazkJere, nodehawk, MOMOJIA, Walfront. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.
Brian Howie is a content writer and senior industrial designer. After graduation from Westminster College, he has been engaged in product design and manufacturing for 18 years. Brian Howie has always found great pleasure in designing industrial products and sharing his ideas and experience online.