Best Current Monitoring Relays of 2026

The MECCANIXITY Current Switch is a reliable device designed to monitor DC current accurately. It uses mutual induction to detect changes in current, allowing you to isolate and control DC current effectively. This means you can trust it to provide timely and precise switching signals, which is more dependable than traditional methods. The switch offers flexibility with both normally open and normally closed relay types, letting you choose the setup that best fits your needs. It also features LED indicators that clearly show whether the current is above or below your set point, making it easy for you to monitor the status at a glance. Plus, its durable ABS fireproof shell ensures it can withstand heat and impact for long-lasting performance.

The LiebeWH Current Relay is designed to help you monitor DC current with great precision, measuring currents from 0 to 30 amps with accuracy down to 0.01 amps. This means you can keep a close eye on your electrical system and detect even small changes. It also has a power-saving feature that lets you turn off the LED display, helping you reduce energy use when the display isn’t needed. You can set current limits easily, which helps protect your circuits from damage by automatically controlling the relay. Plus, the module includes error calibration to ensure the readings stay accurate, giving you reliable performance every time.

The Hilitand 4-Channel DTMF Relay operates on a common 12V DC power supply, making it easy for you to find compatible power sources. It features reverse polarity protection, which helps extend the device's lifespan by preventing damage from incorrect wiring. With eight different control modes, including momentary, toggle, and various delay options, you can customize how the relays respond to your commands. The default setup allows you to control each of the four relays by dialing numbers 1 through 4, but you can easily change these commands to suit your needs. This makes the relay versatile and user-friendly for remote control applications.

The ZPSHYD Current Monitor Relay is designed to help you easily monitor both AC and DC currents between 2A and 20A, making it perfect for environments using mixed power systems. You can quickly set it to detect either too much or too little current, protecting your equipment from damage. It also features an adjustable overload protection knob, so you can set the exact current limit with fast response to prevent motor or heater failures. The handy LED lights give you clear, real-time status updates, so you always know if power is connected or if the relay is active. Plus, its durable flame-retardant material ensures safety even in tough industrial conditions.

The MECCANIXITY Current Switch is designed to help you monitor AC current accurately and efficiently. It uses mutual induction to detect AC current while keeping you safe by isolating it, which ensures precise and timely control. The switch operates normally open with a rated load of 0.3A at 240V AC/DC, allowing you to monitor currents from 0 to 50A. An LED indicator lets you easily check the switch’s status at a glance, especially when the current ranges between 0 and 30A. Plus, its durable ABS fireproof casing protects the device from heat and impact, giving you reliable performance in various environments.

The Current Sensing Switch SZC23 No AL-CH Model is a self-powered, adjustable AC switch that can handle currents from 0.2A to 30A. It features an LED indicator for easy monitoring of its working status, a high-power MOS tube contactless electronic switch, and fast reaction speed in the ms level. This switch is ideal for current monitoring relays.

The Allen-Bradley Series D Relay is a reliable current monitoring relay designed to help you keep track of electrical currents efficiently. Since this product is brand new, you can expect it to perform at its best without any wear or damage. Being part of the trusted Allen-Bradley brand means you’re getting a quality device that’s widely recognized for durability and precision. This relay is perfect for monitoring current in various electrical applications, providing you with peace of mind and enhanced safety in your electrical systems.

The nodehawk M3056 AC Switch with Rails is a versatile current sensing switch designed to simplify AC current monitoring. By utilizing mutual inductance, it can sense AC direct current, isolate the current, and output normally open or normally closed switch signals. This allows for direct control of various automated industrial equipment, such as flash lamps, buzzers, relays, and microcontrollers. Compared to traditional transformers and thermal protectors, the M3056 offers more accurate and timely control, while also reducing design complexity and costs. With a response speed in the millisecond range and a hysteresis of less than 1%, it can operate reliably even under strong magnetic conditions. The switch is self-powered and does not require an external power supply. The LED indicator light provides easy and intuitive indication of the switch's working status. Made with high-power MOS tube non-contact electronic switch and ABS material, the M3056 is heat-resistant, acid-alkali-resistant, and has high impact strength, ensuring stable performance.

The MECCANIXITY Current Switch is designed to accurately detect and control AC current by using mutual induction. This means you get precise monitoring and isolation of current, which is more reliable than traditional methods. It features a normally open relay that supports loads up to 0.3A at 240V AC/DC, letting you handle a wide range of current from 0.05 to 5 amps. The built-in LED indicator helps you easily see the switch’s status at a glance, making troubleshooting simple. Plus, its durable ABS shell is heat-resistant and impact-strong, ensuring the switch stays safe and stable during operation.

The Eujgoov SZC23 Current Switch offers a handy LED indicator that lets you easily see when the switch is active, so you stay informed without any guesswork. It has very low hysteresis, meaning it provides reliable performance even in strong magnetic environments, ensuring accurate current sensing. You don’t need to worry about extra power sources since the switch powers itself, simplifying installation and operation. Plus, you can adjust the current range from 0.2 to 30A using a built-in dial, giving you control to match your specific needs. This makes the SZC23 a convenient and flexible choice for monitoring AC current and protecting your equipment.