What is an RCMU and Why is it important for EV Charger?
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Pulished on Feb. 09, 2026
In the electrical and industrial sectors, RCMU typically refers to a Residual Current Monitoring Unit. It is a critical safety component used to monitor for residual current ("leakage current") in a system in real time. An RCMU is a high-precision sensor or protection device primarily used to detect residual current in both AC and DC.
Comparison of Split Core WiFi Power Sensor and Lorawan Energy Meter
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Pulished on Jan. 23, 2026
Both clamp WiFi power sensors and LoRaWAN energy meters are smart devices used to monitor electricity usage, but they differ significantly in installation methods and communication technologies. The former is easier to install, while the latter is a professional metering instrument suitable for long-term, large-scale energy management and billing.
Wireless CT Current Sensor Empowering Efficient Energy Management
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Pulished on Dec. 16, 2025
In the invisible world of electricity, there is a silent guardian that, in a way we cannot perceive, quietly ensures the stability and safety of the power system. This is the wireless current sensor—a revolutionary current monitoring solution. It eliminates the need for cumbersome wiring, using wireless technology to achieve real-time monitoring.
What EVSE components are needed to build a charging station?
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Pulished on Nov. 13, 2025
EV charging components include relays for switching high-current AC power, a residual current monitor (RCM) for safety, and a current transformer (CT) for measuring current (typically for load balancing). AC voltage sensing components are also crucial for monitoring and ensuring the correct voltage is supplied to the vehicle.
MD0630STA-PM RCD: Type B Quality, Type A Price!
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Pulished on Oct. 09, 2025
Cost-effective Type B RCD sensors, such as the newly developed sensor from IVY Metering (MD0630STA-PM), can detect both AC and DC leakage currents at a lower cost than traditional Type B RCDs by integrating specialized sensors into EV chargers and other devices. This sensor offers protection against electric shock.
