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An Electromagnetic Residual Current Device for Enhanced Electrical Safety

Nov-04-2025
wanlai electric

The Residual Current Device, model JC3RH-EV, represents a critical component in modern electrical safety systems. As an electromagnetic type device, its primary function is to provide reliable leakage current protection by continuously monitoring the electrical circuit. It is engineered to automatically disconnect the power supply when it detects an imbalance between the live and neutral conductors, a key indicator of current leakage. This fundamental operation makes the Residual Current Device an indispensable safeguard against electric shock hazards and potential electrical fire risks in various installations.

 

A key technical feature of this device is its robust breaking capacity, which is rated at either 6kA or 10kA. This specification denotes its ability to safely interrupt electrical faults, even under significant short-circuit conditions, thereby preventing damage to the electrical installation. with a rated current of up to 100A, this Residual Current Device is suitable for a wide range of applications, from residential consumer units to commercial and light industrial distribution boards, ensuring the protection of entire circuits rather than individual outlets.

 

The device’s sensitivity and detection capabilities are crucial to its protective function. Its tripping sensitivity of up to 30mA is widely recognized and effectively prevents electric shock hazards. It can detect smooth DC residual currents as low as 6mA, making it particularly important in modern applications such as electric vehicle charging stations and circuit electronics, where DC fault currents may exist that standard AC devices may fail to detect.

 

In terms of design and compliance, this Residual Current Device offers practical installation flexibility with options for top or bottom connection, accommodating different wiring preferences and panel layouts. Its conformity with international standards IEC 61008-1 and IEC 62955 serves as a formal verification of its safety, performance, and reliability. These certifications assure that the device has undergone rigorous testing and meets the stringent requirements set for electromagnetic RCDs, including those specifically for EV charging applications.

 

The JC3RH-EV model embodies a sophisticated and highly reliable safety solution. Its electromagnetic operation ensures functionality independent of the supply voltage, while its high breaking capacity, 30mA trip sensitivity, and specialized DC detection capability make it a versatile and robust component. This Residual Current Device is engineered to meet the evolving safety demands of both conventional and contemporary electrical systems, providing essential protection for persons and property.

Residual Current Device

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