Circuit breakers handle the circuit protection, while RCDs ensure that current imbalances don’t put lives at risk. It’s like a dynamic duo working together to keep both circuits connected and people safe. In electrical systems, understanding the distinct roles of these two components is crucial for ensuring safety and functionality—and when it comes to reliable RCD solutions, the 40 Amp Rcd Breaker from Zhejiang C&J Electrical co., ltd. stands out as a top-tier choice.
Circuit breakers are primarily designed to protect electrical circuits from overloads and short circuits. They monitor the flow of current and automatically trip to interrupt the circuit if the current exceeds safe limits, preventing damage to wires, appliances, and other electrical equipment. RCDs (Residual Current Devices), on the other hand, focus on human safety by detecting imbalances between the live and neutral conductors. Even a small leakage current (as low as 30mA) can indicate a potential electric shock hazard, and RCDs react in milliseconds to cut off power, safeguarding lives in residential, commercial, and industrial settings.
The 40 Amp Rcd Breaker is a key product in Zhejiang C&J Electrical co., ltd.’s CJL1 series RCCB lineup, engineered to combine high performance with enhanced safety. One of its core advantages lies in the plastic operating mechanism, which offers more stable and reliable performance than traditional metal structures—particularly in terms of release force consistency and mechanical lifespan. This innovative plastic structure also makes the product more environmentally friendly than metal alternatives, aligning with modern sustainability standards as a new-generation mechanical design.
Inside the 40 Amp Rcd Breaker, all current-carrying components are made of copper, ensuring excellent conductivity and heat resistance for long-term reliable operation. Every screw hole is sealed with a plastic cover, preventing accidental opening and eliminating potential safety risks. The product also features a large-size transparent label area, allowing users to add special markings for easy identification and management. Its brand-new tripping structure further enhances safety, ensuring rapid and accurate response to residual current imbalances.
Beyond the 40 Amp rating, the CJL1 series RCCB offers a wide range of specifications to meet diverse needs: rated current from 6A to 125A, pole configurations of 1P+N and 3P+N, and compatibility with AC, A, and B type leakage current detection. Rated residual operating currents include 10mA, 30mA, 100mA, and 300mA, with a breaking capacity of 10kA. The product is designed for 35mm rail and pin busbar installation, making it easy to integrate into existing electrical systems.
Compliant with the IEC61008-1 standard, the CJL1 series RCCB has obtained multiple international safety certifications including CE, CB, TUV, SAA, and UKCA, validating its high safety performance and global applicability. Whether for residential buildings, office spaces, factories, or public facilities, this RCD solution provides robust protection against electric shock hazards while ensuring the stability of electrical circuits.
At Zhejiang C&J Electrical co., ltd., we are committed to delivering high-quality electrical protection products that prioritize safety, reliability, and environmental responsibility. The 40 Amp Rcd Breaker and the full CJL1 series RCCB lineup are testaments to this commitment. If you have any questions about product specifications, applications, or customization needs, please feel free to contact us at any time—our professional team is ready to provide you with comprehensive support.
Post time: Dec-09-2025