SG65LE-63 RCBO Miniature Circuit Breaker with Overload and Short Circuit Protection for Industrial Use

SG65LE-63 RCBO is a residual current operated circuit breaker with overcurrent protection, designed for use in AC power systems with a frequency of 50/60Hz and rated voltages of 230V for single-phase and 400V for three-phase applications. This device automatically cuts off the power supply when it detects an electric shock or when the residual current exceeds the preset value, thereby ensuring personal safety and preventing equipment damage due to fault currents. It also provides reliable protection against overload and short circuit conditions and can serve as an infrequent switch under normal operating conditions.

The RCBO is constructed from high-quality, flame-retardant PA66 nylon material, ensuring durability and safety with a protection degree of IP20. It complies with international standards including IEC60898 and IEC1009-1, as well as GB16917.1, guaranteeing its performance and reliability in various electrical environments. Additional protection functions such as overvoltage and undervoltage can be integrated based on customer requirements, offering flexibility for specialized applications.

Structurally, the SG65LE-63 series combines a high-breaking MCB with a residual current release mechanism. It operates electronically and includes key components such as a zero-sequence current transformer, an electronic control panel, a leakage release unit, and a circuit breaker with overload and short circuit protection capabilities. This design ensures quick and accurate response to fault conditions, minimizing risks and enhancing system safety.

With a mechanical life of up to 10,000 operations and options for 1, 2, 3, or 4 poles, this RCBO is versatile and suitable for a wide range of installations. It is available in multiple rated currents from 1A to 63A, allowing for precise matching to circuit requirements. The breaking capacity is rated at 4kA or 6kA, depending on the model, and it supports both lighting and motor protection curves (Type B, C, or D), providing tailored solutions for different load types.