NTR002-A | ABB | Residual Current Circuit Breaker

Description

The NTR002-A is an ABB Residual Current Circuit Breaker (RCCB), a type of protective electrical device designed to automatically disconnect circuits when residual current exceeds a set threshold, preventing electric shock hazards and electrical fires caused by ground faults. As a residual current protection device, it operates by monitoring imbalances between phase and neutral currents, triggering a rapid trip to cut power when dangerous leakage is detected. While specific technical parameters for the NTR002-A are not available, it falls within a product category that typically includes two core designs: electromagnetic models, which use electromagnet suction to drive tripping, and electronic models, which rely on amplified electronic circuits to actuate the trip mechanism.

This device aligns with general residual current breaker applications, serving as an additional protection measure for direct contact shock prevention and limited protection for indirect contact risks. It may be suitable for use in scenarios like medical equipment, outdoor electrical installations, and construction machinery, where reliable ground fault protection is required. For specialized high-risk environments such as explosion-proof areas, compatible ABB residual current breakers with overcurrent protection (RCBO) can be installed in explosion-proof enclosures and operated via external auxiliary devices to avoid arc-related safety hazards, though this configuration applies to related product lines rather than the exact NTR002-A model.