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This document presents additional characteristics of circuit breakers with a focus on various triggering mechanisms including thermal-magnetic triggers, electronic triggers, and control units. The objective is to evaluate their protection capabilities across different applications, such as those requiring thermal and magnetic circuit break features in compliance with European standards. The methodology employed includes a detailed analysis of the trip curves and limitations associated with multiple circuit breaker models including Multi 9, Compact, and Masterpact series. Results indicate that different curves (B, C, D, MA, K, Z) cater to varied application needs, providing insights into overload and short-circuit protection specifications. The document concludes with essential operational parameters and standards applicable to these devices.