What does a "T" rating on a carabiner indicate?

A "T" rating on a carabiner signifies that the carabiner is designed for use in fall protection systems, which are subject to the highest loads. This designation indicates that the carabiner is tested and verified for strength capabilities that align with rigorous safety standards, making it suitable for critical applications where the potential for dynamic forces during a fall is significant.

Understanding the context of load ratings is essential in technical rescue scenarios, as equipment needs to withstand the stresses that can arise from sudden impacts or abrupt changes in load. Hence, a "T" rating confirms that this type of carabiner can handle extreme situations, ensuring the safety of the rescuers and individuals being rescued.

The other choices reference specific breaking strengths or imply suitability for lower loads, which do not accurately describe the significance of the "T" rating and its focus on high-load performance in demanding environments.