1SAM340000R1014 ABB - MS132-25T

The MS132-25T is a compact, 45 mm wide circuit breaker meticulously engineered by ABB for robust transformer protection, specifically on the primary side. This device provides fuse-less protection against both overload and short-circuit conditions, ensuring reliable operation and minimizing downtime. With a rated operational current (Ie) of 25 A, it is ideally suited for control transformers. To effectively manage the substantial inrush currents characteristic of transformers, the short-circuit current setting is precisely calibrated to 20 times the rated operational current. The integrated disconnection function enables manual connection and disconnection of the transformer from the mains, offering enhanced control and safety. Boasting a rated service short-circuit breaking capacity (Ics) of 50 kA at 400 VAC and a trip class 10, the MS132-25T delivers exceptional performance under demanding conditions. Additional features include temperature compensation for stable operation across varying ambient temperatures, a trip-free mechanism to prevent contact welding, a rotary handle with clear switch position indication, and a short-circuit trip indicator for immediate fault identification. The lockable handle prevents unauthorized adjustments, enhancing safety and security. A comprehensive range of accessories, such as auxiliary contacts, signaling contacts, undervoltage releases, shunt trips, power in-feed blocks, and terminal spacers, are available to expand functionality and customization.