1SAM340000R1007

ABB 1SAM340000R1007, model MS132-2.5T, is a compact 3-pole circuit breaker specifically designed for primary-side transformer protection. It provides fuse less overload and short-circuit protection and is suitable for control transformers used in industrial control panels, automation systems, OEM machinery and electrical distribution equipment. ABB specifies a rated operational current of 2.5 A for this model. The MS132-2.5T has an adjustable current setting range of 1.60–2.50 A and a fixed instantaneous magnetic short-circuit trip of 50 A, approximately 20 times the rated operational current. This characteristic helps the breaker tolerate the high inrush current that occurs when transformers are energized.