1SAM340000R1002

ABB 1SAM340000R1002, model MS132-0.25T, is a compact 3-pole circuit breaker designed for primary-side transformer protection. It provides fuse less overload and short-circuit protection for control transformers and is suitable for industrial control panels, automation systems and machine-building applications. The MS132-0.25T has a rated operational current of 0.25 A. Its magnetic short-circuit trip setting is fixed at approximately 20 times the rated operational current, helping the breaker tolerate the high inrush current normally produced when transformers are energized. The device offers a rated service short-circuit breaking capacity of 100 kA at 400 V AC and features Trip Class 10 protection.