1SAM340000R1010

ABB 1SAM340000R1010, model MS132-10T, is a compact 45 mm wide, 3-pole circuit breaker designed for primary-side protection of control transformers. It provides fuse less overload and short-circuit protection and also allows manual connection and disconnection of the transformer through its built-in isolating function. The MS132-10T has an adjustable current setting range of 6.3–10 A with a rated operational current of 10 A. Its instantaneous short-circuit release is fixed at 20 times the rated operational current, equivalent to approximately 200 A, to accommodate transformer inrush current during energization.