ABB ST201M-D8 Industrial Safety Relay Module 24VDC

ABB ST201M-D8 is a compact miniature circuit breaker (MCCB) from ABB Electrification’s ST family, designed to interrupt current in electrical distribution circuits and provide reliable overcurrent protection in control panels, distribution boards, and other electrical assemblies. The device is rated for an In of 8 A, according to ABB’s catalog data, which makes it suitable for protecting smaller branch circuits and ensuring prompt disconnection during overload or short-circuit events. Listed in ABB’s official Electrification catalog under Mini Circuit Breakers and Residual Current Devices, the ST201M-D8 sits among ABB’s modular protection devices and is intended for straightforward integration with other ABB protective components within standard installations. In ABB’s documentation, the ST201M-D8 is positioned squarely within the MCCB category for distribution protection, reflecting its role as a protective device in low-voltage circuits rather than a standalone safety-relay module.