ABB MCRC-0-22-AT-B Industrial Relay Module For ABB MCRC Series

ABB MCRC022ATB is a four‑pole mini contactor relay in the MCRC series, delivering two normally open and two normally closed contacts (2NO + 2NC) with a 12 V DC coil. The variant is cataloged as 1SAH100020R9900 and is identified in ABB literature as MCRC022ATB within the MCRC 0‑22‑AT‑B family. Its compact footprint measures 49 mm in length, 46 mm in width, and 70 mm in height, making it suitable for space‑constrained control panels. This DC coil version is designed to switch moderate control loads in industrial automation, enabling coordinated switching of multiple circuits through its four contacts while accommodating standard ABB control architectures. As part of ABB’s MCRC mini cont actor family, it integrates with other ABB control components to support compact, reliable motor and load control in automation applications.