ABB 1163801 MG-6 Multi-Contact Auxiliary Relay

ABB 1163801 MG-6 Multi-Contact Auxiliary Relay is a compact 125 VDC coil auxiliary relay in ABB's MG-6 family, designed to expand the contact set used by protective relays in safety‑critical control schemes across power and process applications. The 1163801 variant traces its Westinghouse/Cutler Hammer lineage and features front‑connected terminals with a surface‑mount installation style, packaged for shipping in an 8 x 8 x 8 inch carton and weighing roughly 5 lb. As an auxiliary relay, the MG‑6 provides additional signaling, interlock, or alarm functionality that can be wired independently of the main power path, enabling reliable status monitoring and fault isolation within relay banks. ABB documentation places the MG‑6 in Class 1E safety applications, confirming its role in critical protection circuits and its compatibility with legacy MG‑series interfaces for integration into older protection schemes.