{"product_id":"abb-mazz5z3gc1-mmco-multiphase-overcurrent-relay","title":"ABB MAZZ5Z3GC1 MMCO Multiphase Overcurrent Relay","description":"\u003cdiv\u003eABB MAZZ5Z3GC1 Type MMCO Multiphase Overcurrent Relay is a microprocessor-based protective relay that delivers precise overcurrent protection for 2- or 3-phase circuits with ground sensing, using separate phase and ground trip channels. Designed for 5 A CT input configurations, this version supports 50\/60 Hz operation and programmable tripping behavior through eight time-curve families, allowing you to tailor the relay’s time response to coordination with fuses, reclosers, and motor-start protection. The MMCO family combines instantaneous and time-delayed overcurrent protection with configurable phase and ground settings, making it suitable for protecting feeders, motors, transformers, and other multi‑phase loads in industrial or utility applications. Powering the relay typically involves a DC supply option, with versions that cover common DC ranges such as 48\/125 VDC (and other variants available by model), and it includes communications features that enable immediate fault\/status data retrieval and remote resetting or reconfiguration. This combination of independent phase\/ground tripping, multiple time-current options, and remote data access helps improve selectivity, reduce nuisance trips, and simplify protection scheme management for multi‑phase distribution circuits. The MAZZ5Z3GC1 designation specifically indicates the 5 A CT input variant within the MMCO multiphase overcurrent relay family, providing a compact, programmable solution for safeguarding electrical systems against excessive current while supporting precise coordination with upstream protective devices.\u003c\/div\u003e","brand":"ABB","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51656772419886,"sku":null,"price":64.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_13ea9aac-fe51-465b-84c3-301edb32f6ed.jpg?v=1769463367","url":"https:\/\/plgautomation.com\/products\/abb-mazz5z3gc1-mmco-multiphase-overcurrent-relay","provider":"PLG Automation ","version":"1.0","type":"link"}