{"product_id":"abb-spaj144c-aa-overcurrent-earth-fault-protection-relay","title":"ABB SPAJ144C-AA Overcurrent \u0026 Earth-Fault Protection Relay","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe ABB SPAJ144C-AA is a microprocessor-based protection relay designed for dependable overcurrent and earth-fault protection in medium-voltage power distribution systems. It is suitable for radial feeders and general protection tasks in industrial plants, substations, and utility networks.\u003c\/p\u003e\n\u003cp\u003eThe relay combines phase overcurrent and earth-fault protection with selectable definite time and inverse time characteristics. High-set instantaneous elements provide fast fault clearance, while integrated circuit breaker failure protection improves overall system security. Flexible output relay logic allows easy integration into existing protection schemes.\u003c\/p\u003e\n\u003cp\u003eAs a member of ABB’s SPACOM protection family, the SPAJ144C-AA offers stable long-term operation, continuous self-supervision, and compatibility with distribution automation and DCS environments.\u003c\/p\u003e\n\u003ch3\u003eKey Functions and Characteristics\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eThree-phase overcurrent protection with low-set and high-set stages\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEarth-fault protection with definite time and IDMT characteristics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInstantaneous tripping for high fault currents\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIntegrated circuit breaker failure protection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eContinuous self-diagnostics for internal electronics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLocal display for values, events, and settings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRemote configuration and monitoring support\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eMedium-voltage feeder protection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIndustrial power distribution systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUtility substations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSolidly earthed, resistance-earthed, or impedance-earthed networks\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Information\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eModel: SPAJ144C-AA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProduct Type: Combined Overcurrent and Earth-Fault Relay\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProduct Family: SPACOM\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSystem Compatibility: DCS \/ Distribution Automation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCommunication: Ethernet router\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCondition: Brand New\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOrigin: Sweden\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWeight: 3.36 kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDimensions: 14 × 25 × 16 cm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHS Code: 8537101190\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLead Time: In Stock\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMinimum Order Quantity: 1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":45519003713709,"sku":"SPAJ144C-AA","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/abb-spaj144c-aa-combined-overcurrent-and-earth-fault-relay-pwkeognwnu5.jpg?v=1766984565","url":"https:\/\/www.maxwellplc.com\/products\/abb-spaj144c-aa-overcurrent-earth-fault-protection-relay","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}