{"product_id":"spaj110-c-aa-abb-protection-relays-spacom-series","title":"SPAJ110 C-AA ABB Protection Relays SPACOM Series","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSPAJ110 C-AA\u003c\/strong\u003e, also cataloged as the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSPAJ110 C-AA\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eProtection Relays\u003c\/strong\u003e, operates as a dedicated hardware component for signal processing or control execution within industrial automation architectures. This module is engineered specifically for earth-fault and overcurrent monitoring in medium-voltage power distribution networks. By analyzing current differentials from transformer secondary outputs, the device identifies fault conditions and executes isolation protocols to prevent hardware failure. The unit integrates into electrical protection schemes, providing consistent monitoring of electrical grid stability while maintaining high operational accuracy through selectable current threshold settings and wide-range auxiliary power inputs.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSPAJ110 C-AA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eABB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOrigin\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSweden\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.36 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e14.5 x 18 x 15 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-25 to +55 deg C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u0026lt; 0.5 VA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRated Current\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSelectable 1 A or 5 A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eAuxiliary Voltage\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e48 to 250 V AC\/DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eContact Rating\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5 A at 250 V AC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eBrand-Specific Technical Block\u003c\/h3\u003e\n\u003cp\u003eThe SPAJ110 C-AA belongs to the ABB SPACOM protection relay family, which utilizes dedicated firmware for deterministic fault detection. The relay interfaces with secondary transformer circuits to monitor current amplitude and phase characteristics. Its low-burden design ensures that the burden on measurement transformers remains below 0.5 VA, allowing for precise CT output management. Integration with broader automation systems, such as Advant OCS or 800xA, is managed through the relay’s internal logic and contact outputs, which provide status signaling for centralized process supervision. The unit’s firmware supports standardized trip-timing curves for time-coordinated protection within a substation hierarchy.\u003c\/p\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eIncluded items: SPAJ110 C-AA protection relay unit, panel mounting brackets.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStandard package: Industrial anti-static moisture-resistant packaging.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOptional accessories: Spare terminal block connectors, fiber-optic communication adapters for system bus integration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eEnsure the relay is mounted in a panel cutout that provides adequate mechanical support for the 2.36 kg weight.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTerminate all secondary CT circuits with appropriate lug sizes to ensure low-resistance connections and prevent overheating.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVerify auxiliary power wiring is within the 48 to 250 V AC\/DC range; improper voltage levels may damage internal power conditioning circuitry.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProvide clear physical separation between sensitive signal wiring and high-current power cables to minimize inductive interference.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eShielding should be terminated at the panel common ground point to maintain electromagnetic compatibility (EMC) standards.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConfirm that the rated current (1 A or 5 A) jumper or configuration setting matches the connected CT secondary output before energizing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the SPAJ110 C-AA support hot-swap behavior?\u003c\/p\u003e\n\u003cp\u003eA: The relay is not designed for hot-swapping. Disconnect the auxiliary power and secondary CT leads before removing the unit from the panel.\u003c\/p\u003e\n\u003cp\u003eQ: How does the relay affect backplane load in a control system?\u003c\/p\u003e\n\u003cp\u003eA: The unit is a field-level device; it does not draw power from the DCS backplane, and its impact on the system bus is limited to digital signal reporting.\u003c\/p\u003e\n\u003cp\u003eQ: Is there a redundancy switching delay?\u003c\/p\u003e\n\u003cp\u003eA: This relay operates as a local protection unit and does not participate in system-level network redundancy switching.\u003c\/p\u003e\n\u003cp\u003eQ: Is firmware compatibility required for operation?\u003c\/p\u003e\n\u003cp\u003eA: The firmware is fixed at the factory. Ensure the application protection logic matches the relay's programmed trip characteristics.\u003c\/p\u003e\n\u003cp\u003eQ: Does the unit provide signal isolation?\u003c\/p\u003e\n\u003cp\u003eA: The relay provides internal galvanic isolation between the auxiliary power, measurement inputs, and contact outputs to protect system electronics.\u003c\/p\u003e\n\u003cp\u003eQ: What are the field wiring constraints for CT inputs?\u003c\/p\u003e\n\u003cp\u003eA: Use conductors sized according to local electrical codes for 5 A circuits; keep wiring runs as short as possible to minimize loop impedance.\u003c\/p\u003e\n\u003cp\u003eQ: Can the relay operate in high-vibration environments?\u003c\/p\u003e\n\u003cp\u003eA: The relay is rated for standard industrial conditions. For high-vibration scenarios, ensure panel mounting hardware is secured with appropriate locking mechanisms.\u003c\/p\u003e\n\u003cp\u003eQ: How is the current rating configured?\u003c\/p\u003e\n\u003cp\u003eA: The 1 A or 5 A rating is selected via internal hardware settings or jumpers; follow the provided technical wiring diagrams to configure correctly.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":45231184117933,"sku":"SPAJ110 C-AA","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/abb-spaj110-c-aa-earth-fault-relay-zpuur4kh3w3_bade0764-350a-4bfb-b6fb-77c7d67036d6.jpg?v=1762942368","url":"https:\/\/www.maxwellplc.com\/ga\/products\/spaj110-c-aa-abb-protection-relays-spacom-series","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}