{"product_id":"ge-820-0431-02-relay-output-pcb-card","title":"GE 820-0431-02 Relay Output PCB Card","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eGE 820-0431-02\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003erelay output PCB is engineered for use within GE Mark V and Energy Control System (ECS) platforms. This board acts as the final control interface between turbine logic and field equipment, delivering dependable relay-based outputs to critical devices such as circuit breakers, solenoid valves, annunciators, and auxiliary protection circuits.\u003c\/p\u003e\n\u003cp\u003eDesigned for long-term operation in power generation environments, the board combines high-density relay architecture with onboard control logic and comprehensive diagnostics to ensure consistent signal execution and rapid fault identification.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFunctional Description\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e820-0431-02\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ereceives command signals from the Mark V control processor and translates them into electrically isolated relay contacts. These outputs are suitable for both control and protection duties where deterministic switching and electrical robustness are required.\u003c\/p\u003e\n\u003cp\u003eRelay configurations typically include a mix of Form-A (normally open) and Form-C (changeover) contacts, allowing flexible integration with legacy and modern turbine auxiliaries.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eBoard Type: Relay Output PCB Card\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eModel:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e820-0431-02\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eControl Platform Compatibility: GE Mark V, GE Energy Control System\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOutput Type: Electromechanical relays\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eContact Forms: Form-A and Form-C (configuration dependent)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNumber of Outputs: Multiple channels for control and protection logic\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eControl Logic: Onboard microcontroller-based logic handling relay actuation and status monitoring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eField Connections:\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e34-pin connector for primary I\/O\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e12-pin connector for auxiliary and control interfacing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003e\n\u003cp\u003eIsolation: Electrical isolation between logic and field wiring via relay contacts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDiagnostics:\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eRelay status feedback\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInternal self-test and fault detection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003e\n\u003cp\u003ePower Supply: Sourced from system backplane\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMechanical Format: Plug-in PCB module\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDimensions: 380 × 200 × 100 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWeight: 1 kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSystem Integration and Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eGE 820-0431-02\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis intended exclusively for installation in Mark V or ECS racks. It interfaces directly with system backplanes and communicates with higher-level control logic without the need for external signal conditioning. The board is not designed for standalone operation and must be used within an approved GE control architecture.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTypical Applications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eGas turbine and steam turbine control systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGenerator and transformer auxiliary control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTrip, alarm, and interlock output circuits\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBalance-of-plant equipment switching\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProtection and annunciation relay logic\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eReliability and Maintenance Considerations\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe relay-based design provides inherent electrical isolation and tolerance to transient conditions commonly found in turbine environments. Modular construction allows the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e820-0431-02\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto be replaced independently, minimizing outage duration during maintenance activities. Proper connector seating and verified field wiring are essential to ensure correct output operation.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this board be used outside a Mark V system?\u003c\/strong\u003e\u003cbr\u003eA: No. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e820-0431-02\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003erelies on Mark V or ECS backplane power, logic, and communication and is not suitable for standalone use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Are all relay outputs the same contact type?\u003c\/strong\u003e\u003cbr\u003eA: No. The board typically includes a combination of Form-A and Form-C relays, depending on the specific configuration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the board hot-swappable?\u003c\/strong\u003e\u003cbr\u003eA: Replacement should only be performed according to GE maintenance procedures, usually with the system in a safe state or powered down.\u003c\/p\u003e","brand":"GE Fanuc","offers":[{"title":"Default Title","offer_id":42782492000346,"sku":"820-0431-02","price":175.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/820-0418031.jpg?v=1768546669","url":"https:\/\/www.plcmasters.com\/ar\/products\/ge-820-0431-02-relay-output-pcb-card","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}