{"product_id":"abb-3bhb006338r0001-uns0881a-p-v1-excitation-logic-control-board","title":"ABB 3BHB006338R0001 UNS0881A-P,V1 Excitation Logic Control Board","description":"\u003ch3\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003cstrong\u003eUNS0881A‑P,V1 (3BHB006338R0001)\u003c\/strong\u003e excitation logic control board is a key component within ABB’s UNITROL excitation systems, designed to manage logic functions associated with generator excitation and protection. Its hardware architecture supports stable operation in demanding electrical environments where precise control and fast response are essential.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eUNS0881A‑P,V1 (3BHB006338R0001)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eExcitation Logic Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003eUNITROL Excitation Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eLogic processing for excitation and protection circuits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e27 × 10 × 4 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.32 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003ePanel or rack‑mounted, depending on UNITROL configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e–20°C to +55°C (typical for UNITROL modules)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eInternal system interface (Ethernet router reference corrected; not applicable to this board)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003eConformal‑coated PCB, surge‑resistant circuitry\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eSweden\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHS Code\u003c\/td\u003e\n\u003ctd\u003e8537101190\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailability\u003c\/td\u003e\n\u003ctd\u003eIn stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eFunctional Description\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe UNS0881A‑P,V1 board provides logic‑level control and signal processing for excitation systems used in synchronous generators. It coordinates gate‑drive signals, interlock logic, and protection‑related functions to ensure stable excitation under varying load and grid conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts circuitry is optimized for fast switching, low propagation delay, and high noise immunity—critical characteristics in power generation environments. The board’s modular layout allows straightforward replacement and integration into existing UNITROL cabinets without system redesign.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDiagnostic indicators and onboard monitoring functions assist engineers in verifying logic states, identifying abnormal conditions, and performing maintenance with minimal downtime.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eApplication Scenarios\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eGenerator excitation control in power plants\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLogic processing for synchronous machine protection\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUpgrades or replacements in UNITROL excitation systems\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIntegration into DCS‑based excitation architectures\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHigh‑reliability applications requiring deterministic logic behavior\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSimilar Model Comparison\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eFunction\u003c\/th\u003e\n\u003cth\u003eTypical Use\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUNS0881A‑P,V1\u003c\/td\u003e\n\u003ctd\u003eExcitation logic control\u003c\/td\u003e\n\u003ctd\u003eLogic and gate‑drive coordination\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUNS0122A\u003c\/td\u003e\n\u003ctd\u003eMeasurement board\u003c\/td\u003e\n\u003ctd\u003eVoltage and current feedback acquisition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUNS0860A\u003c\/td\u003e\n\u003ctd\u003eControl board\u003c\/td\u003e\n\u003ctd\u003eExcitation regulation and control algorithms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQ: Is the UNS0881A‑P,V1 compatible with all UNITROL versions?\u003c\/strong\u003e  A: Compatibility depends on the specific UNITROL generation; it is commonly used in modern UNITROL 6000‑series systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQ: Does this board include Ethernet communication?\u003c\/strong\u003e  A: No. The board operates as an internal logic module and does not provide Ethernet routing functions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQ: Can it be replaced without shutting down the excitation system?\u003c\/strong\u003e  A: Most excitation logic boards require system shutdown for safe replacement; follow ABB service procedures.\u003c\/span\u003e\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":43224962760792,"sku":"3BHB006338R0001 UNS0881A-P,V1","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/abb-3bhb006338r0001-uns0881a-p-v1-excitation-logic-control-board-ifg5qmnd505.png?v=1758596459","url":"https:\/\/www.industriaxplc.com\/products\/abb-3bhb006338r0001-uns0881a-p-v1-excitation-logic-control-board","provider":"IndustriaX Limited","version":"1.0","type":"link"}