{"product_id":"abb-uad142a01-3bhe012551r0001-unitrol-excitation-control-board","title":"ABB UAD142A01 3BHE012551R0001 UNITROL Excitation Control Board","description":"\u003cp style=\"font-size: 14px; color: #2d3748; line-height: 1.6; margin-top: 0; margin-bottom: 20px;\"\u003e\n  The ABB 3BHE012551R0001 UAD142A01 is a high-integrity hardware component developed specifically for the \u003cstrong\u003eUNITROL excitation and control system\u003c\/strong\u003e series. This module operates as a dedicated \u003cstrong\u003eexcitation control board\u003c\/strong\u003e, regulating the critical field current and rotor voltages required for the deterministic stability of synchronous generators and large industrial motors. Identified by the manufacturing part number \u003cstrong\u003e3BHE012551R0001\u003c\/strong\u003e and module designation \u003cstrong\u003eUAD142A01\u003c\/strong\u003e, the board features precise signal-conditioning topologies, surface-mount status diagnostics, and ruggedized ribbon-cable bus connections. Engineered to handle rapid transient spikes across heavy industrial power grids, its localized circuit layout isolates delicate digital logic processors from high-power field disturbances, maintaining continuous loop synchronization and preventing systemic generation downtime.\n\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; font-size: 18px; border-bottom: 2px solid #e2e8f0; padding-bottom: 5px; margin-top: 25px; margin-bottom: 15px;\"\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"margin-bottom: 20px; padding-left: 20px; list-style-type: square; font-size: 14px; color: #2d3748; line-height: 1.6;\"\u003e\n  \u003cli style=\"margin-bottom: 8px;\"\u003ePurpose-built control architecture designed to integrate into UNITROL automatic voltage regulator (AVR) chassis assemblies.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 8px;\"\u003eMulti-point ribbon header connectors implementing low-impedance links for deterministic processing speeds.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 8px;\"\u003eSurface-mount LED indicators providing real-time hardware status verification and fault diagnosis.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 8px;\"\u003eShielded multi-layer printed circuit board design providing enhanced noise rejection on dense electromagnetic plant floors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; font-size: 18px; border-bottom: 2px solid #e2e8f0; padding-bottom: 5px; margin-top: 25px; margin-bottom: 15px;\"\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"margin-bottom: 20px; padding-left: 20px; list-style-type: square; font-size: 14px; color: #2d3748; line-height: 1.6;\"\u003e\n  \u003cli style=\"margin-bottom: 8px;\"\u003eAutomatic voltage regulation and generator field excitation loops in power generation utilities.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 8px;\"\u003eSynchronous motor control systems deployed in oil, gas, and heavy mining infrastructure.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 8px;\"\u003eStatic excitation systems requiring isolated analog-to-digital signal conditioning paths.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; font-size: 18px; border-bottom: 2px solid #e2e8f0; padding-bottom: 5px; margin-top: 25px; margin-bottom: 15px;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 25px;\"\u003e\n  \u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px; text-align: left;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"background-color: #f7fafc; border-bottom: 2px solid #cbd5e0;\"\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold; color: #1a365d; border: 1px solid #e2e8f0; width: 40%;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold; color: #1a365d; border: 1px solid #e2e8f0; width: 60%;\"\u003eSpecification\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003eABB\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background-color: #fcfcfc; border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003eUAD142A01\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eProduct ID \/ Catalog Code\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e3BHE012551R0001\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background-color: #fcfcfc; border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eSystem Compatibility\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003eUNITROL Control and Excitation Systems\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eComponent Classification\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003eExcitation Control \/ Interface Board\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background-color: #fcfcfc; border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eCountry of Origin\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003eSwitzerland\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e0.55 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background-color: #fcfcfc; border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003ePackage Dimensions (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e255 mm x 195 mm x 40 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"color: #1a365d; font-size: 18px; border-bottom: 2px solid #e2e8f0; padding-bottom: 5px; margin-top: 25px; margin-bottom: 15px;\"\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; color: #2d3748; margin-bottom: 20px; line-height: 1.6;\"\u003e\n  To prevent loop failure or immediate terminal degradation of the processing components during replacement cycles, execute mounting sequences in strict compliance with plant safety procedures.\n\u003c\/p\u003e\n\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #e53e3e; padding: 12px 15px; margin-bottom: 20px; border-radius: 0 4px 4px 0;\"\u003e\n  \u003cdiv style=\"color: #c53030; font-weight: bold; margin-bottom: 5px; font-size: 13px; letter-spacing: 0.5px;\"\u003e\n    CRITICAL WARNING: LETHAL VOLTAGE RETAINED\n  \u003c\/div\u003e\n  \u003cdiv style=\"font-size: 13px; color: #742a2a; line-height: 1.5;\"\u003e\n    Isolate all incoming high-voltage feeds and auxiliary power buses before uncovering the module rack enclosure. Excitation systems retain massive capacitive field storage charges; handling modules on an ungrounded or live chassis can spark catastrophic arc flash, component disintegration, and severe injury.\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 20px 0;\"\u003e\n  \u003cdiv style=\"position: relative; padding-left: 35px; margin-bottom: 15px;\"\u003e\n    \u003cdiv style=\"position: absolute; left: 0; top: 2px; background-color: #2b6cb0; color: #ffffff; width: 22px; height: 22px; border-radius: 50%; text-align: center; font-size: 12px; font-weight: bold; line-height: 22px;\"\u003e1\u003c\/div\u003e\n    \u003cdiv style=\"font-size: 14px; line-height: 1.5;\"\u003e\n      \u003cdiv style=\"font-weight: bold; color: #1a365d; margin-bottom: 3px;\"\u003eEnforce absolute system lockout\/tagout\u003c\/div\u003e\n      \u003cdiv style=\"color: #2d3748; font-size: 13px;\"\u003eOpen main breakers, tag out auxiliary power controls, and use a calibrated voltmeter to ensure zero active energy remains in the excitation field circuits.\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"position: relative; padding-left: 35px; margin-bottom: 15px;\"\u003e\n    \u003cdiv style=\"position: absolute; left: 0; top: 2px; background-color: #2b6cb0; color: #ffffff; width: 22px; height: 22px; border-radius: 50%; text-align: center; font-size: 12px; font-weight: bold; line-height: 22px;\"\u003e2\u003c\/div\u003e\n    \u003cdiv style=\"font-size: 14px; line-height: 1.5;\"\u003e\n      \u003cdiv style=\"font-weight: bold; color: #1a365d; margin-bottom: 3px;\"\u003eApply electrostatic discharge safeguards\u003c\/div\u003e\n      \u003cdiv style=\"color: #2d3748; font-size: 13px;\"\u003eSecurely wear an approved electrostatic discharge wrist strap linked to a verified structural earth ground prior to opening the anti-static protective shipping container.\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"position: relative; padding-left: 35px; margin-bottom: 15px;\"\u003e\n    \u003cdiv style=\"position: absolute; left: 0; top: 2px; background-color: #2b6cb0; color: #ffffff; width: 22px; height: 22px; border-radius: 50%; text-align: center; font-size: 12px; font-weight: bold; line-height: 22px;\"\u003e3\u003c\/div\u003e\n    \u003cdiv style=\"font-size: 14px; line-height: 1.5;\"\u003e\n      \u003cdiv style=\"font-weight: bold; color: #1a365d; margin-bottom: 3px;\"\u003eAlign, seat, and latch ribbon cable headers\u003c\/div\u003e\n      \u003cdiv style=\"color: #2d3748; font-size: 13px;\"\u003eAlign the polarization slots of the system bus cables with the module header pins, press down evenly until firmly seated, and lock the integrated mechanical retention ears.\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":52668498510187,"sku":"3BHE012551R0001","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/abb-uad142a01-3bhe012551r0001-excitation-control-board-phxvxabzgog_d2382651-eb65-4eac-b2a0-c1c3d2d946a9.jpg?v=1765532489","url":"https:\/\/www.plcprotech.com\/products\/abb-uad142a01-3bhe012551r0001-unitrol-excitation-control-board","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}