{"product_id":"abb-reb500bu-1khl160006r0001h-bay-unit","title":"ABB REB500BU 1KHL160006R0001H Bay Unit","description":"\u003cp\u003eThe \u003cstrong\u003eABB REB500BU\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eREB500BU\u003c\/strong\u003e Bay Unit, operates as a dedicated hardware component for localized current signal acquisition and data processing within REB500 distributed busbar protection system platforms. This hardware unit captures analog current transformer vectors, isolator status inputs, and breaker position transitions directly at the bay interface layer. It converts these physical inputs into low-latency digital streams to drive decentralized differential protection algorithms and execute breaker failure logic before transmitting processed zone data to the central terminal.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\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\u003eREB500BU\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\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eSwitzerland\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.4 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e100 mm x 160 mm x 160 mm (W x H x D)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-25 deg C to +55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e24-250 V DC (configuration-dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1KHL160006R0001H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtocol Suite\u003c\/td\u003e\n\u003ctd\u003eIEC 61850-8-1 (GOOSE, MMS), PRP (IEC 62439-3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Input Matrix\u003c\/td\u003e\n\u003ctd\u003eCT inputs, isolator status, breaker position\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSynchronization\u003c\/td\u003e\n\u003ctd\u003eSNTP or PPS time synchronization\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompliance Base\u003c\/td\u003e\n\u003ctd\u003eIEC 60255 series standards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the REB500BU differentiate between internal busbar faults and through-fault current conditions?\u003c\/p\u003e\n\u003cp\u003eA: The module executes dedicated local differential protection algorithms combined with internal check zone logic. By analyzing the directional phase alignment and current vector sums from the bay CT inputs, it verifies if a fault sits inside the isolated bus zone prior to releasing its high-speed trip command.\u003c\/p\u003e\n\u003cp\u003eQ: What time synchronization methods are required to align data samples between multiple REB500BU bay units?\u003c\/p\u003e\n\u003cp\u003eA: The bay unit utilizes either a dedicated pulse-per-second (PPS) hardware input link or an Ethernet-distributed SNTP master clock source to synchronize internal sampling clocks within microsecond tolerances, preventing artificial differential errors.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":47583158632638,"sku":"REB500BU 1KHL160006R0001H","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/screenshot_2026-05-08_13-51-06_b17e0ef0-1a0c-4d48-ad8c-fb58695cd374.png?v=1779852135","url":"https:\/\/www.autooiltech.com\/products\/abb-reb500bu-1khl160006r0001h-bay-unit","provider":"AutoOilTech Limited","version":"1.0","type":"link"}