{"product_id":"51309288-375-tk-prr021-honeywell-redundancy-module","title":"51309288-375 TK-PRR021 Honeywell Redundancy Module","description":"\u003cp\u003eThe \u003cstrong\u003eHoneywell 51309288-375\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eTK-PRR021\u003c\/strong\u003e Redundancy Module, operates as a dedicated hardware component for fault-tolerant bus power routing and primary-to-backup controller switching within Honeywell Experion PKS platforms.\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\u003e51309288-375\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Model\u003c\/td\u003e\n\u003ctd\u003eTK-PRR021\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eRedundancy Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.431 kg (0.95 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e3.0 cm x 31.3 cm x 27.8 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 deg C to +85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Consumption\u003c\/td\u003e\n\u003ctd\u003e90 mA at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3 VDC, 5.1 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current\u003c\/td\u003e\n\u003ctd\u003e7 mA at 3.3 VDC, 1.0 A at 5.1 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel-to-Channel Isolation and Fault-Tolerant Bus Routing\u003c\/h3\u003e\n\u003cp\u003eThe 51309288-375 module isolates duplicate power supply rails to maintain dual-bus integrity across high-density I\/O chassis. Integrated switching circuitry provides regulated 3.3 VDC and 5.1 VDC outputs directly to the backplane, decoupling primary and secondary controller nodes. This design enforces strict channel-to-channel isolation to prevent electrical fault propagation, permitting uninterrupted 4-20 mA HART loop protocol communications and real-time field data processing during hot-standby failover events.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What power output rails does the 51309288-375 supply to the backplane chassis?\u003c\/p\u003e\n\u003cp\u003eA: The module supplies dual regulated DC outputs consisting of 3.3 VDC rated at 7 mA and 5.1 VDC rated at 1.0 A derived from an incoming 24 VDC feed.\u003c\/p\u003e\n\u003cp\u003eQ: Is the TK-PRR021 module hot-swappable during system operation?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the unit can be inserted or removed under power in a redundant rack configuration provided the redundant power path is healthy and fully energized.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eESD Protection:\u003c\/strong\u003e Always wear a grounded wrist strap before handling the module to prevent electrostatic discharge damage to internal components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Alignment:\u003c\/strong\u003e Align the module card edges with the chassis guide rails and push firmly until the rear backplane connectors are fully engaged.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Management:\u003c\/strong\u003e Ensure vertical chassis clearance is maintained to support natural convection cooling across the operating range of -40 deg C to +85 deg C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Conductor Separation:\u003c\/strong\u003e Route external 24 VDC supply cables away from low-level signal lines within the enclosure to minimize electromagnetic interference.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":53583605137717,"sku":"TK-PRR021 51309288-375","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/51309288-375_Cocoai.png?v=1789451747","url":"https:\/\/www.5gplc.com\/products\/51309288-375-tk-prr021-honeywell-redundancy-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}