{"product_id":"honeywell-tc-prr021-redundancy-power-regulator-module","title":"Honeywell TC-PRR021 Redundancy Power Regulator Module","description":"\u003cp\u003eThe \u003cstrong\u003eHoneywell TC-PRR021\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e51309288-225\u003c\/strong\u003e Redundant Power Regulator Module, operates as a dedicated hardware component for dual-input power redundancy and 24 VDC bus stabilization within Honeywell Experion PKS and TDC 3000 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\u003eTC-PRR021\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\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e51309288-225\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\u003e1.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e180 x 100 x 25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-25 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eUniversal Input: 85-265 VAC; Output: 24 VDC Regulated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity Limits\u003c\/td\u003e\n\u003ctd\u003e5% to 95% Non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eHoneywell Experion PKS, TDC 3000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCircuit Protection\u003c\/td\u003e\n\u003ctd\u003eOverload, Short-circuit, and Thermal protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompliance Certifications\u003c\/td\u003e\n\u003ctd\u003eCE, UL, CSA Industrial Compliance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART Loop and Channel Isolation Features\u003c\/h3\u003e\n\u003cp\u003eThe TC-PRR021 integrates directly into Experion PKS backplane topologies to deliver continuous power bus isolation across industrial controller racks and I\/O channels. By maintaining strict voltage regulation under heavy system loads, the unit eliminates power-line ripple that could otherwise introduce noise onto sensitive 4-20 mA HART communication loops. Integrated protective diode networks enforce channel-to-channel power isolation, preventing a field side short circuit or field wiring fault from propagating to adjacent controller nodes or disturbing analog signal processing logic.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What is the transfer time behavior during a primary power source interruption?\u003c\/p\u003e\n\u003cp\u003eA: The switchover execution within the unit operates seamlessly. Output voltage stability is maintained across the dual-input diode switch circuitry without voltage dropouts, preventing controller resets or signal dropouts on downstream I\/O modules.\u003c\/p\u003e\n\u003cp\u003eQ: Does the unit support wide-range AC power distribution without external tap switches?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The internal power stage accepts an input range of 85 to 265 VAC, accommodating global line voltages without manual transformer reconfiguration or external jumper selection.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVerify that the chassis power rail is fully de-energized or operating under approved hot-swap procedures before inserting the module into the standard Honeywell power rack frame.\u003c\/li\u003e\n\u003cli\u003eEnsure positive mechanical seating of the module backplane connector into the rack receptacle to secure optimal electrical contact and low-resistance grounding paths.\u003c\/li\u003e\n\u003cli\u003eConnect primary and secondary power feeds from distinct, galvanically isolated power sources to achieve true fault-tolerant electrical redundancy.\u003c\/li\u003e\n\u003cli\u003eMaintain at least 50 mm of unobstructed vertical clearance above and below the module enclosure within the control cabinet to facilitate natural convection cooling and prevent localized thermal build-up.\u003c\/li\u003e\n\u003cli\u003eGround all field cable shields strictly at the designated cabinet single-point ground bar to mitigate common-mode noise propagation to the power backplane.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":52368296345896,"sku":"TC-PRR021 51309288-225","price":315.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0827\/6266\/2184\/files\/TC-MUX02151404391-125_05040759-691a-4d27-9bb4-8a27cedeaf76.png?v=1789110832","url":"https:\/\/www.powerdcs.com\/ar\/products\/honeywell-tc-prr021-redundancy-power-regulator-module","provider":"Power DCS Parts Limited","version":"1.0","type":"link"}