{"product_id":"1606-xlsred-allen-bradley-xls-redundancy-module-24v-dc-backup","title":"1606-XLSRED Allen-Bradley XLS Redundancy Module 24V DC Backup","description":"\n\u003ch3\u003e\u003cstrong\u003e1606-XLSRED | Redundant DC Power Distribution Module\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #008000;\"\u003eAllen-Bradley 1606-XLSRED\u003c\/span\u003e\u003c\/strong\u003e is a redundancy module in the 1606-XLS power system family. It isolates two DC power supply inputs and combines them into one output for supported industrial loads.\u003c\/p\u003e\n\u003cp\u003eEngineers can use this module in 1+1 or N+1 power architectures. If one supply fails, the remaining supply can continue powering the load, provided it has sufficient capacity and the system is correctly designed.\u003c\/p\u003e\n\u003cp\u003eUnlike a monitored redundancy controller, the 1606-XLSRED uses diode-based input isolation and does not provide built-in circuit monitoring. Use external power supply status contacts or control-system monitoring when fault annunciation is required.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003e01 | Functional Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eDesign Element\u003c\/th\u003e\n\u003cth\u003eEngineering Description\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalog Number\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e1606-XLSRED\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley \/ Rockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Family\u003c\/td\u003e\n\u003ctd\u003e1606-XLS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComponent Type\u003c\/td\u003e\n\u003ctd\u003eDC redundancy module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e2 isolated DC power supply inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Channels\u003c\/td\u003e\n\u003ctd\u003e1 DC load output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRedundancy Architectures\u003c\/td\u003e\n\u003ctd\u003e1+1 or N+1, subject to system design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Isolation\u003c\/td\u003e\n\u003ctd\u003eDiode-based isolation, according to the supplied description\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuilt-in Circuit Monitoring\u003c\/td\u003e\n\u003ctd\u003eNot provided, according to the supplied description\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApproximately 0.51 kg (1.13 lb), as supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e\u003cstrong\u003e02 | Electrical Ratings and Verification Points\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe supplied product data contains conflicting electrical ratings. The table below separates the stated redundancy-module values from details that require confirmation before installation or procurement.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSupplied Information\u003c\/th\u003e\n\u003cth\u003eEngineering Note\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal System Voltage\u003c\/td\u003e\n\u003ctd\u003e24 V DC system\u003c\/td\u003e\n\u003ctd\u003eConfirm the actual supply voltage and operating limits.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e24–28 V DC in the redundancy description; 24–60 V DC elsewhere\u003c\/td\u003e\n\u003ctd\u003eConflict: verify the official 1606-XLSRED datasheet before applying power.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current\u003c\/td\u003e\n\u003ctd\u003eUp to 10 A per input\u003c\/td\u003e\n\u003ctd\u003eConfirm the rating for each input and the permitted operating conditions.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current\u003c\/td\u003e\n\u003ctd\u003eUp to 20 A nominal\u003c\/td\u003e\n\u003ctd\u003eVerify the continuous output rating and thermal derating requirements.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power\u003c\/td\u003e\n\u003ctd\u003e480 W listed in the supplied data\u003c\/td\u003e\n\u003ctd\u003eDo not treat this as a confirmed independent power rating until verified.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection Type\u003c\/td\u003e\n\u003ctd\u003eScrew terminals\u003c\/td\u003e\n\u003ctd\u003eFollow the manufacturer's wiring and torque specifications.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC-OK Signal\u003c\/td\u003e\n\u003ctd\u003eListed in one specification section\u003c\/td\u003e\n\u003ctd\u003eConflicts with the description stating no built-in monitoring. Confirm terminal functions before wiring.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +70°C in the supplied description\u003c\/td\u003e\n\u003ctd\u003eVerify ambient limits, mounting clearances, and derating conditions.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Rating\u003c\/td\u003e\n\u003ctd\u003eIP20, Class III stated in the supplied data\u003c\/td\u003e\n\u003ctd\u003eConfirm the applicable protection and installation requirements in official documentation.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e\u003cstrong\u003e03 | How Redundant Power Distribution Works\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe module separates the two supply paths to reduce the chance that a fault on one input will pull down the other input. Both supplies feed a common load through the module's isolation arrangement.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNormal operation:\u003c\/strong\u003e Both supplies are available, and the load receives power through the redundant distribution arrangement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupply failure:\u003c\/strong\u003e The isolation path helps prevent a failed supply from dragging down the healthy supply. The remaining source must support the full load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower supply replacement:\u003c\/strong\u003e A properly designed system can help maintain load power while one supply is serviced, but only if the circuit and maintenance procedure permit it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFault indication:\u003c\/strong\u003e The module itself should not be assumed to report input failures. Use compatible supply status contacts or external monitoring where required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRedundancy does not automatically guarantee uninterrupted operation. Engineers must verify load current, supply capacity, wiring protection, voltage drop, and the behavior of connected equipment during a source failure.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003e04 | Typical Equipment and Industrial Applications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication Area\u003c\/th\u003e\n\u003cth\u003eTypical Loads\u003c\/th\u003e\n\u003cth\u003eEngineering Consideration\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePLC Control Cabinets\u003c\/td\u003e\n\u003ctd\u003eControllers, communication modules, and supported 24 V DC devices\u003c\/td\u003e\n\u003ctd\u003eConfirm the combined load and each supply's ability to carry it alone.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDistributed I\/O Stations\u003c\/td\u003e\n\u003ctd\u003eRemote I\/O adapters and compatible field-side power distribution\u003c\/td\u003e\n\u003ctd\u003eCheck voltage limits at the load and module-specific power requirements.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndustrial Ethernet Cabinets\u003c\/td\u003e\n\u003ctd\u003eNetwork switches and communication equipment rated for the supply voltage\u003c\/td\u003e\n\u003ctd\u003eReview startup current and the effect of supply loss on network availability.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcess Automation Panels\u003c\/td\u003e\n\u003ctd\u003eControl-system accessories and low-voltage instrumentation power circuits\u003c\/td\u003e\n\u003ctd\u003eConfirm that the load's power requirements match the approved circuit design.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMachine Control Systems\u003c\/td\u003e\n\u003ctd\u003eControl relays, interface devices, and compatible DC loads\u003c\/td\u003e\n\u003ctd\u003eAccount for inrush current and inductive-load behavior where applicable.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe 1606-XLSRED is a power-distribution accessory, not a PLC processor or a standalone AC\/DC power supply. It requires suitable external DC power supplies.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003e05 | Field Diagnostics and Maintenance Workflow\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eBecause the supplied description identifies no built-in monitoring circuit, troubleshooting should combine electrical measurements with external supply status information. Always follow site electrical safety procedures.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck both sources:\u003c\/strong\u003e Measure each supply's DC output independently and compare readings with the manufacturer's permitted range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck the common output:\u003c\/strong\u003e Measure the voltage at the module output and at the load. A difference may indicate cable resistance, a poor connection, or excessive load current.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimulate a source failure only under an approved test plan:\u003c\/strong\u003e Verify that the remaining supply can support the load. Do not disconnect a live source without confirming the procedure and system risks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInspect terminal connections:\u003c\/strong\u003e Look for loose conductors, discoloration, damaged insulation, or signs of excessive heating. Re-torque only to the specified value.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReview external alarms:\u003c\/strong\u003e Check the power supplies' status contacts and PLC alarm logic. Do not assume that a fault on the redundancy module generates a diagnostic signal.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eIf the output voltage drops when one supply is unavailable, investigate the remaining supply's capacity, input voltage, wiring resistance, protective devices, and load startup demand before replacing the module.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003e06 | Engineering Selection Checklist\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage match:\u003c\/strong\u003e Confirm that the supply output and the module's approved input range match the system design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-source capacity:\u003c\/strong\u003e For a 1+1 design, verify that either supply can support the full required load under the applicable derating conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent distribution:\u003c\/strong\u003e For N+1 arrangements, calculate the load and source capacity for the intended failure condition. Do not assume equal current sharing unless the system design supports it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFault annunciation:\u003c\/strong\u003e Add external monitoring if the control system must identify a failed supply automatically.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection coordination:\u003c\/strong\u003e Check upstream protective devices, conductor sizing, terminal ratings, and fault-current requirements against the official documentation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation environment:\u003c\/strong\u003e Verify ambient temperature, ventilation, enclosure conditions, and mounting clearances.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003e07 | Global PLC Spare HUB's Insight\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eIn a redundant control cabinet, the most important design check is whether the remaining power source can carry the entire critical load after a supply failure. A redundancy module cannot compensate for undersized supplies.\u003c\/p\u003e\n\u003cp\u003eDuring commissioning, record both input voltages and the common output voltage under normal load. If the project permits a controlled failure test, verify the load response and external alarm behavior against the system's acceptance criteria.\u003c\/p\u003e\n\u003cp\u003eFor replacement planning, compare the complete catalog number and terminal functions with the installed component. This step is especially important because the supplied information for \u003cstrong\u003e\u003cspan style=\"color: #008000;\"\u003e1606-XLSRED\u003c\/span\u003e\u003c\/strong\u003e contains conflicting input-voltage and monitoring details.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003e08 | Ordering, Warranty, and Shipping\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Allen-Bradley 1606-XLSRED redundancy module\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 12-month warranty, subject to the agreed sales terms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Methods:\u003c\/strong\u003e FedEx, UPS, or DHL, subject to destination and service availability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrder Processing:\u003c\/strong\u003e Target processing and dispatch within 24–48 hours after stock and order confirmation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuotation Support:\u003c\/strong\u003e Provide the catalog number, required quantity, and application voltage for a more accurate quotation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eContact Global PLC Spare HUB for pricing, replacement identification, and assistance checking compatibility with your DC power architecture.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003e09 | Frequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ1: What happens if one power supply has a lower output voltage than the other?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe actual current contribution depends on supply voltage, wiring resistance, and the module's isolation characteristics. Measure both sources under load and confirm their settings and operating ranges. Do not assume that both supplies share current equally.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ2: How should I size the two supplies for a 1+1 redundancy design?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCalculate the maximum continuous load, startup demand, and applicable derating. Each supply must independently support the required load after the other supply becomes unavailable. Check the redundancy module's current limits and the complete manufacturer's design guidance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ3: Can this module replace a redundancy unit that provides individual supply alarms?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNot necessarily. The supplied description states that the 1606-XLSRED has no built-in circuit monitoring. If individual source-failure alarms are required, confirm the actual signal features and consider compatible power supply contacts or external monitoring equipment.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ4: Why might a control cabinet lose power even though one supply remains healthy?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePossible causes include insufficient capacity in the remaining supply, an incorrect voltage setting, a tripped protective device, a loose connection, excessive startup demand, or incorrect wiring. Check the output under the approved test procedure before identifying the failed component.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ5: Which specifications should I verify before purchasing a replacement?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eConfirm the full catalog number, DC input range, input and output current limits, terminal arrangement, monitoring functions, temperature rating, and mounting requirements. The supplied data conflicts on several electrical details, so use the official datasheet for final approval.\u003c\/p\u003e\n","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":67651675750582,"sku":"1606-XLSRED","price":145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/1606-XLSRED_2.jpg?v=1792129394","url":"https:\/\/www.plcsparehub.com\/products\/1606-xlsred-allen-bradley-xls-redundancy-module-24v-dc-backup","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}