{"product_id":"sr2a201bd-schneider-electric-zelio-logic-compact-smart-relay-controller","title":"SR2A201BD Schneider Electric Zelio Logic Compact Smart Relay Controller","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview \u0026amp; Configuration Breakdown\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #1d4ed8; font-weight: bold;\"\u003eSR2A201BD\u003c\/span\u003e \u003cspan style=\"color: #1d4ed8; font-weight: bold;\"\u003eSchneider Electric\u003c\/span\u003e \u003cspan style=\"color: #1d4ed8; font-weight: bold;\"\u003eZelio Logic\u003c\/span\u003e \u003cspan style=\"color: #1d4ed8; font-weight: bold;\"\u003eCompact Smart Relay\u003c\/span\u003e provides reliable logic control for small automation tasks. Control engineers rely on this compact programmable controller for standalone machine management and sequential timing logic.\u003c\/p\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eArchitectural Parameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eTechnical Specification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series \u0026amp; Type\u003c\/td\u003e\n\u003ctd\u003eZelio Logic Compact Smart Relay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number Model\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"color: #1d4ed8; font-weight: bold;\"\u003eSR2A201BD\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Supply Voltage\u003c\/td\u003e\n\u003ctd\u003e24 V DC (limits: 19.2 to 30 V DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiscrete Inputs\u003c\/td\u003e\n\u003ctd\u003e12 inputs (Type 1 resistive, 24 V DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalogue Inputs\u003c\/td\u003e\n\u003ctd\u003e2 inputs (0-24 V \/ 0-10 V, 8-bit resolution)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Outputs\u003c\/td\u003e\n\u003ctd\u003e8 relay outputs (8 A thermal current limit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocal Display \u0026amp; Real-Time Clock\u003c\/td\u003e\n\u003ctd\u003eEquipped with local LCD display; built-in clock without real-time clock card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eCore Technical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eOperational Metric\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003ePerformance Value\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgramming Capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 240 control scheme lines using Ladder logic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle \u0026amp; Conversion Time\u003c\/td\u003e\n\u003ctd\u003e6 to 90 ms normal cycle time\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackup \u0026amp; Data Retention\u003c\/td\u003e\n\u003ctd\u003e10 years backup time at 25 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Connections\u003c\/td\u003e\n\u003ctd\u003eScrew terminals (0.2 to 2.5 mm² \/ AWG 25 to 14) with 0.5 N.m tightening torque\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Protection\u003c\/td\u003e\n\u003ctd\u003eIP20 on terminal blocks, IP40 on front control panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-20 °C to 55 °C operating span\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; Mechanical Guidelines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMount securely onto a standard 35 mm DIN rail or utilize retractable screw fixing lugs.\u003c\/li\u003e\n\u003cli\u003eEnsure supply voltage stays within the strict 19.2 to 30 V DC range to prevent logic resets.\u003c\/li\u003e\n\u003cli\u003eVerify terminal screw tightening torque remains at 0.5 N.m to secure solid or flexible wire strands.\u003c\/li\u003e\n\u003cli\u003eKeep analogue input cable runs under 10 meters using screened cable to minimize interference.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eEquipment Compatibility \u0026amp; Selection Guide\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eDeploying smart relays effectively depends on matching input type and power supply requirements to your machine architecture:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSensor Compatibility: Discrete inputs interface seamlessly with 3-wire PNP proximity sensors.\u003c\/li\u003e\n\u003cli\u003eSelection Tip: Choose the \u003cspan style=\"color: #1d4ed8; font-weight: bold;\"\u003eSR2A201BD\u003c\/span\u003e model when your application requires 24 V DC power with integrated local display and 12 discrete plus 2 analogue inputs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTypical Applications \u0026amp; Diagnostic Capabilities\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAutomates small industrial packaging machines, HVAC control panels, and conveyor sorting systems.\u003c\/li\u003e\n\u003cli\u003eMonitors process thresholds using 8-bit analogue inputs connected to pressure or temperature transducers.\u003c\/li\u003e\n\u003cli\u003eProvides real-time diagnostic checks on program memory automatically upon every device power-up.\u003c\/li\u003e\n\u003cli\u003ePerforms reliably in harsh electrical environments complying with strict IEC 61000 EMC immunity standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eGlobal PLC Spare HUB Insight\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAutomation technicians frequently encounter intermittent logic faults when power supply ripple exceeds DC voltage boundaries. Our engineering team recommends installing a dedicated 1 A quick-blow fuse on the 24 V DC supply line to protect internal components. Utilizing shielded cable for analogue inputs also prevents electromagnetic noise from distorting 0-10V sensor readings in heavy motor control panels.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCompliance, Warranty \u0026amp; Logistics\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCertifications: GOST, CSA, GL, and UL product approvals.\u003c\/li\u003e\n\u003cli\u003eQuality Warranty: Backed by a standard 12-month industrial replacement warranty.\u003c\/li\u003e\n\u003cli\u003eFulfillment Logistics: Rapid 24-48 hour global dispatch via FedEx, UPS, and DHL.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eProfessional Frequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the primary purpose of the 2 analogue inputs on the \u003cspan style=\"color: #1d4ed8; font-weight: bold;\"\u003eSR2A201BD\u003c\/span\u003e smart relay?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: They accept 0-10V or 0-24V signals to process variable control parameters like fluid levels or tank pressures without requiring external analog expansion modules.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does the controller retain user programs during a complete power failure?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: An internal backup capacitor and memory system maintain user logic and parameters for up to 10 years at 25 °C.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I connect 3-wire PNP inductive proximity sensors directly to the discrete inputs?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes, inputs I1 through IR are fully compatible with 3-wire PNP proximity sensors operating on a 24 V DC supply.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What maintenance steps help prevent premature relay output contact degradation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Always install protective freewheeling diodes across inductive DC loads or RC snubbers across AC loads to suppress electrical arcing during switching.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I verify program memory health during routine system commissioning?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The Zelio Logic controller automatically executes a comprehensive program memory integrity check every time the unit powers up.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/SR2A201BD.png?v=1789457353\" alt=\"\"\u003e\u003c\/p\u003e","brand":"Schneider Electric","offers":[{"title":"Default Title","offer_id":45448927576246,"sku":"SR2A201BD","price":106.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/SR2A201BD-1.jpg?v=1789457369","url":"https:\/\/www.plcsparehub.com\/products\/sr2a201bd-schneider-electric-zelio-logic-compact-smart-relay-controller","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}