{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SR3B102BD","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"SR3B102BD","canonicalUrl":"https://aoctrl.com/schneider/SR3B102BD","factsUrl":"https://aoctrl.com/api/mcp/products/SR3B102BD","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Zelio Logic smart relay, SR3B102BD, with 6 discrete inputs 24V DC, 4 analog inputs (0-10V/0-24V), 4 transistor outputs 24V DC 0.5...0.625 A, integrated clock, program memory check on each power-up.","salesMarkdown":"## Integrator's note – I/O map and supply limits The SR3B102BD is a Zelio Logic smart relay with six discrete inputs (IEC 61131-2 Type 1, 24 V DC, 4 mA sink), four analog inputs (0–10 V or 0–24 V common-mode, 12 kΩ impedance), and four transistor outputs rated 24 V DC / 0.5–0.625 A each. Supply voltage range is 19.2–30 V DC; the module draws 50 mA without extension, up to 160 mA with expansions. The on-board clock and automatic program memory check on every power-up are enabled by default — no battery required for time-stamped logic, though a backup of 10 years at 25 °C keeps the clock running through extended power loss. ## Mounting & field connection DIN-rail mount, torque terminal screws to 0.5 N·m. Discrete inputs accept 3-wire PNP proximity sensors; analog inputs operate over a 10 m screened cable distance between stations. Transistor outputs include overload and overvoltage protection. Cycle time ranges 6–90 ms depending on program complexity. Counting frequency on discrete inputs is 1 kHz.","metaTitle":"Schneider Zelio Logic SR3B102BD Smart Relay, 6 DI/4 AI/4 TO","metaDescription":"Active production. Schneider Zelio Logic SR3B102BD smart relay: 6 discrete inputs, 4 analog inputs (0-10V/0-24V), 4 transistor outputs 24V 0.5A. IEC 61000-4 level 3. Sourced to ord","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":[],"specifications":{"Clock":"With","Checks":"Program memory on each power up","Category":"US1000I22000","LSB value":"39 mV analogue input circuit","Standards":"IEC 60068-2-27 Ea IEC 60068-2-6 Fc IEC 61000-4-6 level 3 IEC 61000-4-4 level 3 IEC 61000-4-2 level 3 IEC 61000-4-12 IEC 61000-4-11 IEC 61000-4-3 IEC 61000-4-5","Cycle time":"6...90 ms","Backup time":"10 years 77 °F (25 °C)","Clock drift":"12 min/year 32...131 °F (0...55 °C) 6 s/month 77 °F (25 °C)","Load current":"0.5...0.625 A transistor output","Local display":"With","Response time":"<= 1 ms from state 1 to state 0)transistor output","Output voltage":"24 V transistor output","Conversion time":"Smart relay cycle time analogue input circuit","Input impedance":"12 kOhm IB...IG used as analogue input circuit 12 kOhm IB...IG used as discrete input circuit 7.4 kOhm I1...IA and IH...IR discrete input circuit","Repeat accuracy":"+/- 2 % 131 °F (55 °C) analogue input circuit","lifecycle_stage":"current","Conversion error":"+/- 5 % 77 °F (25 °C) analogue input circuit +/- 6.2 % 131 °F (55 °C) analogue input circuit","Pollution degree":"2 IEC 61131-2","Range of Product":"Zelio Logic","Number of Outputs":"4 transistor","Relative Humidity":"95 % without condensation or dripping water","Tightening Torque":"4.4 lbf.in (0.5 N.m)","Counting frequency":"1 kHz discrete input","Operating altitude":"6561.68 ft (2000 m)","Operating distance":"10 m between stations, with screened cable (sensor not isolated) analogue input circuit","Analogue Input Type":"Common mode","Discrete input type":"Resistive","Input compatibility":"3-wire proximity sensors PNP discrete input","Overload protection":"With transistor output","Analogue input range":"0...10 V 0...24 V","Overvoltage category":"III conforming to IEC 60664-1","Analogue input number":"4","Discrete input number":"6 IEC 61131-2 Type 1","Nbr. of units in pkg.":"1","Output voltage limits":"19.2...30 V DC transistor output)","Supply voltage limits":"19.2...30 V","Discrete input current":"4 mA","Discrete input voltage":"24 V DC","Maximum supply current":"160 mA with extensions) 50 mA without extension)","Overvoltage protection":"With transistor output","Power dissipation in W":"4 W without extension 8 W with extensions","Temperature probe type":"NTC 10k 77 °F (25 °C) NTC 1000k 77 °F (25 °C) KTY81 210/220/221/222/250 Pt 500","Connections - terminals":"Screw terminals, 1 x 0.2...1 x 2.5 mm² AWG 25...AWG 14) semi-solid Screw terminals, 1 x 0.2...1 x 2.5 mm² AWG 25...AWG 14) solid Screw terminals, 1 x 0.25...1 x 2.5 mm² AWG 24...AWG 14) flexible with cable end Screw terminals, 2 x 0.2...2 x 1.5 mm² AWG 24...AWG 16) solid Screw terminals, 2 x 0.25...2 x 0.75 mm² AWG 24...AWG 18) flexible with cable end","IP degree of protection":"IP20 IEC 60529 terminal block) IP40 IEC 60529 front panel)","Immunity to microbreaks":"1 ms","[Ures] residual voltage":"2 V at state 1 transistor output","Short-circuit protection":"With transistor output","Analogue input resolution":"8 bits","Product or Component Type":"Modular smart relay","[Us] rated supply voltage":"24 V","Current state 0 guaranteed":"<= 0.75 mA I1...IA and IH...IR discrete input circuit)","Maximum altitude transport":"10000 ft (3048 m)","Voltage state 0 guaranteed":"= 1.2 mA IB...IG used as discrete input circuit) >= 2.2 mA I1...IA and IH...IR discrete input circuit)","Voltage state 1 guaranteed":">= 15 V I1...IA and IH...IR discrete input circuit >= 15 V IB...IG used as discrete input circuit","Maximum permissible voltage":"30 V analogue input circuit","Reverse polarity protection":"With","Environmental characteristic":"EMC directive conforming to IEC 61000-6-2 EMC directive conforming to IEC 61000-6-3 EMC directive conforming to IEC 61000-6-4 EMC directive conforming to IEC 61131-2 zone B Low voltage directive conforming to IEC 61131-2","Disturbance radiated/conducted":"Class B EN 55022-11 group 1","Number or control scheme lines":"0...500 FBD 0...240 ladder","Ambient Air Temperature for Storage":"-40...158 °F (-40...70 °C)","Ambient air temperature for operation":"-4...104 °F (-20...40 °C) in non-ventilated enclosure IEC 60068-2-1 and IEC 60068-2-2 -4...131 °F (-20...55 °C) IEC 60068-2-1 and IEC 60068-2-2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$77.47","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2797a873cc17578a537ef823ee45bd55.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/SR3B102BD/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/SR3B102BD","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/schneider/SR3B102BD when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:21:01.794Z","lastPublished":"2026-09-02T08:21:01.794Z","indexable":true}}