{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SH31401M12A1200","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"SH31401M12A1200","canonicalUrl":"https://aoctrl.com/schneider/SH31401M12A1200","factsUrl":"https://aoctrl.com/api/mcp/products/SH31401M12A1200","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric SH3 series servo motor, SH31401M12A1200, 1700 W continuous power, 1500 rpm at 400 V three-phase, 11 N.m nominal torque, absolute multiturn SinCos Hiperface encoder, IP65 motor, IP67 housing, without holding brake.","salesMarkdown":"## Supply-dependent speed and torque — sizing for the line voltage The SH31401M12A1200: This SH3 series servo motor delivers different nominal speeds depending on the supply: 375 rpm on 115 V single-phase, 750 rpm on 230 V single-phase, 1500 rpm on 400 V three-phase, and 1800 rpm on 480 V three-phase. The nominal torque shifts accordingly — 11 N.m at 115 V single-phase down to 10.4 N.m at 480 V three-phase. That means the motor's performance envelope is tied directly to the available line voltage; the three-phase 400 V or 480 V connection gives the highest usable speed range for a given load. Continuous power is rated 1700 W, with peak stall torque of 27 N.m across the 115-480 V three-phase range. The continuous stall torque sits at 11.1 N.m, drawn at 4 A continuous stall current — a useful figure for sizing the drive's continuous current rating when the motor holds position under load. ## Encoder choice and position feedback — no homing needed after power loss The absolute multiturn SinCos Hiperface encoder retains position through power cycles. On a multi-axis machine where each axis must know its absolute position at power-up, this eliminates the homing sequence — the drive reads the position directly from the encoder on boot. The SinCos analog track gives high-resolution interpolation for smooth low-speed control. Back EMF constant is 193 V/krpm at 20 °C. At 4000 rpm maximum mechanical speed, the back EMF reaches about 772 V — well above a typical 400 V DC bus. The drive must be able to handle this voltage rise, or the usable speed range is limited by the DC bus voltage ceiling. The torque constant of 2.78 N.m/A at 120 °C gives the hot-running torque-per-amp figure for drive current loop tuning. ## No holding brake — plan for external braking or drive-based holding This variant ships without a holding brake. For vertical-axis applications or any load that must hold position at power-off, an external brake must be added — either a separate brake resistor and holding brake on the motor shaft, or a drive with a holding function that uses the motor's own torque. The continuous stall torque of 11.1 N.m at 4 A gives the drive enough current headroom to hold the load electrically, but that requires the drive to remain powered. Natural convection cooling means no fan noise and no fan maintenance, but the motor's thermal capacity is limited by its surface area and mounting plate. The copper hot-spot temperature is rated 130 °C — the drive's thermal model must protect against winding overtemperature during sustained overloads. ## Mounting and environmental sealing — flange size and IP rating IP65 on the motor body and shaft bushing, IP67 on the housing — conforming to IEC 60034-5. This means the motor withstands washdown and temporary immersion, suitable for food-and-beverage lines or wet machining environments. The straight electrical connector must be mated with a matching IP-rated cable assembly to maintain the seal. ## Radial and axial load limits — bearing life planning Maximum radial force Fr is 1930 N at 1000 rpm, derating to 1530 N at 2000 rpm and 1340 N at 3000 rpm. Maximum axial force Fa is 300 N. These limits define the bearing service life under direct-coupled loads; belt drives or overhung pulleys must stay within these envelopes to avoid premature bearing failure.","metaTitle":"Schneider Electric SH31401M12A1200 Servo Motor, 1700 W","metaDescription":"Schneider Electric SH31401M12A1200 servo motor, 1700 W continuous power, 1500 rpm at 400 V three-phase. Absolute multiturn Hiperface encoder. IP65/IP67.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Servo Motors with Brake"],"specifications":{"Phase":"Three phase","Length":"8.6 in (217.5 mm)","Key width":"0.3 in (8 mm)","Shaft end":"Parallel key","Encoder type":"Absolute multiturn SinCos Hiperface","Shaft length":"2.0 in (50 mm)","Holding brake":"Without","Nominal speed":"375 rpm 115 V single phase 750 rpm 230 V single phase 1500 rpm 400 V three phase 1800 rpm 480 V three phase","Rotor inertia":"7.41 kg.cm²","Nominal torque":"97.4 lbf.in (11 N.m) 115 V single phase 96.92 lbf.in (10.95 N.m) 230 V single phase 93.8 lbf.in (10.6 N.m) 400 V three phase 92.05 lbf.in (10.4 N.m) 480 V three phase","Shaft diameter":"0.9 in (24 mm)","Torque constant":"2.78 N.m/A 248 °F (120 °C)","Type of cooling":"Natural convection","lifecycle_stage":"current","Continuous power":"1700 W","Mounting Support":"International standard flange","Sizing reference":"SH31401M","Back emf constant":"193 V/krpm 68 °F (20 °C)","Device short name":"SH3","Motor flange size":"5.5 in (140 mm)","Peak stall torque":"239.0 lbf.in (27 N.m) 115...480 V three phase","Stator inductance":"88.55 mH","Stator resistance":"5.3 Ohm","Maximum current Irms":"10.8 A","Nominal output power":"430 W 115 V single phase 860 W 230 V single phase 1670 W 400 V three phase 1960 W 480 V three phase","Centring collar depth":"0.1 in (3.5 mm)","Electrical Connection":"Straight connector","Electrical connection":"straight connector","Nbr. of units in pkg.":"1","Number of motor poles":"5","Maximum axial force Fa":"300 N","Temperature copper hot":"266 °F (130 °C)","Continuous stall torque":"98.2 lbf.in (11.1 N.m) 115...480 V three phase","IP degree of protection":"IP65 motor: conforming to IEC 60034-5 IP65 shaft bushing: conforming to IEC 60034-5 IP67 housing: conforming to IEC 60034-5","Maximum radial force Fr":"1930 N 1000 rpm 1530 N 2000 rpm 1340 N 3000 rpm","Mounting holes diameter":"0.4 in (11 mm)","Centring collar diameter":"5.1 in (130 mm)","Continuous stall current":"4 A","Maximum mechanical speed":"4000 rpm","Network number of phases":"3","Number of mounting holes":"4","Product or Component Type":"Servo motor","Speed feedback resolution":"128 periods","[Us] rated supply voltage":"115...480 V","Circle diameter of the mounting holes":"6.5 in (165 mm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a6b12ebf14bf103dd50fb020dc98c033.pdf","sourceUrl":"https://www.se.com/ca/en/product/SH31401M12A1200/sh3-servomotor-140mm-1-stack-high-torque-keyed-shaft-sincos-multiturn-128-no-brake-straight-ip65-67/","alternativesUrl":"https://aoctrl.com/api/mcp/products/SH31401M12A1200/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy SH31401M12A1200 and how do I get a price?","answer":"Available through independent distribution — submit an RFQ for current pricing and lead time. Availability confirmed at quote time; no stock-holding claim is made here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/SH31401M12A1200","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/SH31401M12A1200 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}