{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SH30551P0BF4000","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"SH30551P0BF4000","canonicalUrl":"https://aoctrl.com/schneider/SH30551P0BF4000","factsUrl":"https://aoctrl.com/api/mcp/products/SH30551P0BF4000","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric SH3 series servo motor with holding brake, 55 mm flange, 0.5 N.m nominal torque at 230 V single-phase, 290 W continuous power, Hiperface DSL absolute multiturn encoder, IP65 motor body, order code SH30551P0BF4000.","salesMarkdown":"## How the SH30551P0BF4000 fits a small-axis servo loop The Schneider Electric SH30551P0BF4000 is the braked version of the SH3 servo platform, sized for low-inertia point-to-point axes where the load has to hold position when the drive stage is de-energised. The 55 mm flange and 159 mm body length fit the standard short-footprint servo envelope, so it drops into typical cabinet-side machines without a mechanical redesign. Three supply rails are called out on the nameplate: 230 V single-phase yields 4000 rpm and 0.5 N.m nominal torque, while 400 V and 480 V three-phase both push to 8000 rpm and 9000 rpm respectively with 0.35 N.m nominal. Continuous power lands at 290 W on the three-phase rails and 160 W on the single-phase rail, so the drive sizing decision is really a question of which mains the cabinet sees. ## Torque envelope and where the brake earns its place Continuous stall torque is 0.42 N.m across the 115–480 V range, with peak stall up to 1.5 N.m for short accel/decel bursts. A 3 s peak current of 2.9 A Irms is the figure to hand the drive sizing tool — it sets the dynamic torque ceiling before the drive starts clipping the current loop. The integrated holding brake delivers 0.8 N.m of static torque at 10 W pull-in power, enough to lock a vertical or inclined axis against gravity when the drive stage drops out. Because the brake is fail-safe spring-applied, it holds without encoder feedback — the Hiperface DSL multiturn absolute encoder simply keeps absolute position so the controller does not need a homing routine on every power-up. ## Mechanical envelope and cabinet-side integration The international-standard flange with a 40 mm centring collar and 5.5 mm mounting holes matches the common 55 mm servo footprint, so gearhead and coupling selection stay inside the SH3 ecosystem. Shaft is 9 mm diameter smooth-bore, 20 mm long, which dictates the coupling bore and the keyway decision on the driven side. Maximum radial load is 370 N at 1000 rpm on the shaft and 40 N axial, both figures falling with speed and load distance — bearing life on a belt-coupled axis is normally driven by the radial figure, while a direct-coupled pinion usually sets the axial limit. Natural convection cooling keeps the thermal path simple: no fan to clean or fail in a sealed cabinet. Sealing is rated IP65 on the motor body and IP54 at the shaft bushing when no shaft seal is fitted, per IEC 60034-5. That puts the SH3 inside most factory-floor enclosures and light washdown areas, but it is not an IP67K rating — if the application is a food-and-bevery line with direct spray, plan for a shaft seal or a different motor. Electrical connection is a rotatable right-angle quick-lock connector, which keeps the cable exit flexible inside the cabinet. ## Drive matching and electrical constants Torque constant is 0.58 N.m/A at 120 °C and back-EMF constant is 40 V/krpm at 20 °C — both scale together so the drive's current loop and voltage headroom can be planned from the same pair of numbers. Stator resistance is 41.8 Ohm and inductance 37.13 mH, typical for a small-frame servo and consistent with the 2.9 A Irms ceiling and 3-pole construction. Hiperface DSL on a single cable carries both power and feedback back to the drive, which simplifies the cabinet wiring and reduces the number of connectors that can work loose on a vibrating axis. Maximum mechanical speed is 9000 rpm — the drive should be configured so its overspeed detection trips inside that ceiling. ## Lifecycle and ordering posture Lifecycle stage is recorded as current, so the SH30551P0BF4000 is in normal production. No official successor or cross-reference appears on the record. For a BOM position the practical sourcing posture is to quote against an RFQ — independent distribution carries the line and confirms lot-traceable availability and pricing at quote time, without claiming same-day stock on a motor built to order.","metaTitle":"Schneider SH30551P0BF4000 SH3 Servo Motor, Brake, 290 W","metaDescription":"Schneider Electric SH30551P0BF4000 SH3 servo motor with brake, 290 W continuous, 0.5 N.m nominal torque, Hiperface DSL encoder. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Servo Motors with Brake"],"specifications":{"title":"SH30551P0BF4000","Length":"159 mm","Inertia":"0.021 kg.cm² of brake 0.059 kg.cm² of motor","Shaft end":"Smooth shaft","description":"SH3 servomotor, 55mm, 1 stack, smooth Shaft, Multiturn DSL 18bit, Brake, OneMotorCable angular M17, IP54/65","Encoder type":"Absolute multiturn Hiperface DSL","Shaft length":"20 mm","Holding brake":"With","Nominal speed":"4000 rpm at 230 V single phase 8000 rpm at 400 V three phase 9000 rpm at 480 V three phase","Rotor inertia":"0.08 kg.cm²","Holding torque":"0.8 N.m","Nominal torque":"0.5 N.m at 230 V single phase 0.35 N.m at 400 V three phase 0.35 N.m at 480 V three phase","Product weight":"1.35 kg","Shaft diameter":"9 mm","Torque constant":"0.58 N.m/A at 120 °C","Type of cooling":"Natural convection","lifecycle_stage":"current","Continuous power":"290 W","Mounting support":"International standard flange","Sizing reference":"SH30551P","Back emf constant":"40 V/krpm at 20 °C","Device short name":"SH3","Motor flange size":"55 mm","Peak stall torque":"1.5 N.m at 115...480 V three phase","Stator inductance":"37.13 mH","Stator resistance":"41.8 Ohm","Brake pull-in power":"10 W","Maximum current Irms":"2.9 A","Nominal output power":"160 W at 230 V single phase 290 W at 400 V three phase 290 W at 480 V three phase","Centring collar depth":"2 mm","Electrical connection":"quicklock rotatable right angled connector","Number of motor poles":"3.0","Maximum axial force Fa":"40 N","Output current 3s peak":"2.9 A","Temperature copper hot":"130 °C","Continuous stall torque":"0.42 N.m at 115...480 V three phase","IP degree of protection":"IP65 motor: conforming to IEC 60034-5 IP54 shaft bushing without shaft seal ring: conforming to IEC 60034-5","Maximum radial force Fr":"370 N at 1000 rpm","Mounting holes diameter":"5.5 mm","Centring collar diameter":"40 mm","Continuous stall current":"0.73 A","Maximum mechanical speed":"9000 rpm","Network number of phases":"3","Number of mounting holes":"4","Product or component type":"Servo motor","Speed feedback resolution":"262144 points/turn x 4096 turns","[Us] rated supply voltage":"115...480 V","Circle diameter of the mounting holes":"63 mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d2a6a68b9334c6cf87cf9968bea316f2.pdf","sourceUrl":"https://www.se.com/uk/en/product/SH30551P0BF4000/sh3-servomotor-55mm-1-stack-smooth-shaft-multiturn-dsl-18bit-brake-onemotorcable-angular-m17-ip54-65/"},"ai":{"faq":[{"question":"What is the SH30551P0BF4000's listed length and flange size on this line?","answer":"The SH30551P0BF4000 is a 55 mm flange servo with a 159 mm body length, fitting the short-footprint SH3 family. The international-standard flange uses a 40 mm centring collar and 5.5 mm mounting holes, so it shares mounting geometry with the rest of the SH3 short-frame range."},{"question":"What is the SH30551P0BF4000's listed inertia on this servo line?","answer":"The rotor inertia is 0.08 kg.cm², with the holding brake contributing 0.021 kg.cm² and the bare motor listed at 0.059 kg.cm² — the brake-rotor sum is what the axis sizing calculation uses for acceleration and deceleration. For a small low-inertia axis that ratio keeps the SH3 quick to accelerate relative to its torque output."},{"question":"How is the SH30551P0BF4000 sourced and priced?","answer":"The line is current, so no last-time-buy or phase-out clause applies, but lot-traceable sourcing is the normal procurement posture for a built-to-order servo motor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/SH30551P0BF4000","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/SH30551P0BF4000 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}