{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SH30551P1BA4000","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"SH30551P1BA4000","canonicalUrl":"https://aoctrl.com/schneider/SH30551P1BA4000","factsUrl":"https://aoctrl.com/api/mcp/products/SH30551P1BA4000","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric SH3 series AC servo motor, 55 mm flange, sizing reference SH30551P, absolute multiturn Hiperface DSL encoder, 4000–9000 rpm.","salesMarkdown":"## What the SH30551P1BA4000 is on the SH3 line The SH30551P1BA4000 is a member of Schneider's SH3 servo family, with a 55 mm flange and an international standard flange mounting footprint, identified on the sizing sheet as SH30551P. The 'BA4' suffix points to a Hiperface DSL absolute multiturn feedback device — the single-cable encoder/power link that keeps the cabinet wiring down to a quick-lock rotatable right-angle connector on the motor body. ## Speed-torque envelope across 230, 400 and 480 V On 230 V single phase the motor delivers its strongest continuous figure: 0.5 N·m nominal torque at 4000 rpm, 160 W continuous output. Stepping up to 400 V three phase or 480 V three phase shifts the operating point higher up the speed range — 8000 rpm at 400 V and 9000 rpm at 480 V — but the nominal torque settles at 0.35 N·m in both cases. The continuous power ceiling is 290 W on the 400 V and 480 V supplies, so the motor trades torque for speed when you run it from a three-phase bus. Peak stall torque is 1.5 N·m across the full 115…480 V three-phase range, with a 2.9 A Irms short-term current ceiling. That is roughly three times the 0.5 N·m nominal figure on the 230 V winding — useful sizing headroom for acceleration ramps, but the 3-second current peak of 2.9 A is the binding limit, not the nominal torque. ## Sizing, electrical signature and drive pairing The motor presents a 41.8 Ω stator resistance and 37.13 mH stator inductance — a high-resistance, low-inductance profile that suits the current-loop bandwidth of modern digital servo drives. The torque constant is 0.58 N·m/A at 120 °C winding temperature and the back-EMF constant is 40 V/krpm at 20 °C, so a drive commissioning engineer can read the steady-state bus current straight off the commanded torque without compensating for an unusual motor constant. The continuous stall current is 0.73 A against a continuous stall torque of 0.42 N·m at 115…480 V three phase — the figure that governs a vertical-axis hold under power, not the higher nominal rating. Copper-hot temperature class is 130 °C, the standard insulation grade for industrial servos, and natural convection is the only cooling path: no integrated fan, so the panel environment has to leave headroom around the motor body. ## Mechanical envelope, shaft loads and IP rating Length overall is 132.5 mm on a 55 mm flange with a 40 mm centring collar (2 mm depth) and four 5.5 mm mounting holes — the standard IEC frame footprint for this class, so a swap-in to a comparable SH3 or third-party 55 mm servo drops into the same bracket pattern. Maximum radial load is 370 N at 1000 rpm and maximum axial load is 40 N, which is typical of small-flange servos and limits the use of belt drives with large pulleys or long cantilevered couplings. The motor body is IP65 per IEC 60034-5, and the shaft bushing is IP54 without a shaft seal ring — adequate for plant air and washdown-light areas when the cable entry is properly torqued, but a food-and-beverage line expecting IP67 on the wet end needs the sealed-shaft variant. Maximum mechanical speed is 9000 rpm, so a drive commanded above the 480 V nominal speed range has to respect that ceiling or risk bearing damage.","metaTitle":"Schneider Electric SH30551P1BA4000 SH3 servo motor, 55 mm","metaDescription":"Schneider SH30551P1BA4000 SH3 servo motor, 55 mm flange, 0.5 N.m nominal, Hiperface DSL encoder, sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Servo Motors with Brake"],"specifications":{"title":"SH30551P1BA4000","Length":"132.5 mm","Inertia":"0.0 kg.cm² of brake 0.059 kg.cm² of motor","Key width":"3 mm","Shaft end":"Parallel key","description":"SH3 servomotor, 55mm, 1 stack, keyed Shaft, Multiturn DSL 18bit, no Brake, OneMotorCable angular M17, IP54/65","Encoder type":"Absolute multiturn Hiperface DSL","Shaft length":"20 mm","Holding brake":"Without","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":"0.059 kg.cm²","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":"1.2 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","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/39f8fb9d0b275833b5f31c767765e223.pdf","sourceUrl":"https://www.se.com/uk/en/product/SH30551P1BA4000/sh3-servomotor-55mm-1-stack-keyed-shaft-multiturn-dsl-18bit-no-brake-onemotorcable-angular-m17-ip54-65/"},"ai":{"faq":[{"question":"What is the SH30551P1BA4000's listed length on this Servo Motors with Brake line?","answer":"The motor length is 132.5 mm on a 55 mm flange with a 40 mm centring collar — the standard IEC 55 mm frame footprint for this SH3 reference."},{"question":"What is the SH30551P1BA4000's listed inertia on this Servo Motors with Brake line?","answer":"The rotor inertia is 0.059 kg·cm² for the motor itself; the holding-brake inertia field on the spec sheet reads 0.0 kg·cm² for the brake element, and the motor ships in the 'without' holding-brake configuration."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/SH30551P1BA4000","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/SH30551P1BA4000 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}}