{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ILS1B851PB1F0","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"ILS1B851PB1F0","canonicalUrl":"https://aoctrl.com/schneider/ILS1B851PB1F0","factsUrl":"https://aoctrl.com/api/mcp/products/ILS1B851PB1F0","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric, Lexium integrated drive series, ILS stepper drive, ILS1B851PB1F0, 85 mm flange, 6 N·m holding brake, 24/36 VDC.","salesMarkdown":"## What the ILS1B851PB1F0 actually drives The ILS1B851PB1F0 sits inside Schneider's Lexium integrated drive (ILS) family, combining a 3-phase stepper motor with on-board drive electronics so a single module carries both the power stage and the motion controller. It is wired through a printed circuit board connector and uses four signals configurable as inputs or outputs for end-of-travel limits, enable, fault, or pulse direction depending on the host controller. Power enters as a DC bus on a single-phase architecture; the part carries CE marking and is designed to EN/IEC 61800-3 (second environment) plus EN/IEC 50178, which is the industrial drive EMC and insulation book. Practically, that means the module is meant to live inside a machine cabinet, not on the open factory floor, and it should be grounded through the PCB connector shield path the way the integration manual specifies. ## Torque, speed, and the holding brake The integrated holding brake pulls in with 22 W and releases in 40 ms; with a 6 N·m holding figure the brake is sized for the same shaft load the motor produces, so axis sizing is a single envelope rather than a motor-plus-brake pair. Index-pulse feedback gives homing accuracy to ±6 arc minutes, which is the figure that matters when this drive is paired against a reference mark in a registration cut. ## Safety functions and EMC envelope Current consumption is capped at 5000 mA maximum and cooling is by natural convection only, so the cabinet layout must keep the surrounding free-air space the integration manual calls out. Mechanical environment is rated to EN/IEC 60068-2-6 vibration (20 m/s² across 10–500 Hz for 10 cycles) and 60068-2-29 shock (150 m/s² for 1000 shocks), with 15–85% non-condensing humidity and 1000 m altitude without derating — a typical indoor panel envelope, not a washdown or outdoor deployment. ## Mechanical fit into the machine frame The 85 mm flange is the standard NEMA 23-class footprint for this class of integrated drive, with a 7.4 in (187.3 mm) body length, 12 mm shaft diameter, 30 mm shaft length, and untapped shaft end. Centring collar depth is 0.08 in (2 mm) — the small clearance that drives whether a customer can reuse an existing mounting plate or needs a new adapter. There is no gearbox, no second shaft end, and no integrated gear option on this code. Communications ride on a multi-drop RS-485-style link supporting 9.6, 19.2, 45.45, 93.75, 187.5, 500, 1500, 3000, 6000, and 12000 kbauds; that ladder is the Lexium ILS default, and the right rate is whichever matches the host motion controller's bus cycle — not the highest number on the list. ## Sourcing posture for the BOM line CE compliance and the EN/IEC 61800-3 (second environment) conformance are the approvals a European machine builder will ask for at the declaration of conformity step.","metaTitle":"Schneider Electric ILS1B851PB1F0 Servo Drive, 6 N·m, 24/36 V","metaDescription":"Schneider Electric Lexium ILS1B851PB1F0 integrated stepper drive: 85 mm flange, 6 N·m holding brake torque, 24/36 VDC, CE marked.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Servo Drives"],"specifications":{"Phase":"Single phase","title":"ILS1B851PB1F0","Length":"7.4 in (187.3 mm)","Marking":"CE","Category":"18288-LEXIUM INTEGRATED DRIVES II","Shaft end":"Untapped","Standards":"EN 61800-3 : 2001-02 EN/IEC 50178 EN 50347 EN 61800-3:2001, second environment EN/IEC 61800-3 IEC 61800-3, Ed 2 IEC 60072-1","Motor Type":"3-phase stepper motor","description":"integrated drive ILS with stepper motor - 24..36 V - Profibus DP - 5 A","Network type":"DC","Second shaft":"Without second shaft end","Shaft length":"1.2 in (30 mm)","Winding type":"Medium speed of rotation and medium torque","Feedback type":"Index pulse","Gear box type":"Without","Holding brake":"With","Nominal speed":"200 rpm 24 V 400 rpm 36 V","Rotor inertia":"1.3 kg.cm²","Accuracy error":"+/- 6 arc min","Holding torque":"53.1 lbf.in (6 N.m) holding brake 17.7 lbf.in (2 N.m)","Nominal torque":"17.7 lbf.in (2 N.m)","Shaft diameter":"0.5 in (12 mm)","Protection Type":"Safe torque off Short circuit of the output voltage Overload of output voltage","Type of cooling":"Natural convection","lifecycle_stage":"current","Mounting Support":"Flange 85 mm","Range of Product":"Lexium integrated drive","Shock resistance":"150 m/s² 1000 shocks EN/IEC 60068-2-29","Device short name":"ILS","Input/output type":"4 signals (each be used as input or output)","Motor flange size":"3.3 in (85 mm)","Peak stall torque":"17.7 lbf.in (2 N.m)","Relative humidity":"15...85 % without condensation","Transmission Rate":"9.6, 19.2, 45.45, 93.75, 187.5, 500, 1500, 3000, 6000 and 12000 kbauds","Brake release time":"40 ms","Operating altitude":"<= 3280.84 ft (1000 m) without derating","Brake pull-in power":"22 W","Current consumption":"5000 mA maximum","Vibration resistance":"20 m/s² 10...500 Hz) 10 cycles EN/IEC 60068-2-6","Centring collar depth":"0.08 in (2 mm)","Electrical Connection":"Printed circuit board connector","Nbr. of units in pkg.":"1","Number of motor poles":"6","Service life in hours":"20000 h bearing","Supply voltage limits":"18...40 V","Associated fuse rating":"10 A","Brake application time":"20 ms","Discrete input current":"10 mA at 24 V on/STO_A safety input 3 mA at 24 V on/STO_B safety input 2 mA at 24 V 24 V signal interface","Maximum axial force Fa":"170 N tensile force) 30 N force pressure)","Number of motor stacks":"1","Communication interface":"Profibus DP, Integrated","Continuous stall torque":"17.7 lbf.in (2 N.m)","Discrete output voltage":"23...25 V","IP degree of protection":"IP41 shaft bushing: conforming to EN/IEC 60034-5 IP54 total except shaft bushing: conforming to EN/IEC 60034-5","Maximum radial force Fr":"100 N","Mounting holes diameter":"0.3 in (6.5 mm)","Centring collar diameter":"2.4 in (60 mm)","Maximum mechanical speed":"2000 rpm","Number of mounting holes":"4","Maximum switching current":"100 mA per output 200 mA total","Product or Component Type":"Motion integrated drive","Speed feedback resolution":"20000 points/turn","[Us] rated supply voltage":"36 V 24 V","Voltage state 0 guaranteed":"-3...4.5 V","Voltage state 1 guaranteed":"15...30 V","Ambient Air Temperature for Storage":"-13...158 °F (-25...70 °C)","Ambient air temperature for operation":"122...149 °F (50...65 °C) (with power derating of 2 % per °C) 32...122 °F (0...50 °C) (without derating)","Circle diameter of the mounting holes":"3.9 in (99 mm)","Permissible ambient air temperature around the device":"221 °F (105 °C) power amplifier 230 °F (110 °C) motor"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c0a6160c17d9eb8416cc67d90424f974.pdf","sourceUrl":"https://www.se.com/vn/en/product/ILS1B851PB1F0/integrated-drive-ils-with-stepper-motor-24-36-v-profibus-dp-5-a/"},"ai":{"faq":[{"question":"What is the ILS1B851PB1F0's listed phase and DC bus voltage?","answer":"The ILS1B851PB1F0 is single-phase input on a DC network, and its nominal speed envelope is 200 rpm at 24 V or 400 rpm at 36 V — the bus voltage is what sets the application's usable speed."},{"question":"Who supplies the ILS1B851PB1F0 and how is it priced for volume?","answer":"Independent distribution handles the ILS1B851PB1F0 against an RFQ, with current pricing and lead time confirmed at quote time. Volume breaks and authorized traceability are worked out per BOM quantity on the quote, not on a generic shelf price."},{"question":"What compliance documentation does Schneider Electric provide for the ILS1B851PB1F0?","answer":"The ILS1B851PB1F0 is CE marked and conforms to EN/IEC 61800-3 (second environment), EN/IEC 50178, EN 50347, and IEC 60072-1, plus IEC 61800-3 Ed 2 — the EMC, insulation, and motor-mechanical standards that go into a Schneider Declaration of Conformity for this drive family."},{"question":"What is the ILS1B851PB1F0's mechanical envelope — flange size and body length?","answer":"The ILS1B851PB1F0 mounts on an 85 mm flange with a 7.4 in (187.3 mm) body length, a 12 mm untapped shaft at 30 mm long, and a 2 mm centring collar — standard NEMA 23-class footprint for this Lexium integrated drive family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/ILS1B851PB1F0","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/ILS1B851PB1F0 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}}