{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA6250-1EB32","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA6250-1EB32","canonicalUrl":"https://aoctrl.com/siemens/3RA6250-1EB32","factsUrl":"https://aoctrl.com/api/mcp/products/3RA6250-1EB32","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS compact reversing starter, 3RA6250-1EB32, 15 kW at 400 V, 53 kA breaking capacity, adjustable trip class 10/20, screw terminals, DIN rail mount.","salesMarkdown":"The Siemens 3RA6250-1EB32 is a SIRIUS compact reversing starter — a single device that combines a reversing contactor and overload relay in one package. Rated 15 kW at 400 V (AC-3 motor duty) and 32 A at 480 V, it handles reversing motor loads like conveyors, hoists, and pumps where direction change is part of the cycle. The adjustable trip class (CLASS 10 or 20) lets you match the overload curve to the motor's starting profile — a tight 10 for short acceleration, or 20 for high-inertia loads that need a longer ramp. ## Mounting and wiring in the panel The 90 mm width takes three standard 18 mm module slots, so it fits a typical motor control centre footprint. Screw-type terminals on the main circuit accept solid conductors from 0.5 to 4 mm² (or two up to 2.5 mm² each), which covers most motor leads in this power class. Depth is 165 mm, height 170 mm — check your enclosure depth if you're retrofitting into a shallow gland plate. With a breaking capacity of 53 kA at 400 V, this starter can interrupt high fault currents without upstream fuses. That figure is the short-circuit making/breaking capacity per IEC 60947-6-2. For selectivity coordination, pair it with a matching SIRIUS fuse or circuit breaker; the manufacturer publishes coordination tables. The reversing design means two contactor mechanisms interlocked mechanically and electrically — no external interlock relay needed. Rated for continuous operation from -20 to +60 °C ambient, with storage down to -55 °C. Vibration resistance tested to 20 m/s² (2g) at 5.8–500 Hz, and shock rated at 60 m/s² (6g) — solid for installation near rotating machinery or on mobile equipment. The part is specified into new designs and available through normal Siemens distribution.","metaTitle":"Siemens 3RA6250-1EB32 SIRIUS Compact Reversing Starter, 15 k","metaDescription":"Siemens 3RA6250-1EB32 SIRIUS compact reversing starter, 15 kW at 400 V, 53 kA breaking capacity, adjustable trip class 10/20, current production. RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Starters"],"specifications":{"Depth":"165 mm","Solid":"0.5 ... 4 mm², 2x (0.5 ... 2.5 mm²)","Width":"90 mm","at DC":"24 ... 24 V","Height":"170 mm","at 400 V":"53 kA","at 50 Hz":"24 ... 24 V","at 60 Hz":"24 V","Trip Class":"CLASS 10 and 20 adjustable","Recommended":"vertical, on horizontal standard DIN rail","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","at AC maximum":"3.5 W","at DC maximum":"3.1 W","During Storage":"-55 ... +80 °C","number of LEDs":"3","Type Of Voltage":"AC/DC","lifecycle_stage":"current","During Operation":"-20 ... +60 °C","During Transport":"-55 ... +80 °C","Fastening Method":"screw and snap-on mounting","IO-Link protocol":"No","Shock Resistance":"a=60 m/s2 (6g) with 10 ms per 3 shocks in all axes","Mounting Position":"any","at DC rated value":"24 V","Product Brand Name":"SIRIUS","Type Of Assignment":"continous operation according to IEC 60947-6-2","Degree Of Pollution":"3","Product Designation":"compact starter","Vibration Resistance":"f= 4 ... 5.8 Hz, d= 15 mm; f= 5.8 ... 500 Hz, a= 20 m/s²; 10 cycles","at 400 V rated value":"15 000 W","at 480 V rated value":"32 A","at 50 Hz rated value":"24 V","at 60 Hz rated value":"24 V","AS-Interface protocol":"No","Design Of The Product":"reversing starter","For Main Current Circuit":"screw-type terminals","at 200/208 V rated value":"7.5 hp","at 220/230 V rated value":"10 hp","at 460/480 V rated value":"20 hp","at AC at 400 V rated value":"32 A","NO-Load Switching Frequency":"3 600 1/h","Of The Main Contacts Typical":"10 000 000","at AC in hot operating state":"5.4 W","at AC-3 at 400 V rated value":"15 kW","Of Auxiliary Contacts Typical":"10 000 000","Substance Prohibitance (Date)":"05/01/2012","Insulation Voltage Rated Value":"690 V","at DC-13 at 6 A at 24 V typical":"30 000","at AC-15 at 6 A at 230 V typical":"200 000","degree of protection NEMA rating":"other","For Auxiliary And Control Circuit":"screw-type terminals","Of The Signaling Contacts Typical":"10 000 000","Between Main And Auxiliary Circuit":"400 V","Design Of Short-Circuit Protection":"electromagnetic","Product Extension Auxiliary Switch":"Yes","Product Function Bus Communication":"No","Relative Humidity During Operation":"10 ... 90 %","Without Load Current Share Typical":"3.5 W","Surge Voltage Resistance Rated Value":"6 000 V","Between Control And Auxiliary Circuit":"300 V","at AC in hot operating state per pole":"1.8 W","for AWG cables for auxiliary contacts":"2x (20 ... 14)","Between Auxiliary And Auxiliary Circuit":"250 V","due to burst according to IEC 61000-4-4":"4 kV main contacts, 2 kV auxiliary contacts","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"0.5 ... 2.5 mm², 2x (0.5 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","Formula For Making Capacity Limit Current":"12 x Ie","Product Function Short Circuit Protection":"Yes","Supply voltage required Auxiliary voltage":"No","with low demand rate according to SN 31920":"40 %","Formula For Limit Current Breaking Capacity":"10 x Ie","at AC-41 according to IEC 60947-6-2 maximum":"750 1/h","at AC-43 according to IEC 60947-6-2 maximum":"250 1/h","with high demand rate according to SN 31920":"50 %","number of NC contacts for auxiliary contacts":"0","number of NO contacts for auxiliary contacts":"2","operating voltage at AC-3 rated value maximum":"400 V","electrostatic discharge according to IEC 61000-4-2":"8 kV","contact rating of auxiliary contacts according to UL":"contacts 21-22, 13-14, 43-44 Q600 / A600, contacts 77-78 R300 / B300, contacts 95-96-98 R300 / D300","Product Component Removable Terminal For Main Circuit":"Yes","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","product function control circuit interface with IO link":"No","conducted HF interference emissions according to CISPR11":"150 kHz ... 30 MHz Class A","field-bound HF interference emission according to CISPR11":"30 ... 1000 MHz Class A","operational current of auxiliary contacts at AC-12 maximum":"10 A","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","Product Function Control Circuit Interface To Parallel Wiring":"Yes","Product Component Removable Terminal For Auxiliary And Control Circuit":"Yes","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"8 ... 32 A","number of NO contacts of instantaneous short-circuit trip unit for signaling contact":"1","For Short-Circuit Protection Of The Signaling Switch Of The Overload Release Required":"4A gL/gG/400V","number of CO contacts of the current-dependent overload release for signaling contact":"1","For Short-Circuit Protection Of The Signaling Switch Of The Short-Circuit Release Required":"6A gL/gG/400V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$642.62 – $1,796.31","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c186df65123c3d33a4bc79aa352284b2.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=206414&mlfb=3RA6250-1EB32","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RA6250-1EB32/alternatives.json"},"ai":{"faq":[{"question":"What wire sizes does the main circuit accept?","answer":"Solid conductors from 0.5 to 4 mm², or two conductors up to 2.5 mm² each per terminal."},{"question":"Does this starter have an adjustable overload trip class?","answer":"Yes, adjustable between CLASS 10 and CLASS 20, so you can match the trip curve to the motor's starting characteristics."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA6250-1EB32","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3RA6250-1EB32 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}}