{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA6120-2DP32","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA6120-2DP32","canonicalUrl":"https://aoctrl.com/siemens/3RA6120-2DP32","factsUrl":"https://aoctrl.com/api/mcp/products/3RA6120-2DP32","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA6120-2DP32 compact direct starter, 5.5 kW at 400 V, 12 A rated current, 53 kA breaking capacity at 400 V, adjustable CLASS 10 and 20, 110-240 V AC/DC coil, spring-loaded terminals, 45 mm wide.","salesMarkdown":"## What this compact starter handles The 3RA6120-2DP32: The trip class is field-adjustable between CLASS 10 and CLASS 20, so you match the thermal curve to the motor start profile — CLASS 10 for shorter acceleration times, CLASS 20 for high-inertia loads like fans or conveyors that take longer to come up to speed. ## Coil supply and wiring The coil accepts 110-240 V AC/DC across 50 and 60 Hz — one part number covers both line frequencies and DC control supplies, so you don't need to track separate coil variants. Power consumption is 6 W AC and 5.1 W DC, which keeps the heat rise low inside a crowded panel. Two integrated status LEDs give a quick visual on coil state and overload trip without needing a multimeter. Main circuit connections use spring-loaded terminals accepting solid wire 2x 0.25-1.5 mm² — no screw torque to check, just strip and push. The control circuit terminals are likely the same spring-clamp style (common on SIRIUS compact starters), though the evidence only confirms the main circuit termination. ## Mounting and environment Mounts by screw or snap-on onto standard DIN rail, with recommended vertical orientation on horizontal rail — though the unit itself can be installed in any position. Rated for pollution degree 3 — that's industrial environments with conductive dust or condensation, so no extra conformal coating needed for most panel environments. Operating temperature range is -20 to +60 °C, storage and transport -55 to +80 °C. Vibration resistance is tested to 20 m/s² at 5.8-500 Hz, and shock resistance to 60 m/s² (6g) for 10 ms — rated for machine-mounted applications where the panel sees regular vibration from nearby motors or presses. No stock-holding claim; sourced per RFQ through independent industrial distribution.","metaTitle":"Siemens 3RA6120-2DP32 SIRIUS Compact Starter, 53 kA at 400 V","metaDescription":"Siemens 3RA6120-2DP32 SIRIUS compact direct starter, 5.5 kW at 400 V, adjustable CLASS 10/20, 53 kA breaking capacity. Active production, quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Starters"],"specifications":{"Depth":"165 mm","Solid":"2x (0.25 ... 1.5 mm²)","Width":"45 mm","at DC":"110 ... 240 V","title":"3RA6120-2DP32","Height":"191 mm","at 400 V":"53 kA","at 50 Hz":"110 ... 240 V","at 60 Hz":"110 ... 240 V","Trip Class":"CLASS 10 and 20 adjustable","Recommended":"vertical, on horizontal standard DIN rail","description":"SIRIUS Compact load feeder DOL starter 690 V 110...240 V AC/DC 50...60 Hz 3...12 A IP20 Connection main circuit: Spring-type terminal Connection auxiliary circuit: Spring-type terminal","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","at AC maximum":"6 W","at DC maximum":"5.1 W","During Storage":"-55 ... +80 °C","number of LEDs":"2","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":"240 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":"5 500 W","at 480 V rated value":"12 A","at 50 Hz rated value":"240 V","at 500 V rated value":"3 kA","at 600 V rated value":"12 A","at 690 V rated value":"3 kA","AS-Interface protocol":"No","Design Of The Product":"direct starter","For Main Current Circuit":"spring-loaded terminals","at 200/208 V rated value":"3 hp","at 220/230 V rated value":"3 hp","at 460/480 V rated value":"7.5 hp","at 575/600 V rated value":"10 hp","at AC at 400 V rated value":"12 A","NO-Load Switching Frequency":"3 600 1/h","Of The Main Contacts Typical":"10 000 000","at AC in hot operating state":"1.8 W","at AC-3 at 400 V rated value":"5.5 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":"spring-loaded 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":"6 W","Surge Voltage Resistance Rated Value":"6 000 V","at AWG cables for auxiliary contacts":"2x (24 ... 16)","Between Control And Auxiliary Circuit":"300 V","at AC in hot operating state per pole":"0.6 W","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":"2x (0.25 ... 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 %","Finely Stranded Without Core End Processing":"2x (0.25 ... 1.5 mm²)","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":"1","number of NO contacts for auxiliary contacts":"1","operating voltage at AC-3 rated value maximum":"690 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":"3 ... 12 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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/06c82ec0df3aa451a94fa35b226df3b1.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=499499&mlfb=3RA6120-2DP32"},"ai":{"faq":[{"question":"What is the breaking capacity of 3RA6120-2DP32?","answer":"53 kA at 400 V."},{"question":"What trip classes does 3RA6120-2DP32 support?","answer":"Adjustable between CLASS 10 and CLASS 20. CLASS 10 is for standard motor starts with short acceleration times; CLASS 20 is for high-inertia loads like fans or conveyors that take longer to reach full speed."},{"question":"What wire sizes does the 3RA6120-2DP32 accept?","answer":"The main circuit spring-loaded terminals accept solid wire 2x 0.25 to 1.5 mm². No screw torque to check — strip and push."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA6120-2DP32","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/3RA6120-2DP32 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}