{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2120-1HA24-0AK6","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2120-1HA24-0AK6","canonicalUrl":"https://aoctrl.com/siemens/3RA2120-1HA24-0AK6","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2120-1HA24-0AK6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA2120-1HA24-0AK6 non-fused load feeder, S0 size, direct starter, CLASS 10 trip class, 690 V AC-3 max, screw and snap-on 35 mm DIN rail mounting.","salesMarkdown":"## CLASS 10 trip and S0 frame — what they mean for motor protection The 3RA2120-1HA24-0AK6: Rated for AC-3 switching duty up to 690 V, this direct starter handles the inrush of squirrel-cage motors without welding the main contacts — the contactor inside is a 3RT2024-1AK60, paired with the link module 3RA2921-1AA00. ## Power ratings across common supply voltages At 400 V, the unit is rated for 3 000 W (3 kW) motor output; at 480 V it delivers 7.92 A; at 600 V it delivers 6.33 A — the current drops as voltage rises because the motor power rating is fixed for the frame. Horsepower ratings span 1 hp at 230 V up to 5 hp at 460/480 V and 575/600 V — this covers the common North American motor voltages in a single device. The 110 V and 120 V control coil options (50/60 Hz) let the same unit work across 50 Hz and 60 Hz supply regions without a coil change. ## Mounting and panel integration The backwards clearance is 0 mm — the unit can sit flush against the back panel or against adjacent devices on the same rail. Operating temperature range is -20 to +60 °C, storage and transport range is -50 to +80 °C — suitable for unheated warehouses and truck transport in temperate climates. ## Lifecycle and compliance — active production, RoHS dated Degree of pollution 3 means the device is rated for conductive pollution environments (condensation, occasional conductive dust) — typical for industrial control panels not in clean-room conditions.","metaTitle":"Siemens 3RA2120-1HA24-0AK6 SIRIUS Non-Fused Load Feeder, S0","metaDescription":"Siemens 3RA2120-1HA24-0AK6 SIRIUS non-fused load feeder, S0 size, CLASS 10 trip, 690 V max. Active production, quoted to order. RoHS compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Starters"],"specifications":{"Depth":"97.1 mm","Width":"45 mm","title":"3RA2120-1HA24-0AK6","Height":"193.1 mm","Upwards":"30 mm","Forwards":"10 mm","Backwards":"0 mm","Downwards":"10 mm","Trip Class":"CLASS 10","At The Side":"9 mm","Rated Value":"690 V","description":"FUSELESS LOAD FEEDER DIRECT START, AC 400V, SZ. S0, 5.5...8A, AC 110/120V 50/60HZ SCREW TERMINAL FOR RAIL MOUNTING, TYPE OF ASSIGNMENT 2,IQ = 150KA (ALSO FULFILLS TYPE OF ASSIGNMENT 1) 1NO+1NC (CONTACTOR)","During Storage":"-50 ... +80 °C","lifecycle_stage":"current","During Operation":"-20 ... +60 °C","During Transport":"-50 ... +80 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail","Mounting Position":"vertical","Product Brand Name":"SIRIUS","Type Of Assignment":"2","Degree Of Pollution":"3","Product Designation":"non-fused load feeders 3RA2","Size Of Load Feeder":"S0","at 230 V rated value":"1 hp","at 400 V rated value":"3 000 W","at 480 V rated value":"7.92 A","at 50 Hz rated value":"110 V","at 500 V rated value":"4 000 W","at 60 Hz rated value":"120 V","at 600 V rated value":"6.33 A","at 690 V rated value":"5 500 W","Design Of The Product":"direct starter","at 110/120 V rated value":"0.33 hp","at 200/208 V rated value":"2 hp","at 220/230 V rated value":"2 hp","at 460/480 V rated value":"5 hp","at 575/600 V rated value":"5 hp","Of The Supplied Contactor":"3RT2024-1AK60","Of The Supplied Link Module":"3RA2921-1AA00","Size Of The Circuit-Breaker":"S0","at AC-3 rated value maximum":"690 V","Substance Prohibitance (Date)":"10/01/2009","Design Of The Overload Release":"thermal (bimetallic)","Design Of The Switching Contact":"electromechanical","Operating Frequency Rated Value":"50 ... 60 Hz","Design Of The Short-Circuit Trip":"magnetic","Of The Supplied Circuit-Breakers":"3RV2021-1HA10","Product Extension Auxiliary Switch":"Yes","Surge Voltage Resistance Rated Value":"6 kV","Number Of Poles For Main Current Circuit":"3","Product Function Short Circuit Protection":"Yes","apparent holding power of magnet coil at AC":"8.5 VA","shock resistance according to IEC 60068-2-27":"6g / 11 ms","at 400 V according to IEC 60947-4-1 rated value":"153 000 A","at 500 V according to IEC 60947-4-1 rated value":"42 000 A","at 690 V according to IEC 60947-4-1 rated value":"4 000 A","operational current at AC-3 at 400 V rated value":"6.5 A","Type Of Electrical Connection For Main Current Circuit":"screw-type terminals","Mechanical Service Life (Operating Cycles) Of Contactor Typical":"10 000 000","Response Value Current Of Instantaneous Short-Circuit Trip Unit":"104 A","insulation voltage with degree of pollution 3 at AC rated value":"690 V","Type Of Connectable Conductor Cross-Sections For Main Contacts Stranded":"1 ... 10 mm², 2x (2.5 ... 6 mm²)","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"5.5 ... 8 A","Connectable Conductor Cross-Section For Main Contacts Finely Stranded With Core End Processing":"1 ... 6 mm²"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$121.92","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ab549ce3249b92fb4ab3d2224dfd554c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=349917&mlfb=3RA2120-1HA24-0AK6"},"ai":{"faq":[{"question":"What compliance documentation does Siemens provide for 3RA2120-1HA24-0AK6?","answer":"The unit also carries a degree of pollution 3 rating for industrial environments. Full UL, CSA, and CE documentation is available from Siemens on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2120-1HA24-0AK6","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/3RA2120-1HA24-0AK6 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}}