{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1024-1AD00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1024-1AD00","canonicalUrl":"https://aoctrl.com/siemens/3RT1024-1AD00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1024-1AD00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S0 power contactor, 3RT1024-1AD00, 3 NO main contacts, screw terminals, 12.5 A at AC-4 400 V, 7.5 kW at 500/690 V, IP20 front, snap-on DIN rail.","salesMarkdown":"## SIRIUS S0 contactor — panel-fit and electrical ratings The Siemens 3RT1024-1AD00 is a SIRIUS S0 power contactor with three normally-open main contacts and zero NC main contacts. It snaps onto 35 mm DIN rail per DIN EN 50022 and accepts screw-type terminals for both main and auxiliary circuits — the main terminals handle 2x (0.5…1.5 mm²) solid or 2x (0.75…2.5 mm²) stranded, up to 2x 4 mm² max. On the switching side, the contactor is rated 12.5 A in AC-4 duty at 400 V — that's the category for reversing, inching, and plugging of squirrel-cage motors, where the contacts make and break locked-rotor current. For continuous motor starting (AC-2), it delivers 5.5 kW at 400 V, and for general power distribution, it handles 7.5 kW at both 500 V and 690 V. The coil operates at 50 Hz, 42 V rated value. Mechanical endurance is listed at 10 million cycles typical. ## Short-circuit coordination and compliance The 3RT1024-1AD00 is in current lifecycle stage. For type 2 coordination (no welding, contactor remains operational after a fault), the fuse drops to 25 A gL/gG. These fuse ratings define the maximum prospective fault current the contactor can withstand without catastrophic failure. RoHS compliance is established with a substance prohibition date of 01.07.2006, covering the original EU directive. ## Auxiliary switching and wiring notes Auxiliary contacts are rated for AC-12 duty at 10 A maximum. The contactor carries specific switching capacities at various voltages: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V. These are the make-and-break ratings for the control circuit — useful when sizing pilot devices or PLC outputs feeding the coil. Auxiliary terminal wiring accepts 2x (1…2.5 mm²) solid or stranded, up to 2x 10 mm² max. AWG equivalents for main contacts are 2x (16…12) and 2x (14…10), with a single 8 AWG maximum. For auxiliary contacts, AWG runs 2x (20…16) and 2x (18…14), single 12 AWG max.","metaTitle":"Siemens 3RT1024-1AD00 SIRIUS S0 Contactor, 3NO, 12.5A AC-4","metaDescription":"Siemens 3RT1024-1AD00 SIRIUS S0 power contactor, 3 NO main contacts, rated 12.5 A at AC-4 400 V, 7.5 kW at 500/690 V. Current lifecycle stage. Screw terminals, DIN rail mount. Quot","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"91 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"45 mm","Height":"85 mm","at 50 Hz":"0.8 ... 1.1","On The Front":"IP20","1 Rated Value":"50 Hz","Of The Terminal":"IP00","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Size Of Contactor":"S0","Solid Or Stranded":"2x (1 ... 2,5 mm²), 2x (2,5 ... 6 mm²), max. 2x 10 mm²","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Product Designation":"power contactor","at 24 V rated value":"10 A","at 60 V rated value":"2 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"1 A","at 220 V rated value":"0.3 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 50 Hz rated value":"42 V","at 500 V rated value":"7.5 kW","at 690 V rated value":"7.5 kW","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-2 at 400 V rated value":"5.5 kW","at AC-4 at 400 V rated value":"12.5 A","Substance Prohibitance (Date)":"01.07.2006 00:00:00","at AWG cables for main contacts":"2x (16 ... 12), 2x (14 ... 10), 1x 8","For Auxiliary And Control Circuit":"screw-type terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 25 A","reference code acc. to IEC 81346-2":"Q","With Type Of Coordination 1 Required":"fuse gL/gG: 63 A","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","operational current at AC-12 maximum":"10 A","number of NC contacts for main contacts":"0","number of NO contacts for main contacts":"3","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Number Of Poles For Main Current Circuit":"3","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","apparent holding power of magnet coil at AC":"7.8 V·A","apparent pick-up power of magnet coil at AC":"61 V·A","Type Of Voltage Of The Control Supply Voltage":"AC","Required Spacing For Grounded Parts At The Side":"6 mm","Inductive Power Factor With Closing Power Of The Coil":"0.82","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.24","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","number of NC contacts for auxiliary contacts instantaneous contact":"0","number of NO contacts for auxiliary contacts instantaneous contact":"0","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=524360&mlfb=3RT1024-1AD00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1024-1AD00/alternatives.json"},"ai":{"faq":[{"question":"What are the key electrical ratings for 3RT1024-1AD00?","answer":"The contactor is rated 12.5 A at AC-4 400 V, 5.5 kW at AC-2 400 V, and 7.5 kW at both 500 V and 690 V. Coil voltage is 42 V at 50 Hz. Mechanical life is 10 million cycles typical."},{"question":"What compliance documentation does Siemens provide for 3RT1024-1AD00?","answer":"RoHS compliance is established with a substance prohibition date of 01.07.2006. The product carries IEC 81346-2 reference code Q. Pollution degree 3 is specified per IEC standards."},{"question":"Where can I buy 3RT1024-1AD00 and get current pricing?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"Will 3RT1024-1AD00 drop into a panel specified around 3RT1026-1AB00?","answer":"Both are SIRIUS S0 contactors with the same 45 mm width and DIN rail mounting, so they share the same footprint and rail slot. The main difference is the current rating — 3RT1026-1AB00 is a higher-rated variant. Check the coil voltage and auxiliary contact configuration on your panel drawing before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1024-1AD00","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/3RT1024-1AD00 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}}