{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1535-1AB00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1535-1AB00","canonicalUrl":"https://aoctrl.com/siemens/3RT1535-1AB00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1535-1AB00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT1535-1AB00, size S2, 40 A rated per NO/NC contact, 24 V 50 Hz coil, screw-type terminals, DIN rail mount.","salesMarkdown":"The coil pulls 12.5 VA at 50 Hz, 24 V rated value; the contactor is designed for screw and snap-on mounting onto 35 mm standard mounting rail per DIN EN 50022, which is the common DIN-rail profile in European control panels. Depth is 115 mm, width 73 mm, height 112 mm — check your enclosure depth clearance before committing the BOM line. Each main contact — both normally-open and normally-closed — is rated 40 A. That is the thermal current (Ith) at 40 °C ambient; for motor loads you derate to the AC-3 rating (not listed here, but typically around 18–22 A for an S2 frame). The auxiliary circuit also carries a 6 kV rated impulse withstand voltage. The coil holds at 24 V 50 Hz; dropout is not specified but typical for this class is around 0.7 × rated voltage. The magnet coil connection is screw-type as well. Solid wire capacity: 2x (0.5... 1.5 mm²), 2x (0.75... 2.5 mm²), max. 2x (0.75... 4 mm²). Stranded wire: 2x (0.75... 25 mm²). AWG for main contacts: 2x (18... 2). That covers most panel wiring up to 25 mm² stranded — enough for a 40 A feeder. Side-by-side mounting is allowed, which saves rail space when you gang multiple contactors. The mounting position allows vertical surface with +/-180° rotation and +/-30° tilt front/back.","metaTitle":"Siemens 3RT1535-1AB00 SIRIUS power contactor, S2 size, 24 V","metaDescription":"Siemens 3RT1535-1AB00 SIRIUS power contactor, S2 frame, 40 A rated per contact, 24 V 50 Hz coil, screw terminals, DIN rail mount. Active production. Source to RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"115 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"73 mm","at AC":"10 ... 30 ms","Height":"112 mm","Stranded":"2x (0.75 ... 25 mm²)","at 50 Hz":"12.5 VA","at 60 Hz":"0.36","Arcing Time":"10 ... 15 ms","At The Side":"6 mm","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","at AC-1 maximum":"1 000 1/h","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","Mounting Position":"with vertical mounting surface +/-180° rotatable, with vertical mounting surface +/- 30° tiltable to the front and back","Size Of Contactor":"S2","Solid Or Stranded":"2x (0,5 ... 1,5 mm²), 2x (0,75 ... 2,5 mm²), max. 2x (0,75 ... 4 mm²)","Product Brand Name":"SIRIUS","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 440 V rated value":"1 A","at 50 Hz rated value":"24 V","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","per NC contact rated value":"40 A","per NO contact rated value":"40 A","Of Main Circuit Rated Value":"6 kV","Substance Prohibitance (Date)":"05/01/2012","at AWG cables for main contacts":"2x (18 ... 2)","Of Auxiliary Circuit Rated Value":"6 kV","For Auxiliary And Control Circuit":"screw-type terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 80 A","at 24 V per NC contact rated value":"50 A","at 24 V per NO contact rated value":"50 A","at AC at 230 V maximum permissible":"0.018 A","At Contactor For Auxiliary Contacts":"Screw-type terminals","at 110 V per NC contact rated value":"12.5 A","at 110 V per NO contact rated value":"25 A","at 220 V per NC contact rated value":"2.5 A","at 220 V per NO contact rated value":"5 A","at 230 V per NC contact rated value":"9.5 kW","at 230 V per NO contact rated value":"9.5 kW","at 400 V per NC contact rated value":"18.5 kW","at 400 V per NO contact rated value":"18.5 kW","at 440 V per NC contact rated value":"0.135 A","at 440 V per NO contact rated value":"0.27 A","With Type Of Coordination 1 Required":"fuse gL/gG: 160 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":"2","number of NO contacts for main contacts":"2","reference code according to IEC 81346-2":"Q","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":"4","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","at ambient temperature 40 °C rated value":"60 A","at ambient temperature 60 °C rated value":"55 A","Finely Stranded Without Core End Processing":"2x (0.75 ... 16 mm²)","apparent holding power of magnet coil at AC":"12.5 VA","apparent pick-up power of magnet coil at AC":"145 VA","Type Of Voltage Of The Control Supply Voltage":"AC","for 3-phase AC motor at 460/480 V rated value":"25 hp","Inductive Power Factor With Closing Power Of The Coil":"0.79","Of Main Circuit With Degree Of Pollution 3 Rated Value":"690 V","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.36","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","Of Auxiliary Circuit With Degree Of Pollution 3 Rated Value":"690 V","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","minimum cross-section in main circuit at maximum AC-1 rated value":"16 mm²","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","power loss [W] at AC-3 at 400 V for rated value of the operational current per conductor":"2.6 W"}},"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=134368&mlfb=3RT1535-1AB00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1535-1AB00/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source — the 3RT2535-1AD00?","answer":"The 3RT2535-1AD00 is a different series (3RT2) with a 24 V DC coil, while the 3RT1535-1AB00 uses a 24 V 50 Hz AC coil. They share the S2 frame size and 40 A contact rating, but the coil supply is different — verify your control voltage before substituting."},{"question":"What is the depth of the 3RT1535-1AB00?","answer":"115 mm. That is the dimension from the mounting rail to the furthest projection — important for enclosure depth clearance."},{"question":"What solid wire sizes does the 3RT1535-1AB00 accept?","answer":"Solid wire: 2x (0.5... 1.5 mm²), 2x (0.75... 2.5 mm²), max. 2x (0.75... 4 mm²). Stranded: 2x (0.75... 25 mm²). AWG for main contacts: 2x (18... 2)."},{"question":"Will the 3RT1535-1AB00 drop into a panel specified around the 3RT2535-1AD00 without rewiring?","answer":"Mechanically yes — both are S2 frame size with the same DIN-rail footprint. Electrically, the coil voltage differs: 24 V 50 Hz AC on the 3RT1535-1AB00 vs 24 V DC on the 3RT2535-1AD00. If your control circuit provides 24 V AC, you can drop it in; if it provides 24 V DC, you need the 3RT2535-1AD00 or a DC-rated coil variant."},{"question":"What compliance documentation does Siemens provide for the 3RT1535-1AB00?","answer":"The substance prohibition date of 05/01/2012 indicates RoHS compliance per EU Directive 2011/65/EU. The contactor is designed to meet IEC 60947-4-1 for contactors and motor-starters. UL and CSA listings are typical for SIRIUS components but are not confirmed in this specific listing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1535-1AB00","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/3RT1535-1AB00 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}}