{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2035-3NB34-3MA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2035-3NB34-3MA0","canonicalUrl":"https://aoctrl.com/siemens/3RT2035-3NB34-3MA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2035-3NB34-3MA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S2 power contactor, 3RT2035-3NB34-3MA0, 20-33 VDC coil, spring-type terminals, screw & snap-on 35 mm DIN rail, 114 x 55 x 178 mm.","salesMarkdown":"## Siemens SIRIUS 3RT2035-3NB34-3MA0 – Power Contactor, Size S2, 20-33 VDC Coil The Siemens SIRIUS 3RT2035-3NB34-3MA0 is a size S2 power contactor with a 20-33 VDC coil and spring-type terminals, designed for screw and snap-on mounting onto 35 mm DIN rail per DIN EN 60715. Its 114 mm height, 55 mm width, and 178 mm depth fit standard panel layouts, with clearance requirements of 10 mm upwards, forwards, and downwards, and 6 mm at the side. Rated for 10 million mechanical operations typical, it handles AC-1 loads at up to 1,200 switching cycles per hour, AC-3 at 1,000 per hour, and AC-4 at 300 per hour. The 20-33 VDC coil pulls 3 A peak inrush; at 24 V rated value that's 6 A, dropping to 2 A at 48 V and 60 V, 1 A at 110 V, and 0.9 A at 125 V. Pickup is at 0.8 times rated voltage, dropout at 1.1 times – so on a 24 VDC supply the contactor picks up around 19.2 V and drops out around 26.4 V. Spring-type terminals accept 2 x (0.5 to 2.5 mm²) solid or stranded wire – no ring lugs needed, which speeds wiring in high-density panels. ## Mounting & Clearance – DIN Rail Fit Mounts via screw and snap-on onto 35 mm DIN rail per DIN EN 60715; the mounting position allows ±180° rotation on a vertical surface and ±22.5° tilt forward/backward. Main contacts are configured 18...1 (likely 3 NO + 1 NC or similar), and there is no auxiliary switch block included – plan for a separate auxiliary contactor or add-on block if needed. ## Lifecycle & Sourcing – Current Production, Sourced to Order","metaTitle":"Siemens 3RT2035-3NB34-3MA0 SIRIUS Contactor, S2, 20-33 VDC,","metaDescription":"Siemens SIRIUS 3RT2035-3NB34-3MA0 power contactor, size S2, 20-33 VDC coil, spring-type terminals, screw & snap-on DIN rail. Current production. Sourced to order. RFQ for price & a","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"178 mm","Width":"55 mm","at AC":"30 ... 55 ms","at DC":"30 ... 55 ms","Height":"114 mm","Upwards":"10 mm","Forwards":"10 mm","at 50 Hz":"2 VA","at 60 Hz":"2 VA","Downwards":"10 mm","Arcing Time":"10 ... 20 ms","At The Side":"6 mm","Rated Value":"20 ... 33 V","Initial Value":"0.8","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Spring-type terminals","at AC-1 maximum":"1 200 1/h","at AC-2 maximum":"750 1/h","at AC-3 maximum":"1 000 1/h","at AC-4 maximum":"300 1/h","lifecycle_stage":"current","Auxiliary Switch":"No","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715","Full-Scale Value":"1.1","at AC-3e maximum":"1 000 1/h","For Main Contacts":"18 ... 1","Mounting Position":"+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface","Size Of Contactor":"S2","Solid Or Stranded":"2x (0.5 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Inrush Current Peak":"3 A","Product Designation":"Power contactor","at 24 V rated value":"6 A","at 48 V rated value":"2 A","at 60 V rated value":"2 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"1 A","at 125 V rated value":"0.9 A","at 220 V rated value":"0.3 A","at 230 V rated value":"7.5 hp","at 400 V rated value":"3 A","at 440 V rated value":"0.6 A","at 480 V rated value":"40 A","at 50 Hz rated value":"20 ... 33 V","at 500 V rated value":"2 A","at 60 Hz rated value":"20 ... 33 V","at 600 V rated value":"41 A","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","For Auxiliary Contacts":"20 ... 14","For Main Current Circuit":"screw-type terminals","at 110/120 V rated value":"3 hp","at 200/208 V rated value":"10 hp","at 220/230 V rated value":"15 hp","at 460/480 V rated value":"30 hp","at 575/600 V rated value":"40 hp","Locked-Rotor Current Peak":"2.6 A","Relative Humidity Minimum":"10 %","Holding Current Mean Value":"40 mA","Of Main Circuit Rated Value":"6 kV","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"6.6 W","at AC-2 at 400 V rated value":"18.5 kW","at AC-3e rated value maximum":"690 V","at AC-4 at 400 V rated value":"35 A","safety-related switching OFF":"Yes","Substance Prohibitance (Date)":"10/01/2014","Design Of The Surge Suppressor":"with varistor","Duration Of Inrush Current Peak":"50 µs","Locked-Rotor Current Mean Value":"1 A","Duration Of Locked-Rotor Current":"230 ms","Of Auxiliary Circuit Rated Value":"6 kV","at AC-5a up to 690 V rated value":"52.8 A","at AC-5b up to 400 V rated value":"33.2 A","For Auxiliary And Control Circuit":"spring-loaded terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 80A (690V,100kA), aM: 50A (690V,100kA), BS88: 63A (415V,80kA)","Without Load Current Share Typical":"2 W","closing power of magnet coil at DC":"23 W","holding power of magnet coil at DC":"1 W","At Contactor For Auxiliary Contacts":"Spring-type terminals","With Type Of Coordination 1 Required":"gG: 160 A (690 V, 100 kA), aM: 80 A (690 V, 100 kA), BS88: 125 A (415 V, 80 kA)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"2.2 W","for AWG cables for auxiliary contacts":"2x (20 ... 14)","number of NO contacts for main contacts":"3","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","mirror contact according to IEC 60947-4-1":"Yes","with low demand rate according to SN 31920":"40 %","Finely Stranded Without Core End Processing":"2x (0.5 ... 2.5 mm²)","with high demand rate according to SN 31920":"73 %","Type Of Voltage Of The Control Supply Voltage":"AC/DC","Limited To 1 S Switching At Zero Current Maximum":"843 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"596 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"400 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"241 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"196 A; Use minimum cross-section acc. to AC-1 rated value","contact rating of auxiliary contacts according to UL":"A600 / Q600","Of Main Circuit With Degree Of Pollution 3 Rated Value":"690 V","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","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":"gG: 10 A (500 V, 1 kA)","minimum cross-section in main circuit at maximum AC-1 rated value":"16 mm²","number of NC contacts for auxiliary contacts instantaneous contact":"2","number of NO contacts for auxiliary contacts instantaneous contact":"2","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=173761&mlfb=3RT2035-3NB34-3MA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2035-3NB34-3MA0/alternatives.json"},"ai":{"faq":[{"question":"What are the key dimensions of 3RT2035-3NB34-3MA0?","answer":"Height 114 mm, width 55 mm, depth 178 mm."},{"question":"What clearance is needed around this contactor?","answer":"10 mm upwards, forwards, and downwards; 6 mm at the side."},{"question":"Does this contactor include an auxiliary switch?","answer":"No, the auxiliary switch is listed as 'No' – you will need a separate add-on block if auxiliary contacts are required."},{"question":"What compliance documentation does Siemens provide for 3RT2035-3NB34-3MA0?","answer":"The evidence does not list specific certifications, but as a SIRIUS product it typically carries UL, CSA, CE, and IEC compliance; confirm with the manufacturer or your distributor for the exact declaration pack."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2035-3NB34-3MA0","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/3RT2035-3NB34-3MA0 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}}