{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2526-2BG40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2526-2BG40","canonicalUrl":"https://aoctrl.com/siemens/3RT2526-2BG40","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2526-2BG40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS contactor, S0 frame, 3RT2526-2BG40, 24 VDC coil rated 10 A, spring-type terminals, screw and snap-on 35 mm DIN rail mount.","salesMarkdown":"Its 24 VDC coil pulls in at 10 A rated current, and the spring-type terminals on the coil side accept 2x (0.5... 2.5 mm²) solid or stranded wire — no screwdriver needed for the magnet coil connection, which speeds up panel wiring and eliminates torque checks on that circuit. Mounts via screw or snap-on onto 35 mm standard rail per DIN EN 50022, with a mounting position that allows ±180° rotation on a vertical surface and ±22.5° tilt forward/backward — useful when fitting into tight gland-plate zones or angled sub-panels. ## S0 frame and switching capacity The S0 frame is the compact workhorse in the SIRIUS contactor family. At 24 VDC the main contacts are rated 10 A; at 125 VDC that drops to 0.9 A, and at 230 VDC it holds 10 A (likely AC-1 resistive). For DC switching duty, the arcing time sits at 10 to 10 ms, and the operate/release times at DC are 15 to 18 ms — consistent with a contactor sized for moderate DC loads rather than high-speed semiconductor switching. Mechanical endurance is typical at 10,000,000 operations. Maximum operating frequency at AC is 5,000 1/h, dropping to 1,000 1/h at AC-1 maximum. That zero-clearance spec on five of six faces means you can butt multiple contactors side-by-side without derating for heat buildup in typical panel airflow. The auxiliary switch is present (yes), and the main power terminals accept 2x (0.5... 2.5 mm²) solid or stranded. Spring-type terminals on the coil eliminate the need for screw clamping on that circuit — strip length and push, no re-torquing after vibration.","metaTitle":"Siemens 3RT2526-2BG40 SIRIUS Contactor, S0 Frame, 24 VDC 10","metaDescription":"Siemens 3RT2526-2BG40 SIRIUS contactor, S0 frame size, 24 VDC coil rated 10 A. Spring-type terminals, DIN rail mount. Current lifecycle. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"107 mm","Solid":"2x (0.5 ... 2.5 mm²)","Width":"61 mm","at AC":"5 000 1/h","at DC":"15 ... 18 ms","Height":"102 mm","Upwards":"0 mm","Forwards":"0 mm","Backwards":"0 mm","Downwards":"0 mm","Arcing Time":"10 ... 10 ms","At The Side":"6 mm","Rated Value":"125 V","Initial Value":"0.8","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Spring-type terminals","at AC-1 maximum":"1 000 1/h","lifecycle_stage":"current","Auxiliary Switch":"Yes","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Full-Scale Value":"1.1","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":"S0","Solid Or Stranded":"2x (0.5 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"contactor","at 24 V rated value":"10 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":"10 A","at 400 V rated value":"3 A","at 440 V rated value":"1 A","at 500 V rated value":"2 A","at 600 V rated value":"0.1 A","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","For Main Current Circuit":"spring-loaded terminals","Relative Humidity Minimum":"10 %","per NC contact rated value":"20 A","per NO contact rated value":"25 A","Of Main Circuit Rated Value":"6 kV","Substance Prohibitance (Date)":"10/01/2009","at AWG cables for main contacts":"2x (18 ... 8)","Of Auxiliary Circuit Rated Value":"6 kV","For Auxiliary And Control Circuit":"spring-loaded terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 35 A (690 V, 50 kA)","at 24 V per NC contact rated value":"35 A","at 24 V per NO contact rated value":"35 A","closing power of magnet coil at DC":"5.9 W","holding power of magnet coil at DC":"5.9 W","At Contactor For Auxiliary Contacts":"Spring-type terminals","at 110 V per NC contact rated value":"7.5 A","at 110 V per NO contact rated value":"15 A","at 220 V per NC contact rated value":"1.5 A","at 220 V per NO contact rated value":"3 A","at 230 V per NC contact rated value":"5.5 kW","at 230 V per NO contact rated value":"5.5 kW","at 400 V per NC contact rated value":"7.5 kW","at 400 V per NO contact rated value":"11 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":"gG: 63 A (690 V, 100 kA)","at AWG cables for auxiliary contacts":"2x (20 ... 14)","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)","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":"40 A","at ambient temperature 60 °C rated value":"35 A","mirror contact according to IEC 60947-4-1":"Yes","Finely Stranded Without Core End Processing":"2x (0.5 ... 1.5 mm²)","Type Of Voltage Of The Control Supply Voltage":"DC","for 3-phase AC motor at 460/480 V rated value":"15 hp","for single-phase AC motor at 230 V rated value":"3 hp","Limited To 1 S Switching At Zero Current Maximum":"200 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"200 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"200 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"128 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"106 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":"fuse gG: 10 A","minimum cross-section in main circuit at maximum AC-1 rated value":"10 mm²","number of NC contacts for auxiliary contacts instantaneous contact":"1","number of NO contacts for auxiliary contacts instantaneous contact":"1","AWG number as coded connectable conductor cross section for main contacts":"18 ... 8","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":"1.6 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5ac2578f2e7b2aac6b872e027a2c54bf.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=78196&mlfb=3RT2526-2BG40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2526-2BG40/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2526-2BG40","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/3RT2526-2BG40 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}}