{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1526-1AL20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1526-1AL20","canonicalUrl":"https://aoctrl.com/siemens/3RT1526-1AL20","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1526-1AL20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S0, 3RT1526-1AL20, 230 V AC 50/60 Hz coil, screw-type terminals, IP20 front, snap-on DIN rail.","salesMarkdown":"## SIRIUS S0 power contactor — 3RT1526-1AL20 The coil is rated for 230 V AC at both 50 Hz and 60 Hz, drawing 8.4 VA at 50 Hz. Screw-type terminals on the main circuit accept solid or stranded wire: 2x (0.5...1.5 mm²), 2x (0.75...2.5 mm²), or max. 2x (0.75...4 mm²). Footprint is 85 mm high by 61 mm wide, 91 mm deep. That 61 mm width is the S0 standard — it occupies one 61 mm-wide slot on the DIN rail, leaving adjacent slots free for overload relays or busbars. The 6 mm side clearance is the minimum required when mounting units side-by-side; no extra gap needed between contactors. Mounting position allows vertical surface with ±180° rotation and ±30° tilt front-to-back, which covers most panel layouts except horizontal rail. The main contacts (1 NO + 1 NC) are each rated 25 A for general-purpose use. At AC-1 (resistive load) the maximum switching rate is 1,000 operations per hour. For DC switching at 24 V the contact rating is 10 A; at 60 V it drops to 2 A; at 220 V it is 0.3 A. These numbers define the contactor's capability for motor starting, heater switching, and DC control circuits — the 25 A NO/NC contacts handle the load, while the 6 kV impulse rating ensures coordination with upstream surge protection.","metaTitle":"Siemens 3RT1526-1AL20 SIRIUS Power Contactor, S0, 230V Coil","metaDescription":"Siemens 3RT1526-1AL20 SIRIUS power contactor, size S0, 230 V AC coil, screw terminals, IP20 front. Current production. Sourced to order. Request quote.","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":"61 mm","at AC":"13 ... 25 ms","Height":"85 mm","Maximum":"2 000 m","at 50 Hz":"8.4 V·A","at 60 Hz":"0.24","Arcing time":"10 ... 15 ms","At The Side":"6 mm","On The Front":"IP20","Mounting type":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","During Storage":"-55 ... +80 °C","Of The Terminal":"IP00","at AC-1 maximum":"1 000 1/h","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Mounting position":"with vertical mounting surface +/-180° rotatable, with vertical mounting surface +/- 30° tiltable to the front and back","Size of contactor":"S0","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":"230 V","at 60 Hz rated value":"230 V","Instantaneous Contact":"0","Side-by-side mounting":"Yes","For Main Current Circuit":"screw-type terminals","Single Or Multi-Stranded":"2x (0,5 ... 1,5 mm²), 2x (0,75 ... 2,5 mm²), max. 2x (0,75 ... 4 mm²)","per NC contact rated value":"25 A","per NO contact rated value":"25 A","Of Main Circuit Rated Value":"6 kV","at maximum AC-1 rated value":"10 mm²","Of Auxiliary Circuit Rated Value":"6 kV","Operating current at AC-12 maximum":"10 A","With Type Of Assignment 2 Required":"fuse gL/gG: 35 A","at 24 V per NC contact rated value":"35 A","at 24 V per NO contact rated value":"35 A","at AC at 230 V maximum permissible":"0.006 A","Protection against electrical shock":"finger-safe","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":"11 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","at AWG conductors for main contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","With Type Of Coordination 1 Required":"fuse gL/gG: 63 A","Reference code acc. to DIN EN 81346-2":"Q","Number of NC contacts for main contacts":"2","Number of NO contacts for main contacts":"2","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","at AWG conductors for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"screw-type terminals","Apparent holding power of magnet coil at AC":"8.4 V·A","Apparent pick-up power of magnet coil at AC":"64 V·A","Type of voltage of the control supply voltage":"AC","Inductive power factor with closing power of the coil":"0.72","Of Main Circuit With Degree Of Pollution 3 Rated Value":"690 V","Inductive power factor with the holding power of the coil":"0.24","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","Of The Contactor With Added Electronics-Compatible Auxiliary Switch Block Typical":"5 000 000","Power loss [W] at AC-3 at 400 V for rated value of the operating current per conductor":"1.6 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=464306&mlfb=3RT1526-1AL20","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1526-1AL20/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1526-1AL20 and how do I get a price?","answer":"This part is sourced to order through independent distribution. Submit an RFQ to confirm current availability and pricing at quote time."},{"question":"Will 3RT1526-1AL20 drop into a panel specified around 3RT1023-1AL20 without rewiring?","answer":"Both are SIRIUS S0 frame contactors with the same 85 x 61 x 91 mm footprint and screw-type terminals on the main circuit, so the mechanical fit and terminal layout are identical. The coil voltage differs — 3RT1526-1AL20 uses 230 V AC, while the 3RT1023-1AL20 uses a different coil voltage — so verify the control circuit voltage before substitution. No rewiring of the main power terminals is needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1526-1AL20","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/3RT1526-1AL20 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}}