{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1526-1AB00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1526-1AB00","canonicalUrl":"https://aoctrl.com/siemens/3RT1526-1AB00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1526-1AB00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, S0 size, 3RT1526-1AB00, 24 V 50 Hz coil, screw terminals, IP20 front, 91 mm depth.","salesMarkdown":"It mounts on a 35 mm DIN rail per DIN EN 50022, with screw and snap-on fixing, and fits a panel footprint of 85 mm high by 61 mm wide by 91 mm deep. The coil is wound for 24 V at 50 Hz, drawing 7.8 VA at 50 Hz. At 60 Hz the power factor is 0.24, which matters if you're feeding the coil from a 60 Hz supply — the inrush and hold characteristics shift, so confirm the pickup and dropout voltages against your control transformer. The main contacts are rated 25 A per pole for both NO and NC configurations. For AC-1 the maximum switching rate is 1,000 operations per hour. The auxiliary circuit and main circuit both carry a rated impulse withstand voltage of 6 kV. ## Wiring and Mounting Reality Terminals accept solid or stranded conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or a maximum of 2x (0.75 to 4 mm²). That's per clamp, so you can double up smaller wires for daisy-chaining control circuits. The screw-type terminals are standard for the main current circuit — no cage-clamp option on this variant. That gives you options when the panel layout is tight, but keep the coil vertical for reliable dropout — horizontal mounting can shift the pickup voltage. That's fast enough for most motor starting but not for DC switching — the contactor is specified for AC circuits; DC ratings are separate and lower. Electrical life depends on the load: at rated AC-3 current expect roughly 1 million operations before contact wear requires replacement. The contacts are not user-replaceable on the S0 frame; the whole contactor is swapped when worn.","metaTitle":"Siemens 3RT1526-1AB00 SIRIUS Power Contactor, S0 Size, 24 V","metaDescription":"Siemens 3RT1526-1AB00 SIRIUS power contactor, S0 size, 24 V 50 Hz coil, screw terminals, IP20 front. Current production. Sourced to order against RFQ.","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":"7.8 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":"24 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":"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","Inductive power factor with closing power of the coil":"0.82","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":"$100.81","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=328967&mlfb=3RT1526-1AB00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1526-1AB00/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of 3RT1526-1AB00?","answer":"The depth is 91 mm from the mounting surface to the front of the contactor."},{"question":"What wire sizes does 3RT1526-1AB00 accept?","answer":"The screw terminals accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or a maximum of 2x (0.75 to 4 mm²) solid or stranded conductors per clamp."},{"question":"Will 3RT1526-1AB00 drop into a panel specified for 3RT2526-1AB00?","answer":"Yes, both are S0 frame size with the same DIN rail mounting footprint (85 x 61 x 91 mm). The physical swap is direct, but verify the auxiliary contact arrangement — the 3RT1526 generation may have a different auxiliary block than the 3RT2526 generation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1526-1AB00","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/3RT1526-1AB00 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}}