{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU2926-3AC01","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU2926-3AC01","canonicalUrl":"https://aoctrl.com/siemens/3RU2926-3AC01","factsUrl":"https://aoctrl.com/api/mcp/products/3RU2926-3AC01","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS overload relay, Size S0, 3RU2926-3AC01, stand-alone assembly support, spring-loaded terminals for main circuit, screw and snap-on mounting onto 35 mm DIN rail.","salesMarkdown":"The main circuit uses spring-loaded terminals, so no screwdriver torque check on the power wires; the auxiliary circuit is left unwired (no auxiliary terminal block fitted). This is the mounting frame and terminal carrier for the thermal overload relay family (3RU21 / 3RB30 / 3RB31 / 3RR2) in Size S0, letting you install the relay separately from the contactor when panel layout or thermal separation demands it. ## DIN-rail fit and wiring constraints At 45 mm wide and 114 mm tall, it occupies one standard 45 mm module slot. The 76 mm depth is the key clearance dimension: verify that the gland plate or enclosure door clears this when the relay is mounted on a DIN rail close to the back wall. Wire entry accepts 1x solid conductor from 1 to 10 mm² (AWG 18 to 8) and 1x stranded from 1 to 10 mm²; finely stranded with ferrule runs 1 to 6 mm². That covers most motor-circuit power tails up to about 25 A. ## Operating environment range Rated for -20 to +70 °C during operation and -50 to +80 °C during storage. No derating curve is listed here, but the 70 °C operating ceiling is typical for SIRIUS overloads in panel-mounted applications.","metaTitle":"Siemens 3RU2926-3AC01 SIRIUS Overload Relay, Size S0, Spring","metaDescription":"Siemens SIRIUS 3RU2926-3AC01 Size S0 overload relay. Active production. Spring-loaded terminals, DIN rail mount. 45 mm wide, 76 mm deep. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Overload Relays"],"specifications":{"Depth":"76 mm","Solid":"1x (1 ... 10 mm²)","Width":"45 mm","title":"3RU2926-3AC01","Height":"114 mm","Stranded":"1x (1 ... 10 mm²)","description":"stand-alone assembly support for 3RU21/3RB30/3RB31/3RR2 Size S0 Stand-alone installation Main circuit: Spring-type terminal Auxiliary circuit: --","During Storage":"-50 ... +80 °C","lifecycle_stage":"current","During Operation":"-20 ... +70 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail","Product Brand Name":"SIRIUS","Product Designation":"individual mount","Size Of Overload Relay":"S0","For Main Current Circuit":"spring-loaded terminals","Substance Prohibitance (Date)":"10/01/2009","at AWG cables for main contacts":"1x (18 ... 8)","Finely Stranded With Core End Processing":"1 ... 6 mm²"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.59","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b698394dd5a7d9b9d68d10318163bec3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=360785&mlfb=3RU2926-3AC01"},"ai":{"faq":[{"question":"What is the depth of 3RU2926-3AC01?","answer":"76 mm. That is the dimension from the DIN-rail backplane to the front of the housing — the critical clearance for enclosure depth."},{"question":"What wire sizes does the 3RU2926-3AC01 accept on the main circuit?","answer":"Solid conductors 1x 1 to 10 mm² (AWG 18 to 8) and stranded conductors 1x 1 to 10 mm². Finely stranded with ferrule: 1 to 6 mm²."},{"question":"Where can I buy 3RU2926-3AC01?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU2926-3AC01","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/3RU2926-3AC01 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}