{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2926-3AP31","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2926-3AP31","canonicalUrl":"https://aoctrl.com/siemens/3RT2926-3AP31","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2926-3AP31","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, mechanical latch, 3RT2926-3AP31, 230 V AC/DC, for S0 contactors 3RT202/3RT232/3RT252, screw terminals, clip-on DIN rail.","salesMarkdown":"The Siemens SIRIUS 3RT2926-3AP31 is a mechanical latch designed to hold S0-frame contactors (3RT202, 3RT232, 3RT252 series) in the closed position without continuous coil power — it's the part that keeps a motor or load engaged through a voltage dip or during a controlled stop sequence, without drawing coil current. The latch clips onto the contactor's front via the standard S0 snap-on interface (: clip-on), so it adds 22 mm width and 84.3 mm depth to the assembly — the same footprint as the contactor itself, meaning no extra DIN-rail space beyond the contactor's own width. ## Integration — panel and wiring fit Wiring uses screw-type terminals accepting 2x (0.5 to 2.5 mm²) solid or 1x 4 mm² solid, or 2x (0.5 to 2.5 mm²) finely stranded with ferrule. For AWG, that's 2x 14 or 1x 12. The terminals are sized for the auxiliary control circuit only — the latch carries no main power contacts (: zero NO/NC auxiliary contacts). RoHS compliance date is marked as 10/01/2009, indicating the part meets the EU RoHS directive's substance restrictions from that date forward.","metaTitle":"Siemens 3RT2926-3AP31 SIRIUS Mechanical Latch, 230 V AC/DC,","metaDescription":"Siemens SIRIUS mechanical latch for 3RT202/3RT232/3RT252 contactors. 230 V AC/DC coil, clip-on DIN rail, IP20 front. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"84.3 mm","Solid":"2x (0.5 ... 2.5 mm²), 1x 4 mm²","Width":"22 mm","Height":"48.4 mm","at 50 Hz":"0.85 ... 1.1","at 60 Hz":"0.85 ... 1.1","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","Initial Value":"0.85","During Storage":"-50 ... +80 °C","Leading Contact":"0","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"clip-on","Full-Scale Value":"1.1","Lagging Switching":"0","Mounting Position":"any","Size Of Contactor":"S0","Solid Or Stranded":"0.5 ... 4 mm²","Product Brand Name":"SIRIUS","Product Designation":"mechanical latch","at 50 Hz rated value":"230 V","at 60 Hz rated value":"230 V","Instantaneous Contact":"0","Substance Prohibitance (Date)":"10/01/2009","protection class IP on the front":"IP20","Surge Voltage Resistance Rated Value":"4 kV","for AWG cables for auxiliary contacts":"2x 14, 1x 12","Finely Stranded With Core End Processing":"2x (0.5 ... 2.5 mm²), 1x 2.5 mm²","control supply voltage 1 at DC rated value":"230 V","power loss [W] of magnet coil at DC typical":"4 W","number of NC contacts for auxiliary contacts":"0","number of NO contacts for auxiliary contacts":"0","Type Of Voltage Of The Control Supply Voltage":"AC/DC","power loss [V∙A] of magnet coil at AC typical":"4 VA","Type Of Electrical Connection For Auxiliary And Control Circuit":"screw-type terminals","insulation voltage with degree of pollution 3 at AC rated value":"300 V","AWG number as coded connectable conductor cross section for auxiliary contacts":"14 ... 12"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$38.10","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/44a4619f4463bd315acce481fb5f53c0.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=501739&mlfb=3RT2926-3AP31","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2926-3AP31/alternatives.json"},"ai":{"faq":[{"question":"What contactors does the 3RT2926-3AP31 fit?","answer":"It fits S0-frame Siemens SIRIUS contactors 3RT202, 3RT232, and 3RT252. The latch clips onto the front of the contactor without additional DIN-rail space."},{"question":"What is the control voltage for 3RT2926-3AP31?","answer":"230 V AC/DC. The coil accepts both AC and DC at the same voltage, with a tolerance of 0.85 to 1.1 times rated (195.5 V to 253 V)."},{"question":"Where can I buy 3RT2926-3AP31?","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":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2926-3AP31","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/3RT2926-3AP31 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}}