{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2926-2PR11","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2926-2PR11","canonicalUrl":"https://aoctrl.com/siemens/3RT2926-2PR11","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2926-2PR11","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2926-2PR11 pneumatic off-delay block, adjustable 1…60 s, 1 NO + 1 NC, for motor contactors size S0, IP20 finger-safe, screw terminals.","salesMarkdown":"The Siemens 3RT2926-2PR11 is a pneumatic off-delay block from the SIRIUS family, designed to clip onto size S0 motor contactors. It provides an adjustable delay of 1 to 60 seconds after the contactor coil is de-energized, keeping the auxiliary contacts in their energized state for that period before they drop out. This is useful for sequenced shutdowns, pump-down cycles, or staging delays where equipment needs to run on after the stop command. The block switches one normally-open and one normally-closed auxiliary contact, rated at 10 A maximum in AC-12 duty. Switching capacity varies by voltage: 4 A at 24 V, 2 A at 48 V, 0.7 A at 110 V, 0.3 A at 220 V, 6 A at 230 V, 4 A at 400 V, 0.1 A at 440 V, 2.5 A at 500 V, and 1.5 A at 690 V. The 440 V figure (0.1 A) is a sharp derating point — if your control circuit runs at that voltage, the contact can only handle a pilot-duty signal, not a real load. This block clips directly onto the front of a SIRIUS S0 contactor — no tools, no DIN rail space consumed beyond the contactor itself. The assembled height is 44.6 mm, width 45 mm, depth 83.5 mm. Front protection is IP20 with finger-safe touch protection per the standard. Short-circuit protection for the auxiliary contacts requires a 10 A gG fuse at 1 kA prospective short-circuit current per IEC 60947-5-1.","metaTitle":"Siemens 3RT2926-2PR11 SIRIUS Pneumatic Off-Delay Block, 1-60","metaDescription":"Siemens 3RT2926-2PR11 SIRIUS pneumatic off-delay block for S0 contactors. Adjustable 1-60s, 1NO+1NC, IP20. Phased out; successor 3RT2927-2PR11. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"83.5mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Width":"45mm","Height":"44.6mm","at 24 V":"4A","at 48 V":"2A","at 110 V":"0.7A","at 220 V":"0.3A","at 230 V":"6A","at 400 V":"4A","at 440 V":"0.1A","at 500 V":"2.5A","at 690 V":"1.5A","During Storage":"-50 ... +80°C","lifecycle_stage":"current","During Operation":"-25 ... +60°C","Fastening Method":"clip-on","at AC-12 maximum":"10A","Mounting Position":"any","Size Of Contactor":"S0","Product Brand Name":"SIRIUS","Product Designation":"pneumatic delay block","at 500 V rated value":"2.5A","at 690 V rated value":"1.5A","Design Of The Product":"off delay","with 3RT2.2 contactor":"5 000 000","With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","adjustable OFF-delay time":"1 ... 60s","protection class IP on the front":"IP20","at AWG cables for auxiliary contacts":"2x (18 ... 14), 2x (20 ... 16)","Touch Protection Against Electrical Shock":"finger-safe","Mechanical Service Life (Switching Cycles) Typical":"5 000 000","Type Of Electrical Connection For Auxiliary And Control Circuit":"screw-type terminals","insulation voltage with degree of pollution 3 at AC rated value":"690V","Relative Accuracy Of The Operating Delay Time/Backslide Delay Time":"10%","Design Of The Fuse Link For Short-Circuit Protection Of The Auxiliary Switch Required":"Fuse gG 10 A with short-circuit current Ik = 1 kA according to IEC 60947-5-1"}},"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=157487&mlfb=3RT2926-2PR11","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2926-2PR11/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional replacement if I cannot find the 3RT2926-2PR11?","answer":"The official Siemens successor is 3RT2927-2PR11 — same S0 clip-on footprint, same pneumatic off-delay function, same 1-60 s adjustable range and 1 NO + 1 NC contact arrangement. The 3RT1015-1BB42 is a power contactor, not a delay block, so it is not a functional substitute."},{"question":"What wire sizes does the screw terminal accept?","answer":"Each clamp accepts two conductors: 0.5 to 1.5 mm² solid or 0.75 to 2.5 mm² solid (AWG 20-16 and 18-14)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2926-2PR11","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/3RT2926-2PR11 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}}