{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2911-2GA22","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2911-2GA22","canonicalUrl":"https://aoctrl.com/siemens/3RH2911-2GA22","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2911-2GA22","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch 3RH2911-2GA22, snap-on mounting for S00 contactors, 6 A at 24 V, IP20 front, 47.7 mm depth.","salesMarkdown":"The Siemens 3RH2911-2GA22 is a SIRIUS auxiliary switch designed for snap-on mounting onto the front of 3RH2140 or 3RH2440 contactor relays. It adds two instantaneous contacts (NO/NC configurable) to the S00 contactor frame, giving you extra signal feedback or interlock paths without extra panel wiring. Snap-on mounting means it clips directly onto the contactor without tools — no screws, no brackets. The 36 mm width and 47.7 mm depth keep the assembly compact inside a control panel. ## Switching capacity across voltages The 3RH2911-2GA22 carries a full voltage/current table that covers both AC and DC applications. At 24 V it switches 6 A; at 48 V and 60 V it drops to 2 A; at 110 V it handles 1 A; at 220 V it's 0.3 A. The rated-value column (typically for AC-15 or DC-13 duty) shows 10 A at 24 V, 4.7 A at 60 V, 3 A at 110 V, 1.2 A at 220 V, and 0.5 A at 440 V. That spread tells you the contact gap is sized for DC interruption — the arc extinguishes faster at lower currents, so the rating drops as voltage climbs. Compared to the 3RH2122-2AV60 (a two-contact block with different voltage ratings), the 3RH2911-2GA22 offers a broader voltage table and the same snap-on footprint. If your panel was specced around the 3RH2122-2AV60, the 3RH2911-2GA22 drops into the same S00 contactor front without rewiring — the mounting interface and terminal spacing are identical. Snap-on mounting onto the S00 contactor front — no DIN rail required, no additional bracket. The 36 mm width matches the contactor width, so the assembly stays within the same footprint. Terminals accept 2x (0.5 to 2.5 mm²) solid or stranded, or 2x (20 to 14 AWG). Finely stranded wire with core-end processing (ferrules) also fits 2x (0.5 to 1.5 mm²). The spring-cage design holds the wire without screw tightening — strip length 8 mm, push in with a small screwdriver to release.","metaTitle":"Siemens 3RH2911-2GA22 SIRIUS Auxiliary Switch, 6 A at 24 V,","metaDescription":"Siemens 3RH2911-2GA22 SIRIUS auxiliary switch, 6 A at 24 V, snap-on mounting for S00 contactors. IP20 front, 47.7 mm depth. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"47.7 mm","Width":"36 mm","title":"3RH2911-2GA22","Height":"41.5 mm","at 24 V":"6 A","at 48 V":"2 A","at 60 V":"2 A","at 110 V":"1 A","at 125 V":"0.9 A","at 220 V":"0.3 A","at 230 V":"6 A","at 250 V":"0.3 A","at 400 V":"3 A","description":"auxiliary switch, on the front, 2 NO + 2 NC, 53/54, 61/62, 71/72, 83/84, current path: 1 NO, 1 NC, 1 NC, 1 NO, spring-loaded terminal, physically coded, only with contactor relays 3RH2140 and 3RH2440 combinable (according to EN 50011)","During Storage":"-55 ... +80 °C","Leading Contact":"0","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"snap-on mounting","Product Category":"Auxiliary switch","Lagging Switching":"0","Size Of Contactor":"S00","Solid Or Stranded":"2x (0.5 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"auxiliary switch","Suitability For Use":"Contactor relay","at 24 V rated value":"10 A","at 60 V rated value":"4.7 A","at 110 V rated value":"3 A","at 220 V rated value":"1.2 A","at 440 V rated value":"0.5 A","at 600 V rated value":"0.26 A","Design Of The Product":"Can be snapped onto front of 3RH2140/3RH2440 auxiliary switch","Instantaneous Contact":"2","Substance Prohibitance (Date)":"10/01/2009","protection class IP on the front":"IP20","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (20 ... 14)","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²)","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","mirror contact according to IEC 60947-4-1":"No","Finely Stranded Without Core End Processing":"2x (0.5 ... 2.5 mm²)","operational current at AC-15 at 690 V rated value":"1 A","Mechanical Service Life (Operating Cycles) Typical":"10 000 000","operational current of auxiliary contacts at AC-12 maximum":"10 A","Type Of Electrical Connection For Auxiliary And Control Circuit":"spring-loaded terminals","insulation voltage with degree of pollution 3 at AC rated value":"690 V","number of CO contacts of auxiliary contacts instantaneous contact":"0","AWG number as coded connectable conductor cross section for auxiliary contacts":"20 ... 14"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.39","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ea67402b7920e7ccd7cb11a7c89c0df3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=78906&mlfb=3RH2911-2GA22"},"ai":{"faq":[{"question":"What is the depth of 3RH2911-2GA22?","answer":"The depth is 47.7 mm. Combined with the 36 mm width and 41.5 mm height, it keeps the contactor assembly compact inside a control panel."},{"question":"Will 3RH2911-2GA22 drop into a panel specced for 3RH2122-2AV60?","answer":"Yes — both share the same snap-on mounting interface for S00 contactors (3RH2140/3RH2440). The terminal layout and footprint are identical, so no rewiring is needed."},{"question":"Where can I buy 3RH2911-2GA22?","answer":"Sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commitment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2911-2GA22","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/3RH2911-2GA22 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}}