{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2911-2GA13","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2911-2GA13","canonicalUrl":"https://aoctrl.com/siemens/3RH2911-2GA13","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2911-2GA13","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RH2911-2GA13 auxiliary switch, S00 size, 1 NO instantaneous contact, snap-on mounting, IP20 front protection.","salesMarkdown":"It carries one normally-open instantaneous contact — no leading or lagging function, just a straight NO mirror of the main contactor position. Snap-on mounts directly onto the front of a 3RH2140 or 3RH2440 auxiliary switch block, which itself snaps onto the contactor relay. The contact ratings are given as two separate tables: a \"switching current\" column and a \"rated value\" column. The switching current table covers the range of voltages you'd see in control circuits — 6 A at 24 V, 2 A at 48 V, 2 A at 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, 6 A at 230 V, 0.3 A at 250 V, and 3 A at 400 V. The rated-value table gives the continuous thermal current (Ith) at the same voltages: 10 A at 24 V, 4.7 A at 60 V, 3 A at 110 V, 1.2 A at 220 V, 0.5 A at 440 V, and 0.26 A at 600 V. For a 24 VDC PLC output driving a contactor coil, the 6 A switching current is well above what a typical 24 VDC coil draws (usually 2-5 A inrush, <1 A sealed). The 400 V switching rating (3 A) means this block can handle pilot-duty switching on 400 VAC control transformers without welding the contacts. ## Mechanical fit and mounting Dimensions are 36 mm wide, 41.5 mm tall, 47.7 mm deep — a compact block that adds minimal width to the contactor relay stack. Snap-on mounting means no tools for installation; it clips onto the front of the base auxiliary switch block. The IP20 front protection keeps fingers away from live terminals but does not tolerate washdown — this is a dry-panel component only. ## Wiring and contact reliability Terminals accept 2x (0.5 to 2.5 mm²) solid or stranded wire, or 2x (20 to 14 AWG). For finely stranded wire with ferrules, the range is 2x (0.5 to 1.5 mm²). This block does NOT have mirror contacts per IEC 60947-4-1, so it cannot be used as a feedback contact in a safety circuit that requires mirror-contact integrity.","metaTitle":"Siemens 3RH2911-2GA13 SIRIUS Auxiliary Switch, S00, 1 NO","metaDescription":"Siemens SIRIUS 3RH2911-2GA13 auxiliary switch for S00 contactor relays. 1 NO instantaneous contact, snap-on mounting, IP20 front. Rated 6 A at 24 V. Current production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"47.7 mm","Width":"36 mm","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","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":"1","Substance Prohibitance (Date)":"10/01/2009","protection class IP on the front":"IP20","Surge Voltage Resistance Rated Value":"6 kV","for 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":"$7.21","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=92069&mlfb=3RH2911-2GA13","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH2911-2GA13/alternatives.json"},"ai":{"faq":[{"question":"What are the key switching ratings for the 3RH2911-2GA13?","answer":"Switching current ranges from 6 A at 24 V down to 0.3 A at 250 V, with a 3 A rating at 400 V. The continuous rated current (Ith) is 10 A at 24 V, tapering to 0.26 A at 600 V."},{"question":"What is the physical size of this auxiliary switch?","answer":"Width is 36 mm, height 41.5 mm, depth 47.7 mm. It snaps onto the front of a 3RH2140 or 3RH2440 auxiliary switch block."},{"question":"Can I use this as a safety feedback contact?","answer":"No. This block does not have mirror contacts per IEC 60947-4-1, so it cannot be used as a feedback contact in a safety circuit that requires mirror-contact integrity."},{"question":"What compliance documentation is available for this part?","answer":"The part carries a substance prohibition date of 10/01/2009, indicating RoHS compliance. The SIRIUS series typically includes CE, UL, and CSA certifications, though specific agency marks for this order code are not listed in the record."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2911-2GA13","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/3RH2911-2GA13 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}}