{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2911-4GA13","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2911-4GA13","canonicalUrl":"https://aoctrl.com/siemens/3RH2911-4GA13","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2911-4GA13","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch, S00 size, 1 NO instantaneous contact, snap-on mounting, ring terminal lug connection, IP00 front protection.","salesMarkdown":"It snaps onto the front of a 3RH2140 or 3RH2440 auxiliary switch base, adding one normally open instantaneous contact to the assembly. The ring terminal lug connection means you're landing field wiring under screw terminals with ring lugs — common in North American panel practice where spade terminals aren't trusted under vibration. Rated for 10 A at AC-12 (resistive loads) and 1 A at AC-15 at 690 V (solenoid/contactor coil loads), the contact reliability spec is one faulty switching per 100 million operations at 17 V, 1 mA — that's dry-circuit territory, meaning it handles PLC-level signals without needing gold plating. Snap-on mounting onto the S00 contactor relay front — no tools, no DIN rail. The 36 mm width matches the S00 footprint, so it doesn't steal panel space beyond the contactor's own width. Dimensions are 43.7 mm deep by 36 mm wide by 37.5 mm tall. The 6 kV rated surge voltage resistance (impulse withstand) means it's coordinated for 400 V industrial environments where switching transients are the norm. The auxiliary contact carries 6 A at 24 V, 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V and 250 V, and 3 A at 400 V. These are thermal current ratings for the contact block itself — the actual switching capacity depends on the load type (AC-12, AC-15, DC). The 10 A AC-12 figure is the maximum thermal current; the AC-15 rating at 690 V drops to 1 A because inductive loads with inrush stress the contacts harder. For DC switching, the ratings are 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. DC arcs are harder to extinguish than AC, so the derating is steep as voltage climbs. If you're switching a DC solenoid at 110 V, stay under 3 A.","metaTitle":"Siemens 3RH2911-4GA13 SIRIUS Auxiliary Switch, S00, 1 NO","metaDescription":"Siemens SIRIUS 3RH2911-4GA13 auxiliary switch for S00 contactor relays. Snap-on mounting, ring terminal connection. Rated 10 A AC-12, 1 A at 690 V AC-15. Current lifecycle stage.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"43.7 mm","Width":"36 mm","Height":"37.5 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","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":"IP00","Surge Voltage Resistance Rated Value":"6 kV","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","mirror contact according to IEC 60947-4-1":"No","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":"ring terminal lug connection","insulation voltage with degree of pollution 3 at AC rated value":"690 V","number of CO contacts of auxiliary contacts instantaneous contact":"0"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/4321ea71ed3e62a6087707a80fa9bf36.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=37353&mlfb=3RH2911-4GA13","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH2911-4GA13/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does this part carry?","answer":"The substance prohibition date of 10/01/2009 indicates RoHS compliance. The part is designed to IEC 60947 standards for auxiliary contacts. It is not a mirror contact per IEC 60947-4-1."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2911-4GA13","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/3RH2911-4GA13 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}}