{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2911-4HA13","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2911-4HA13","canonicalUrl":"https://aoctrl.com/siemens/3RH2911-4HA13","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2911-4HA13","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RH2911-4HA13 auxiliary switch, snap-on mounting for contactor sizes S00, S0, S2, S3, rated 6 A at 24 V, 10 A AC-12, ring terminal lug connection.","salesMarkdown":"The Siemens 3RH2911-4HA13 is a SIRIUS auxiliary switch designed to snap onto the front of contactor relays and power contactors in frame sizes S00, S0, S2, and S3. It adds one instantaneous normally-open contact to the contactor assembly, extending the control circuit without extra panel wiring — the ring terminal lug connection matches the existing contactor termination scheme. This auxiliary switch carries a 6 A rated operational current at 24 V and 230 V, with a separate 10 A rating at 24 V for AC-12 duty (resistive loads like control transformers and indicator lamps). The AC-15 rating at 690 V is 1 A — that's the inductive load curve for solenoid valves and contactor coils, so it handles the inrush without welding contacts. At 400 V the switch is good for 3 A, enough for most 400 V control circuits in European panels. The 6 kV rated surge voltage means it withstands switching transients on long control cable runs without flashover. Snaps onto the front of the contactor — no DIN rail or screws needed, which saves panel space and wiring time. ## Contact reliability and mirror contact feature The switch is a mirror contact per IEC 60947-4-1 when paired with a 3RT2 contactor, meaning the NO contact mechanically mirrors the main contact position for safety-related feedback circuits.","metaTitle":"Siemens 3RH2911-4HA13 SIRIUS Auxiliary Switch, 6 A at 24 V","metaDescription":"Siemens SIRIUS 3RH2911-4HA13 auxiliary switch. Snap-on for S00-S3 contactors. Rated 6 A at 24 V, 10 A AC-12. Current production. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"43.7 mm","Width":"36 mm","title":"3RH2911-4HA13","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","description":"auxiliary switch, on the front, 1 NO + 3 NC,.1/.2,.1/.2,.1/.2,.3/.4, current path: 1 NC, 1 NC, 1 NC, 1 NO, ring cable lug connection, for contactors 3RT2 and contactor relays 3RH2","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, S0, S2, S3","Product Brand Name":"SIRIUS","Product Designation":"auxiliary switch","Suitability For Use":"Contactor relay and power contactor","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":"for snapping onto the front","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":"Yes; with 3RT2","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a2c075f7f189cab174116b92aa80d4ed.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=256850&mlfb=3RH2911-4HA13"},"ai":{"faq":[{"question":"Where can I buy 3RH2911-4HA13 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is 3RH2911-4HA13's listed depth?","answer":"The depth is 43.7 mm, width 36 mm, height 37.5 mm."},{"question":"What contactor sizes does 3RH2911-4HA13 fit?","answer":"It snaps onto the front of SIRIUS contactors in frame sizes S00, S0, S2, and S3."},{"question":"What compliance documentation does this part carry?","answer":"The substance prohibition date is 10/01/2009, aligning with RoHS and REACH substance restrictions. The mirror contact function complies with IEC 60947-4-1."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2911-4HA13","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/3RH2911-4HA13 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}}