{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2911-2HA13-0KT0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2911-2HA13-0KT0","canonicalUrl":"https://aoctrl.com/siemens/3RH2911-2HA13-0KT0","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2911-2HA13-0KT0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch block, 1 NO + 3 NC, 10 A max, spring-loaded terminals, snap-on mounting for 3RT2/3RH2 contactors.","salesMarkdown":"The Siemens 3RH2911-2HA13-0KT0 is a front-mounted auxiliary switch block for the SIRIUS family, designed to snap onto 3RT2 power contactors and 3RH2 contactor relays. It provides one normally-open and three normally-closed auxiliary contacts, wired out to terminals 31/32, 41/42, 51/52, and 63/64 respectively. Rated for a maximum of 10 A, the contacts carry AC-15 pilot-duty loads at 690 V up to 1 A, and switch DC control circuits at various voltages — 6 A at 24 V, 4.7 A at 60 V, 3 A at 110 V, 1.2 A at 220 V, and 0.26 A at 600 V. The AC-15 rating at 690 V (1 A) is the relevant figure for switching contactor coils or solenoid valves in a 400/690 V panel. Mechanical life is rated for 10 million switching cycles typical. The spring-loaded terminals accept 2x (0.5 to 1.5 mm²) with ferruled ends, or 2x (0.5 to 2.5 mm²) without core-end processing; AWG equivalents are 2x (20 to 14). ## Ratings in context The 6 kV surge voltage resistance (rated value) and insulation voltage of 690 V at pollution degree 3 mean this block is suitable for 400 V line-to-line panels with a 600 V impulse-withstand requirement — typical for IEC 60947-5-1 auxiliary contact applications.","metaTitle":"Siemens 3RH2911-2HA13-0KT0 SIRIUS Auxiliary Switch, 1NO+3NC,","metaDescription":"Siemens 3RH2911-2HA13-0KT0 SIRIUS auxiliary switch block, 1 NO + 3 NC contacts, rated 10 A maximum. Spring-loaded terminals, snap-on mounting for 3RT2/3RH2 contactors. Sourced to o","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Note":"with 3RH2","Depth":"47.7 mm","Width":"36 mm","Height":"41.5 mm","Maximum":"10 A","at 24 V":"6 A","at 60 V":"2 A","at 110 V":"1 A","at 125 V":"6 A","at 220 V":"0.3 A","at 230 V":"6 A","at 250 V":"6 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","Lagging Switching":"0","Product Brand Name":"SIRIUS","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","Instantaneous Contact":"1","With Core End Processing":"2x (0.5 ... 1.5 mm²)","Without Core End Processing":"2x (0.5 ... 2.5 mm²)","at AC-15 at 690 V rated value":"1 A","protection class IP on the front":"IP20","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (20 ... 14)","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Mechanical Service Life (Switching Cycles) Typical":"10 000 000","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"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/17d7f95ea63584269162ea1ded4b322f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=811828&mlfb=3RH2911-2HA13-0KT0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH2911-2HA13-0KT0/alternatives.json"},"ai":{"faq":[{"question":"What is the contact configuration of 3RH2911-2HA13-0KT0?","answer":"It provides one normally-open (NO) and three normally-closed (NC) auxiliary contacts, wired to terminals 31/32, 41/42, 51/52, and 63/64."},{"question":"What wire sizes does the spring-loaded terminal accept?","answer":"The terminal accepts 2x (0.5 to 1.5 mm²) with ferruled ends, or 2x (0.5 to 2.5 mm²) without core-end processing. AWG equivalents are 2x (20 to 14)."},{"question":"What is the mechanical life rating for this auxiliary switch?","answer":"Mechanical service life is rated at 10 million switching cycles typical."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2911-2HA13-0KT0","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/3RH2911-2HA13-0KT0 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}}