{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2916-2DA11","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2916-2DA11","canonicalUrl":"https://aoctrl.com/siemens/3RH2916-2DA11","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2916-2DA11","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RH2916-2DA11, lateral auxiliary switch, 1 NO + 1 NC, 10 A rated, spring-loaded terminals, snap-on mounting for 3RT2 contactors and 3RH2 contactor relays.","salesMarkdown":"The Siemens 3RH2916-2DA11 is a lateral auxiliary switch block from the SIRIUS family, designed to snap onto the left side of 3RT2 contactors and 3RH2 contactor relays. It provides one normally-open (NO) and one normally-closed (NC) auxiliary contact, wired to terminals 41/42, 53/54 (NO) and 21/22, 33/34 (NC). Rated at 10 A maximum, the AC-15 switching capacity at 24 V is 10 A, dropping to 1 A at 690 V. This means it can handle pilot-duty loads like PLC inputs, relay coils, and signal lamps across a wide control voltage range — but the 690 V, 1 A figure is the limiting case for high-voltage control circuits. Snap-on mounting to the contactor profile — no tools needed for installation, but removal requires a screwdriver to depress the latch. The 10 mm width adds minimal DIN-rail real estate. Spring-loaded terminals accept 2x (0.5 to 2.5 mm²) without ferrules, or 2x (0.5 to 1.5 mm²) with core-end processing. For AWG, that's 2x (20 to 14). ## Contact reliability and service life For a PLC input or safety relay monitoring a contactor auxiliary, this matters: the contacts are rated to switch logic-level signals without intermittent opens. Mechanical service life is 1 million switching cycles typical. That's the mechanism, not the electrical endurance — under load, expect fewer cycles, especially at higher currents or inductive loads.","metaTitle":"Siemens 3RH2916-2DA11 SIRIUS Auxiliary Switch, 1NO+1NC, 10A","metaDescription":"Siemens 3RH2916-2DA11 SIRIUS lateral auxiliary switch, 1 NO + 1 NC, 10 A rated, spring-loaded terminals, for 3RT2 contactors. Current production. RFQ for pricing.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Note":"with 3RT2","Depth":"66 mm","Width":"10 mm","title":"3RH2916-2DA11","Height":"64.8 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","description":"auxiliary switch, lateral, 1 NO + 1 NC, on the left: 41/42, 53/54, on the right: 21/22, 33/34, current path: 1 NC, 1 NO, spring-loaded terminal, 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","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":"1 000 000","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5f74707cb4ad010a1660756b0cfb693d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=256322&mlfb=3RH2916-2DA11"},"ai":{"faq":[{"question":"What contactor does this auxiliary switch fit?","answer":"It is designed for Siemens 3RT2 contactors and 3RH2 contactor relays, mounting laterally on the left side."},{"question":"What type of terminals does it use?","answer":"Spring-loaded terminals accepting 2x (0.5 to 2.5 mm²) without core-end processing, or 2x (0.5 to 1.5 mm²) with ferrules."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2916-2DA11","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/3RH2916-2DA11 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}}