{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2911-1HA01-ZW97","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2911-1HA01-ZW97","canonicalUrl":"https://aoctrl.com/siemens/3RH2911-1HA01-ZW97","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2911-1HA01-ZW97","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RH2911-1HA01-ZW97 auxiliary switch block, 1 NC contact, 10 A maximum, screw-type terminals, snap-on front mounting for 3RT2 contactors and 3RH2 contactor relays, IP20 front protection, multi-unit packaging of 120.","salesMarkdown":"## Front-mounted auxiliary switch for 3RT2 / 3RH2 The 3RH2911-1HA01-ZW97: This is a front-mounted auxiliary switch block designed to snap onto Siemens 3RT2 contactors and 3RH2 contactor relays — no tools, no DIN-rail space consumed beyond the base device footprint. The block carries one normally-closed (NC) contact, wired via screw-type terminals accepting 2x (0.5...1.5 mm²) or 2x (0.75...2.5 mm²) solid/stranded conductors, or 2x (20...16) / 2x (18...14) AWG. Rated 10 A maximum, with AC-15 current values spanning 10 A at 24 V down to 0.26 A at 600 V (–) and DC-13 ratings from 6 A at 24 V to 0.3 A at 220 V (–) — so the same block handles both control-circuit and low-power load switching across a wide voltage range. Mechanical service life is 10 million switching cycles typical; contact reliability is rated at 1 faulty switching per 100 million operations at 17 V, 1 mA, so it's suited for high-cycle PLC input sensing or valve pilot duty where contact weld risk must be minimised. ## Sourcing and lifecycle — active, no replacement needed This is the current production part, not a legacy or NRND item. The block is part of the Siemens SIRIUS family and carries IP20 front protection with a rated impulse withstand of 6 kV and insulation voltage of 690 V AC at pollution degree 3. Sourced and quoted to order against your BOM quantity through independent distribution — availability and current pricing confirmed at RFQ time.","metaTitle":"Siemens 3RH2911-1HA01-ZW97 Auxiliary Switch, 1 NC, 10 A","metaDescription":"Siemens SIRIUS auxiliary switch block for 3RT2 contactors & 3RH2 relays. 1 NC contact, 10 A max, screw terminals, snap-on front mount.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Note":"with 3RH2","Depth":"43.7 mm","Width":"36 mm","title":"3RH2911-1HA01-ZW97","Height":"37.5 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","description":"auxiliary switch, on the front, 1 NC,.1/.2, --/--, --/--, --/--, current path: 1 NC, --, --, --, screw terminal, for contactors 3RT2 and contactor relays 3RH2, multi-unit packaging, pack = 120 units","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":"0","With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 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 ... 16), 2x (18 ... 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":"screw-type 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/0a7dc29fa77a860402c8749fd0a817d3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=378932&mlfb=3RH2911-1HA01-ZW97"},"ai":{"faq":[{"question":"What does the 'with 3RH2' note mean for this auxiliary switch?","answer":"It means this block is designed to mount on the front of both 3RT2 contactors and 3RH2 contactor relays. The same block fits either device — no adapter needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2911-1HA01-ZW97","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/3RH2911-1HA01-ZW97 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}