{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2911-1HA01-ZW96","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2911-1HA01-ZW96","canonicalUrl":"https://aoctrl.com/siemens/3RH2911-1HA01-ZW96","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2911-1HA01-ZW96","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RH2911-1HA01-ZW96 auxiliary switch, 1 NC, screw-type terminals, snap-on mounting, for 3RT2 contactors and 3RH2 contactor relays, IP20 front, 10 A maximum.","salesMarkdown":"## What this auxiliary switch does in the panel The 3RH2911-1HA01-ZW96 is a front-mounted auxiliary switch block for Siemens SIRIUS 3RT2 contactors and 3RH2 contactor relays, adding one normally-closed (NC) contact path to the base device. It snaps onto the front of the contactor or relay without extra tools — the 36 mm width and 43.7 mm depth keep it within the same DIN-rail footprint as the base unit. Rated for 10 A maximum, with the NC contact carrying 6 A at 24 V, 6 A at 230 V, and 3 A at 400 V — the current path is the single NC, no other contact configurations on this variant. ## Contact ratings and switching duty The NC contact is rated for AC-15 duty at 690 V, 1 A — this covers solenoid and relay loads typical in control circuits, not motor switching. Rated insulation voltage is 690 V at pollution degree 3, with a 6 kV surge voltage resistance, so it holds up in industrial panels without additional creepage clearance. Contact reliability is specified at 1 faulty switching per 100 million operations at 17 V, 1 mA — this matters for low-energy signal circuits where oxide films can cause intermittent opens. Mechanical service life is 10 million switching cycles typical, which for a control-circuit auxiliary block means it outlasts most contactor main-contact replacements. ## Wiring and environmental limits Screw-type terminals accept 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) conductors per clamp, or 2x (20 to 16 AWG) or 2x (18 to 14 AWG) — two conductors per terminal is standard for daisy-chaining control wiring. Operating temperature range is -25 to +60 °C, storage from -55 to +80 °C — fine for unheated enclosures in most climates. Front-side protection is IP20 — the terminals are touch-safe but the unit is not sealed against dust ingress; it belongs inside a panel, not in a washdown zone. ## Sourcing and lifecycle reality This is a multi-unit packaged variant (240 units per pack), so single-unit pricing may differ from the standard 3RH2911-1HA01-ZW96 single-pack version — confirm the pack quantity against your BOM line.","metaTitle":"Siemens 3RH2911-1HA01-ZW96 Auxiliary Switch, 1 NC, 10 A","metaDescription":"Siemens SIRIUS auxiliary switch 3RH2911-1HA01-ZW96, 1 NC contact, rated 10 A max, screw terminals, snap-on for 3RT2/3RH2. Active production, quoted to order.","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-ZW96","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 = 240 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/1301ff3b4b6159368994358382243cee.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=205999&mlfb=3RH2911-1HA01-ZW96"},"ai":{"faq":[{"question":"What does the 'with 3RH2' note mean for this part?","answer":"The note indicates this auxiliary switch block is designed to mount on Siemens 3RH2 contactor relays as well as 3RT2 contactors — the same switch fits both product families."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2911-1HA01-ZW96","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-ZW96 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}}