{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2911-2XA40-0MA0-ZW96","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2911-2XA40-0MA0-ZW96","canonicalUrl":"https://aoctrl.com/siemens/3RH2911-2XA40-0MA0-ZW96","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2911-2XA40-0MA0-ZW96","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RH2911-2XA40-0MA0-ZW96 auxiliary switch block, 4 NO contacts, 10 A maximum rated current, spring-loaded terminals, snap-on mounting for 3RT2 contactors and 3RH2 contactor relays.","salesMarkdown":"## Front-mount auxiliary contact block for SIRIUS contactors The 3RH2911-2XA40-0MA0-ZW96: This is a 4-pole normally-open auxiliary switch block that mounts on the front of Siemens SIRIUS 3RT2 contactors and 3RH2 contactor relays. The spring-loaded terminals accept 2x (0.5 to 2.5 mm²) without ferrule, or 2x (0.5 to 1.5 mm²) with ferrule, saving wiring time versus screw terminals. ## Current ratings and switching duty Rated 10 A maximum, with AC-15 switching at 690 V rated at 1 A — this governs the inductive load capability for contactor coils and solenoid valves. At 24 V the switch handles 6 A, dropping to 0.3 A at 220 V. The AC-15 rating at 690 V is the limiting spec for control-circuit isolation in 400/690 V panels. ## Snap-on mounting and panel fit Snap-on mounting to the contactor front — no tools needed for installation or removal. Dimensions are 36 mm wide, 47.7 mm deep, 41.5 mm high, fitting within the contactor envelope. IP20 front protection means it's touch-safe in enclosed panels but not for washdown environments. ## Service life and contact reliability 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 — important for PLC-level signals where dry switching can cause oxide buildup on standard contacts. Insulation voltage is 690 V AC at pollution degree 3, with 6 kV surge voltage resistance. ## Sourcing and lifecycle status Listed as current production — this is an active SIRIUS catalog item. Quoted to order against BOM quantities through independent distribution; availability and pricing confirmed at RFQ. The multi-unit packaging (196 units per pack) suits panel builders running multiple starters on a line.","metaTitle":"Siemens 3RH2911-2XA40-0MA0-ZW96 Auxiliary Switch, 4 NO, 10 A","metaDescription":"Siemens 3RH2911-2XA40-0MA0-ZW96 auxiliary switch, 4 NO contacts, 10 A max, spring-loaded terminals. SIRIUS series for 3RT2/3RH2 contactors. Quoted to order.","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","title":"3RH2911-2XA40-0MA0-ZW96","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","description":"auxiliary switch, on the front, 4 NO, 53/54, 63/64, 73/74, 83/84, current path: 1 NO, 1 NO, 1 NO, 1 NO, spring-loaded terminal, for contactors 3RT2 and contactor relays 3RH2, multi-unit packaging, pack = 196 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":"4","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f9f2e339485624615a800f8b1f5286c6.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=558606&mlfb=3RH2911-2XA40-0MA0-ZW96"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2911-2XA40-0MA0-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/3RH2911-2XA40-0MA0-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}}