{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2911-1XA40-0MA0-ZW96","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2911-1XA40-0MA0-ZW96","canonicalUrl":"https://aoctrl.com/siemens/3RH2911-1XA40-0MA0-ZW96","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2911-1XA40-0MA0-ZW96","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RH2911-1XA40-0MA0-ZW96 auxiliary switch block, 4 NO contacts, 10 A maximum, screw-type terminals, snap-on DIN rail mounting, IP20 front, 36 x 37.5 x 43.7 mm.","salesMarkdown":"## Front-mounted auxiliary switch for 3RT2/3RH2 contactors The 3RH2911-1XA40-0MA0-ZW96: This is a four-pole normally-open auxiliary switch block that snaps onto the front of Siemens SIRIUS 3RT2 contactors and 3RH2 contactor relays. It adds four instantaneous NO contacts (terminal designations 53/54, 63/64, 73/74, 83/84) for feedback, interlocking, or extended control logic without increasing the panel footprint beyond the 36 mm width of the base device. Rated 10 A maximum, with a 10 A rated value at 24 V. The AC-15 switching capacity at 690 V is 1 A, and the DC-13 ratings drop from 6 A at 24 V to 0.26 A at 600 V — the load type and voltage determine the actual contact current limit, not the 10 A headline figure. ## DIN rail fit and panel integration Snap-on mounting to 35 mm DIN rail per EN 60715. The 36 mm width matches the contactor frame, so the assembly stays within a single module pitch. Depth is 43.7 mm from the rail face — account for this when laying out gland plates or enclosure depth. Screw-type terminals accept two conductors per clamp: 2x (0.5…1.5 mm²) or 2x (0.75…2.5 mm²), or 2x (20…16 AWG) and 2x (18…14 AWG). The IP20 front protection means the terminals are finger-safe once installed in a closed panel. ## Switching life and signal-level reliability Mechanical service life is 10 million switching cycles typical. For low-level signal circuits, the contact reliability is specified at 1 faulty switching per 100 million operations at 17 V, 1 mA — this covers PLC input and pilot-duty loads where oxide film on silver contacts can cause intermittent opens. Insulation voltage is 690 V AC at pollution degree 3, with a 6 kV surge voltage resistance. Operating temperature range is -25 to +60 °C; storage range is -55 to +80 °C. ## Sourcing and lifecycle status Quoted to order against the BOM quantity. Availability and current pricing confirmed at RFQ time.","metaTitle":"Siemens 3RH2911-1XA40-0MA0-ZW96 Auxiliary Switch, 4 NO, 10 A","metaDescription":"Siemens SIRIUS auxiliary switch block, 4 NO contacts, 10 A max, screw terminals, snap-on DIN rail. 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":"3RH2911-1XA40-0MA0-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, 4 NO, 53/54, 63/64, 73/74, 83/84, current path: 1 NO, 1 NO, 1 NO, 1 NO, 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":"4","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/d734485022cade9c46979ab6b6da8cdf.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1024761&mlfb=3RH2911-1XA40-0MA0-ZW96"},"ai":{"faq":[{"question":"What contactors does this auxiliary switch mount on?","answer":"It mounts on the front of Siemens 3RT2 contactors and 3RH2 contactor relays. The snap-on DIN rail mounting keeps the 36 mm width aligned with the base device."},{"question":"What are the DC switching ratings for this auxiliary switch?","answer":"DC-13 ratings vary by voltage: 6 A at 24 V, 4.7 A at 60 V, 3 A at 110 V, 1.2 A at 220 V, 0.5 A at 440 V, and 0.26 A at 600 V. The 10 A maximum applies to the AC resistive load; always check the DC load curve for inductive or lamp loads."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2911-1XA40-0MA0-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/3RH2911-1XA40-0MA0-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}}