{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1911-1GA22-ZW97","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1911-1GA22-ZW97","canonicalUrl":"https://aoctrl.com/siemens/3RH1911-1GA22-ZW97","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1GA22-ZW97","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch block, 3RH1911-1GA22-ZW97, 4-pole 2 NO + 2 NC, 10 A, screw-type terminals, snap-on mounting, IP20 front.","salesMarkdown":"The Siemens SIRIUS 3RH1911-1GA22-ZW97 is a 4-pole auxiliary switch block with 2 normally open and 2 normally closed contacts, intended for use with contactor relays and power contactors. It snaps onto the contactor without tools, adding auxiliary contact capacity for feedback or interlock circuits. The contacts are rated for a maximum of 10 A, but the actual switching capacity depends on the voltage. At 24 V DC the contacts handle 6 A; at 60 V DC it drops to 2 A; at 110 V DC it's 1 A; at 220 V DC it's 0.3 A. For AC-15 duty at 690 V the rating is 1 A. These are the numbers that matter when you're sizing the block for a specific control voltage — don't assume the 10 A max applies across the board. The block also carries a separate set of rated operational currents for the contactor relay application: 10 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. Use the set that matches your circuit type. It snaps onto the contactor — no screws needed for the mechanical attachment. The auxiliary and control circuit connections use screw-type terminals, accepting 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) with core-end processing, or 2x (20 to 16) and 2x (18 to 14) AWG. ## Durability and reliability ## Insulation coordination Rated surge voltage resistance is 6 kV, and insulation voltage at AC with pollution degree 3 is 690 V.","metaTitle":"Siemens 3RH1911-1GA22-ZW97 Auxiliary Switch Block, 4-pole, P","metaDescription":"Siemens SIRIUS 3RH1911-1GA22-ZW97 auxiliary switch block, 2 NO + 2 NC, 10 A, screw terminals. Phased-out; successor is SIRIUS 3RH2. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Note":"with 3RH1","Depth":"41.5 mm","Width":"36.5 mm","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","During Storage":"-55 ... +80 °C","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"snap-on mounting","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":"2","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,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=77020&mlfb=3RH1911-1GA22-ZW97","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1GA22-ZW97/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for 3RH1911-1GA22-ZW97?","answer":"The official successor is the SIRIUS 3RH2 series, for example the 3RH2122-1WB40. That part has a different footprint (73 mm depth vs 41.5 mm, 45 mm width vs 36.5 mm) and uses screw and snap-on mounting onto 35 mm DIN rail, so it will not drop into the same panel without rewiring and possibly a different mounting adapter."},{"question":"What does the note 'with 3RH1' mean on this component?","answer":"The note 'with 3RH1' indicates this auxiliary switch block is designed to mount onto SIRIUS 3RH1 contactor relays."},{"question":"What is the depth of 3RH1911-1GA22-ZW97?","answer":"The depth is 41.5 mm, with a width of 36.5 mm and height of 37.5 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1911-1GA22-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/3RH1911-1GA22-ZW97 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}