{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1911-1GA22-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1911-1GA22-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RH1911-1GA22-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1GA22-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch block, 3RH1911-1GA22-ZX95, 2 NO + 2 NC per EN 50011, screw terminals, rated 10 A, snap-on mounting, IP20 front.","salesMarkdown":"The Siemens SIRIUS 3RH1911-1GA22-ZX95 is a 4-pole auxiliary switch block designed for use with contactor relays and power contactors in the SIRIUS family. It provides 2 normally-open and 2 normally-closed instantaneous contacts arranged per EN 50011, wired via screw-type terminals. Rated for a maximum of 10 A, the block handles a range of control-circuit voltages: 6 A at 24 V, 6 A at 125 V, 6 A at 230 V, and 3 A at 400 V. For DC-13 type loads, it carries 10 A at 24 V, 4.7 A at 60 V, and 0.26 A at 600 V. That spread covers most pilot-duty and signal-level switching in a control panel. Contact reliability is specified at one faulty switching operation per 100 million cycles at 17 V, 5 mA — and a tighter spec of one per 100 million at 17 V, 1 mA for the auxiliary contacts. That means it handles low-energy signals from PLC outputs or relay logic without nuisance failures. The block measures 36.5 mm wide, 41.5 mm deep, and 37.5 mm high — it clips directly onto the front of a SIRIUS contactor relay (3RH1 series) without taking additional panel width. Terminals accept two conductors per clamp: 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) with ferrule, or 2x (20 to 16 AWG) and 2x (18 to 14 AWG) solid. Surge voltage resistance is 6 kV, and insulation voltage is rated at 690 V with pollution degree 3 — adequate for 400 V line-to-line control circuits in industrial environments. The 3RH1911-1GA22-ZX95 is a phased-out product. The manufacturer's official successor is the SIRIUS 3RH2 series auxiliary switch block. If you are holding a BOM line for this order code, the 3RH2 is the drop-in replacement path — verify the contact arrangement and terminal type match your panel wiring before reordering.","metaTitle":"Siemens 3RH1911-1GA22-ZX95 Auxiliary Switch Block, 2 NO + 2","metaDescription":"Siemens SIRIUS auxiliary switch block 3RH1911-1GA22-ZX95, 2 NO + 2 NC contacts, rated 10 A, IP20. Phased-out product; successor is 3RH2 series. Sourced to order against RFQ.","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","Mounting type":"snap-on mounting","During Storage":"-55 ... +80 °C","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Product brand name":"SIRIUS","Contact reliability":"one incorrect switching operation of 100 million switching operations (17 V, 5 mA)","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 conductors 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","Insulation voltage with degree of pollution 3 rated value":"690 V","Type of electrical connection for auxiliary and control current circuit":"screw-type terminals"}},"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=13728&mlfb=3RH1911-1GA22-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1GA22-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What replaces the 3RH1911-1GA22-ZX95?","answer":"The SIRIUS 3RH2 series auxiliary switch block is the designated replacement. Confirm the contact configuration (2 NO + 2 NC) and screw-terminal type match your application."},{"question":"Will this block fit a 3RT1015 contactor?","answer":"The 3RH1911-1GA22-ZX95 is designed for the 3RH1 contactor relay series. It snaps onto the front of that relay. For a 3RT1015 power contactor, you would typically use a different auxiliary block from the 3RH19 family that matches the S00 frame size. Check the mounting interface before ordering."},{"question":"What are the key ratings for this auxiliary switch block?","answer":"Maximum current is 10 A. It provides 2 NO + 2 NC instantaneous contacts. Contact reliability is one fault per 100 million operations at 17 V, 5 mA. Mechanical life is 10 million cycles. Surge voltage resistance is 6 kV."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1911-1GA22-ZX95","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-ZX95 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}}