{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2911-1GA22-ZW98","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2911-1GA22-ZW98","canonicalUrl":"https://aoctrl.com/siemens/3RH2911-1GA22-ZW98","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2911-1GA22-ZW98","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch block, 3RH2911-1GA22-ZW98, 2 NO + 2 NC, screw terminals, 10 A maximum, snap-on mounting, IP20 front protection.","salesMarkdown":"The Siemens 3RH2911-1GA22-ZW98 is a SIRIUS auxiliary switch block designed exclusively for the 3RH2140 and 3RH2440 contactor relay frames. It provides 2 normally-open and 2 normally-closed contacts arranged per EN 50011, with screw-type terminals for the auxiliary and control circuits. The physical coding on the housing prevents accidental mounting on incompatible relay bases — it only clicks onto those two specific relay models. Rated for 10 A maximum, with AC-15 switching capacity at 24 V also rated at 10 A. That means it handles the inrush of contactor coils and solenoid valves in a control panel without welding the contacts. At higher voltages the current capability drops — 6 A at 230 V, 3 A at 400 V, and 0.5 A at 440 V — so verify your load's voltage before committing the BOM line. Rated for 10 million mechanical switching cycles typical, so it outlasts most contactor relays in cyclic service. Snap-on mounting to the relay base — no DIN rail footprint of its own, it rides on the contactor relay. Screw terminals accept 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.","metaTitle":"Siemens 3RH2911-1GA22-ZW98 SIRIUS Auxiliary Switch, 2 NO + 2","metaDescription":"Siemens SIRIUS auxiliary switch block for 3RH2140/3RH2440 contactor relays. 2 NO + 2 NC, screw terminals, 10 A max, IP20. Active production, sourced 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","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","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","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=773572&mlfb=3RH2911-1GA22-ZW98","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH2911-1GA22-ZW98/alternatives.json"},"ai":{"faq":[{"question":"What contactor relays does this auxiliary switch fit?","answer":"It is physically coded to mount only on Siemens 3RH2140 and 3RH2440 contactor relays. It will not fit other 3RH2 frames without the coding match."},{"question":"What are the key switching ratings for this auxiliary switch block?","answer":"Maximum 10 A. AC-15 rated at 24 V is 10 A, at 230 V it's 6 A, at 400 V it's 3 A. Surge voltage resistance is 6 kV."},{"question":"What is the mechanical service life?","answer":"10 million switching cycles typical."},{"question":"What compliance documentation is available for this part?","answer":"The evidence does not list specific compliance certificates (RoHS, REACH, UL, IEC). Standard Siemens SIRIUS documentation applies; request the declaration of conformity with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2911-1GA22-ZW98","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/3RH2911-1GA22-ZW98 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}}