{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2911-1GA13-ZW98","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2911-1GA13-ZW98","canonicalUrl":"https://aoctrl.com/siemens/3RH2911-1GA13-ZW98","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2911-1GA13-ZW98","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch block, 1 NO + 3 NC, 10 A, screw terminals, snap-on mounting, IP20, 43.7 mm depth.","salesMarkdown":"The Siemens 3RH2911-1GA13-ZW98 is a SIRIUS auxiliary switch block that snaps onto the front of 3RH2 contactor relays — specifically the 3RH2140 and 3RH2440 frames, per the EN 50011 contact arrangement standard. It gives you one normally-open and three normally-closed auxiliary contacts, wired out to terminals 53/54, 61/62, 71/72, and 81/82, all screw-type. Physically coded so it only fits the right relay body — no guessing on the panel. At 24 V it handles 6 A; at 230 V it also carries 6 A; at 400 V it drops to 3 A. For inductive loads under AC-15 at 690 V, the rated value is 1 A — that's the figure to use for solenoid or contactor coil switching. The DC ratings are lower: at 24 V DC it's 10 A, at 60 V DC it's 4.7 A, at 110 V DC it's 3 A, and at 600 V DC it's just 0.26 A. So for a 24 V DC pilot circuit you're fine at 10 A, but step up to 110 V DC and you're limited to 3 A. Snap-on mounting to the front of the contactor relay — no tools, no DIN rail required for the switch itself. The block dimensions are 36 mm wide, 37.5 mm high, and 43.7 mm deep, so it adds about 44 mm to the relay's depth. Screw terminals accept 2x (0.5…1.5 mm²) or 2x (0.75…2.5 mm²) solid or stranded, or AWG 20–16 and 18–14. Strip length is not stated, but standard practice is 8–10 mm for this terminal type. ## Durability and reliability Surge voltage resistance is 6 kV, and insulation voltage at pollution degree 3 is 690 V AC.","metaTitle":"Siemens 3RH2911-1GA13-ZW98 SIRIUS Auxiliary Switch, 1 NO + 3","metaDescription":"Siemens SIRIUS 3RH2911-1GA13-ZW98 auxiliary switch block, 1 NO + 3 NC, 10 A max, snap-on for 3RH2 contactor relays. 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","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":"1","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=774104&mlfb=3RH2911-1GA13-ZW98","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH2911-1GA13-ZW98/alternatives.json"},"ai":{"faq":[{"question":"How do I get pricing and availability for 3RH2911-1GA13-ZW98?","answer":"Submit an RFQ. We source this part to order through independent distribution; current pricing and stock status are confirmed at quote time."},{"question":"What is the note 'with 3RH2' on this part?","answer":"The note indicates this auxiliary switch block is designed to mount on 3RH2 contactor relays — specifically the 3RH2140 and 3RH2440 frames. It is physically coded so it won't fit other relay families."},{"question":"What is the depth of 3RH2911-1GA13-ZW98?","answer":"The depth is 43.7 mm. That's the dimension from the relay face outward once snapped on."},{"question":"Will 3RH2911-1GA13-ZW98 drop into a panel specified around 3RH2122-1WB40?","answer":"No — the 3RH2911-1GA13-ZW98 is a front-mounted auxiliary switch block for 3RH2 contactor relays, while the 3RH2122-1WB40 is a different relay variant. They are not mechanically interchangeable without rewiring the relay base."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2911-1GA13-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/3RH2911-1GA13-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}}