{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1911-1GA04-ZW98","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1911-1GA04-ZW98","canonicalUrl":"https://aoctrl.com/siemens/3RH1911-1GA04-ZW98","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1GA04-ZW98","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch block, 3RH1911-1GA04-ZW98, 4 NC contacts, screw-type terminals, snap-on mounting for contactor relays and power contactors.","salesMarkdown":"The Siemens SIRIUS 3RH1911-1GA04-ZW98 is a 4-pole auxiliary switch block with 4 NC contacts (44 E per EN 50011), terminated via screw-type terminals. It snap-mounts onto a DIN rail alongside SIRIUS contactor relays and power contactors, sharing the same 36.5 mm width footprint. This auxiliary block carries a maximum thermal current of 10 A, but the switching capacity varies sharply with voltage and duty. At 24 V DC it switches 6 A; at 60 V DC it drops to 2 A; at 110 V DC it handles 1 A; at 220 V DC only 0.3 A. The AC-15 rating at 690 V is 1 A — that's the inductive load curve for contactor coils and solenoid valves. For resistive loads (AC-12), the 24 V DC rating climbs to 10 A. The takeaway: if you're switching a 24 V DC PLC output to a small relay coil, the 6 A figure gives comfortable headroom; if you're switching a 220 V DC brake solenoid, the 0.3 A limit means you need a larger contact block or an interposing relay. ## Lifecycle status — phased out, successor identified The 3RH1911-1GA04-ZW98 is a phased-out product. The manufacturer lists the SIRIUS 3RH2 series as the official successor. For BOM continuity, the 3RH2 blocks share the same 36.5 mm width and snap-on mounting, but verify the contact configuration and terminal layout against your panel wiring diagram before substituting. ## Integration notes Depth is 41.5 mm, height 37.5 mm. 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. Surge voltage resistance is 6 kV, insulation voltage 690 V AC at pollution degree 3.","metaTitle":"Siemens 3RH1911-1GA04-ZW98 SIRIUS Auxiliary Switch Block, 4","metaDescription":"Siemens SIRIUS 3RH1911-1GA04-ZW98 auxiliary switch block, 4 NC contacts, screw terminals. Phased-out, successor is 3RH2. 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","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":"0","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=290614&mlfb=3RH1911-1GA04-ZW98","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1GA04-ZW98/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RH1911-1GA04-ZW98?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is 3RH1911-1GA04-ZW98's listed depth?","answer":"The depth is 41.5 mm, width 36.5 mm, height 37.5 mm. It snap-mounts onto 35 mm DIN rail and is sized to match SIRIUS contactor relays and power contactors."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1911-1GA04-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/3RH1911-1GA04-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}}