{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2911-1GA04-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2911-1GA04-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RH2911-1GA04-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2911-1GA04-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch block, 4 NC, front-mount, screw terminals, 10 A, snap-on for 3RH2140/3RH2440 contactor relays, 3RH2911-1GA04-ZX95.","salesMarkdown":"The Siemens 3RH2911-1GA04-ZX95 is a front-mounted auxiliary switch block for the SIRIUS contactor relay family. It carries four normally-closed (NC) contacts, wired via screw-type terminals, and snaps onto the front of a contactor relay without tools. This block is physically coded and fits only the 3RH2140 and 3RH2440 contactor relays per EN 50011. It does not mount on other 3RH2 frames or on the 3RT series contactors. Each NC contact is rated for a maximum thermal current of 10 A. At 24 V the switching capacity is 6 A; at 230 V it is also 6 A, and at 400 V it drops to 3 A. For DC switching, the 24 V rating is 10 A, falling to 0.26 A at 600 V. The AC-15 rating at 690 V is 1 A, which governs the inductive load capability for solenoid and contactor coils at higher voltages. The switch block measures 36 mm wide, 37.5 mm high, and 43.7 mm deep. Front protection class is IP20. Wire capacity accepts 2x (0.5 to 1.5 mm²) and 2x (0.75 to 2.5 mm²) with ferrule, or 2x (20 to 16 AWG) and 2x (18 to 14 AWG) for solid wire.","metaTitle":"Siemens 3RH2911-1GA04-ZX95 SIRIUS Auxiliary Switch, 4 NC, 10","metaDescription":"Siemens 3RH2911-1GA04-ZX95 SIRIUS auxiliary switch block, 4 NC contacts, 10 A rated, snap-on front mount for 3RH2140/3RH2440 contactor relays. 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":"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=761135&mlfb=3RH2911-1GA04-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH2911-1GA04-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What contactor relays does this auxiliary switch fit?","answer":"It fits only the Siemens 3RH2140 and 3RH2440 contactor relays, per EN 50011. It is physically coded and will not mount on other 3RH2 frames or 3RT series contactors."},{"question":"What is the rated current of the 3RH2911-1GA04-ZX95 contacts?","answer":"The maximum thermal current is 10 A. At 24 V AC the switching capacity is 6 A; at 230 V AC it is also 6 A; at 400 V AC it is 3 A. For DC at 24 V the rating is 10 A."},{"question":"Where can I buy 3RH2911-1GA04-ZX95?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2911-1GA04-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/3RH2911-1GA04-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}}