{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1911-1HA13-ZW95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1911-1HA13-ZW95","canonicalUrl":"https://aoctrl.com/siemens/3RH1911-1HA13-ZW95","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1HA13-ZW95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch block, 3RH1911-1HA13-ZW95, 1 NO + 3 NC contacts, 10 A max, screw-type terminals, snap-on mounting for contactor relays and power contactors.","salesMarkdown":"The Siemens 3RH1911-1HA13-ZW95 is a SIRIUS auxiliary switch block with 1 normally open and 3 normally closed contacts, rated for a maximum of 10 A and designed for use with contactor relays and power contactors. It snaps onto the contactor, so panel integration is straightforward — no separate DIN-rail footprint needed beyond the contactor itself. The 10 A maximum is the thermal current (Ith); the real switching capacity depends on voltage and duty. At 24 V it handles 6 A, at 230 V it also handles 6 A, and at 400 V it drops to 3 A. For DC applications the derating is steeper — at 220 V DC it's only 0.3 A. The AC-15 rating at 690 V is 1 A, which covers solenoid and contactor coil switching in that voltage class. Mechanical service life is 10 million switching cycles typical, and contact reliability is rated at 1 faulty switching per 100 million operations at 17 V, 1 mA — that's a low-level signal reliability spec, important if you're switching PLC inputs or sensor signals rather than power loads. Snap-on mounting means it clips directly onto the contactor — no tools, no extra DIN rail. The screw-type 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 3RH1911-1HA13-ZW95 Auxiliary Switch Block, 10 A, 1 N","metaDescription":"Siemens SIRIUS 3RH1911-1HA13-ZW95 auxiliary switch block, 10 A max, 1 NO + 3 NC contacts, screw terminals, snap-on mounting. Phased-out; successor is 3RH2 series. Sourced to order.","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":"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=255825&mlfb=3RH1911-1HA13-ZW95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1HA13-ZW95/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RH1911-1HA13-ZW95 and how do I get a price?","answer":"This part is sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time."},{"question":"What is the closest functional second-source for 3RH1911-1HA13-ZW95?","answer":"The official Siemens replacement is the SIRIUS 3RH2 series auxiliary contact blocks. They share the same snap-on mounting and screw-terminal design, but verify the contact configuration (NO/NC count) and voltage ratings for your specific application."},{"question":"What does the note 'with 3RH1' mean on this component?","answer":"The note indicates this auxiliary switch block is designed to mount on 3RH1 contactor relays and 3RT1 power contactors from the SIRIUS family."},{"question":"What is the depth of 3RH1911-1HA13-ZW95?","answer":"The depth is 41.5 mm, with a width of 36.5 mm and height of 37.5 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1911-1HA13-ZW95","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/3RH1911-1HA13-ZW95 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}}