{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1911-1HA01-ZW98","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1911-1HA01-ZW98","canonicalUrl":"https://aoctrl.com/siemens/3RH1911-1HA01-ZW98","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1HA01-ZW98","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch block, 3RH1911-1HA01-ZW98, 4-pole, 10 A max, screw-type terminals, snap-on mounting.","salesMarkdown":"The Siemens SIRIUS 3RH1911-1HA01-ZW98 is a 4-pole auxiliary switch block designed for use with contactor relays and power contactors. It's a snap-on mounting block that adds four additional NO/NC contacts to the base contactor, giving you more signal or control-circuit switching capacity without a bigger footprint. Rated for a maximum of 10 A, this block handles typical auxiliary circuit loads. The AC-15 rating at 690 V is 1 A, which is the real-world figure for switching contactor coils and solenoid valves at higher voltages — that's where the inductive load curve bites. At 24 V DC the rated value is 10 A, dropping to 0.26 A at 600 V DC, so watch the voltage derating if you're switching DC control circuits. Mechanical service life is 10 million switching cycles typical. The block uses screw-type terminals, accepting 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) with ferrule, or 2x (20 to 16) and 2x (18 to 14) AWG.","metaTitle":"Siemens 3RH1911-1HA01-ZW98 Auxiliary Switch Block, 10 A","metaDescription":"Siemens SIRIUS 3RH1911-1HA01-ZW98 auxiliary switch block. 10 A max, snap-on mounting, 4-pole. 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":"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=362152&mlfb=3RH1911-1HA01-ZW98","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1HA01-ZW98/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RH1911-1HA01-ZW98 and get a price?","answer":"We source this part through independent distribution. Submit an RFQ for availability and current pricing — we'll confirm at quote time."},{"question":"What does the note 'with 3RH1' mean?","answer":"The note indicates this auxiliary switch block is designed for use with the 3RH1 contactor relay series, per the manufacturer's specification."},{"question":"What are the physical dimensions of 3RH1911-1HA01-ZW98?","answer":"Depth is 41.5 mm, width is 36.5 mm, and height is 37.5 mm. It snaps onto a DIN rail or directly onto the contactor."},{"question":"Will 3RH1911-1HA01-ZW98 fit in a panel designed for a 3RT5056 contactor?","answer":"No — 3RT5056 is a power contactor in a different frame size. This auxiliary block mates with the 3RH1 contactor relay, not the larger 3RT5 series. Check the contactor model before ordering."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1911-1HA01-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/3RH1911-1HA01-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}}