{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1344-1AK20-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1344-1AK20-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RH1344-1AK20-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1344-1AK20-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, size S00, 4 NO instantaneous contacts, 10 A at 24 V, 45 mm width, 111 mm depth, IP20 front, screw and snap-on mounting.","salesMarkdown":"Depth is 111 mm, so it needs that much clearance behind the rail for wiring and heat dissipation. For inductive loads, derate accordingly; the 10 A at 24 V figure gives you headroom for pilot-duty solenoids and relay coils. Contact reliability is specified at one incorrect switching operation per 100 million cycles at 17 V, 1 mA — a dry-circuit rating that tells you the contacts are gold-flashed or similarly treated for low-level signal switching. If you're switching PLC inputs or sensor signals at milliamps, this contactor handles it without the oxidation problems that plague unplated contacts. That's the life of the mechanism before wear-out, not the electrical life at full load — at rated current you'll see fewer cycles, but the mechanical figure gives you the ceiling for maintenance planning. Shock resistance is 10g for 5 ms and 5g for 10 ms — fine for most industrial machinery but not for high-vibration applications like hammer mills without additional damping. Solid conductors accepted: 2x 0.5 to 1.5 mm², 2x 0.75 to 2.5 mm², and 2x 4 mm². That's two conductors per terminal for the smaller gauges, which helps when you need to loop through or parallel a control circuit. The 4 mm² single-conductor capacity covers most control-power feeds. RoHS compliance is indicated by the substance prohibition date of July 1, 2006, covering the standard EU RoHS directive.","metaTitle":"3RH1344-1AK20-ZX95 SIRIUS Auxiliary Contactor, 4 NO, 10 A at","metaDescription":"Siemens SIRIUS auxiliary contactor, size S00, 4 NO instantaneous contacts, 10 A at 24 V, 45 mm wide, IP20 front, current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"111 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²","Width":"45 mm","Height":"57.5 mm","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","During Storage":"-55 ... +80 °C","Leading Contact":"0","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","During Transport":"-55 ... +80 °C","Fastening Method":"screw and snap-on mounting","Shock Resistance":"10g / 5 ms and 5g / 10 ms","Delayed Switching":"0","Lagging Switching":"0","Mounting Position":"+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface","Size Of Contactor":"S00","Product Brand Name":"SIRIUS","Contact Reliability":"one incorrect switching operation of 100 million switching operations (17 V, 1 mA)","Degree Of Pollution":"3","Product Designation":"Auxiliary contactor","at 24 V rated value":"10 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"1 A","at 220 V rated value":"0.27 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 50 Hz rated value":"120 V","at 500 V rated value":"2 A","at 60 Hz rated value":"120 V","at 690 V rated value":"1 A","Instantaneous Contact":"4","For Auxiliary Contacts":"0","Make-Before-Break Switching":"0","Substance Prohibitance (Date)":"07/01/2006","protection class IP on the front":"IP20","Product Extension Auxiliary Switch":"No","Surge Voltage Resistance Rated Value":"6 kV","operational current at AC-12 maximum":"10 A","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","reference code according to IEC 81346-2":"K","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Touch Protection Against Electrical Shock":"finger-safe","with low demand rate according to SN 31920":"40 %","Of Auxiliary Contacts Instantaneous Contact":"0","apparent holding power of magnet coil at AC":"4.6 VA","apparent pick-up power of magnet coil at AC":"27 VA","with high demand rate according to SN 31920":"75 %","number of NC contacts for auxiliary contacts":"4","number of NO contacts for auxiliary contacts":"4","Type Of Voltage Of The Control Supply Voltage":"AC","Inductive Power Factor With Closing Power Of The Coil":"0.8","Identification Number And Letter For Switching Elements":"44 E","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Required Spacing With Side-By-Side Mounting At The Side":"0 mm","Inductive Power Factor With The Holding Power Of The Coil":"0.27","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","Design Of The Fuse Link For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A"}},"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=483710&mlfb=3RH1344-1AK20-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1344-1AK20-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What is 3RH1344-1AK20-ZX95's listed depth?","answer":"The depth is 111 mm, which is the dimension behind the mounting surface you need for the contactor body and wiring clearance."},{"question":"What solid conductor sizes does 3RH1344-1AK20-ZX95 accept?","answer":"It accepts 2x 0.5 to 1.5 mm², 2x 0.75 to 2.5 mm², and 2x 4 mm² solid conductors — two wires per terminal for the smaller gauges, single for the 4 mm²."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1344-1AK20-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/3RH1344-1AK20-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}}