{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1344-2CB00-0KA0-ZW97","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1344-2CB00-0KA0-ZW97","canonicalUrl":"https://aoctrl.com/siemens/3RH1344-2CB00-0KA0-ZW97","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1344-2CB00-0KA0-ZW97","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, auxiliary contactor, size S00, 4 NO instantaneous contacts, 24 V 50/60 Hz coil, screw and snap-on mounting, IP20 front, 114 x 45 x 60 mm.","salesMarkdown":"It carries four normally open (4 NO) instantaneous contacts, with no delayed, lagging, or make-before-break switching — a straight four-pole NO block for straightforward interlocking or PLC output extension. The coil is rated 24 V at both 50 Hz and 60 Hz, with a tolerance range of 0.8...1.1 × rated voltage at 50 Hz and 0.85...1.1 at 60 Hz, so it holds in across a typical control supply sag. A built-in varistor surge suppressor handles coil transients — no external snubber needed for standard PLC or relay driver outputs. Switching capacity covers a wide voltage range: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V AC, so it handles everything from low-voltage DC interposing relays up to 690 V motor control circuit isolation. The contact reliability spec — one incorrect switching operation per 100 million at 17 V, 1 mA — means it is trustworthy for dry-contact PLC inputs where low-energy switching is critical. Terminals accept solid or stranded wire from 0.25 to 2.5 mm² (2 × conductors per clamp), which covers common control wiring sizes. Shock resistance is 10g at 5 ms and 5g at 10 ms, adequate for most machine-mounted panels.","metaTitle":"Siemens SIRIUS 3RH1344-2CB00-0KA0-ZW97 Auxiliary Contactor,","metaDescription":"Siemens SIRIUS 3RH1344-2CB00-0KA0-ZW97 auxiliary contactor, size S00, 4 NO contacts, 24 V 50/60 Hz coil, IP20 front, screw/snap-on mount. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"114 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"45 mm","Height":"60 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":"24 V","at 500 V rated value":"2 A","at 60 Hz rated value":"24 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","Design Of The Surge Suppressor":"with varistor","protection class IP on the front":"IP20","Product Extension Auxiliary Switch":"No","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (24 ... 14)","operational current at AC-12 maximum":"10 A","reference code according to IEC 81346-2":"K","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 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 %","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","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","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":"Cage Clamp 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=125405&mlfb=3RH1344-2CB00-0KA0-ZW97","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1344-2CB00-0KA0-ZW97/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to 3RH1344-2CB00-0KA0-ZW97?","answer":"The 3RH2362-2AF00 is a peer auxiliary contactor in the SIRIUS family. The key difference is contact configuration: the 3RH1344 has 4 NO, while the 3RH2362 has a different NO/NC count. Verify your circuit needs before substituting."},{"question":"What is the depth of 3RH1344-2CB00-0KA0-ZW97?","answer":"The depth is 114 mm, with a width of 45 mm and height of 60 mm."},{"question":"What wire sizes does the 3RH1344-2CB00-0KA0-ZW97 accept?","answer":"Each terminal accepts 2 × conductors from 0.25 to 2.5 mm² solid or stranded."},{"question":"What compliance documentation does this part carry?","answer":"The part is RoHS compliant per the substance prohibition date of 07/01/2006. Standard SIRIUS documentation includes CE and UL/CSA certifications per Siemens catalog data."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1344-2CB00-0KA0-ZW97","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/3RH1344-2CB00-0KA0-ZW97 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}}