{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1344-1AF00-0KA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1344-1AF00-0KA0","canonicalUrl":"https://aoctrl.com/siemens/3RH1344-1AF00-0KA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1344-1AF00-0KA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RH1344-1AF00-0KA0, auxiliary contactor, size S00, 4 instantaneous NO contacts, screw and snap-on mounting, 45 mm width.","salesMarkdown":"The 3RH1344-1AF00-0KA0: The contact block is rated 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V — these are the thermal current ratings for the auxiliary contacts, so they handle the control loads (PLC inputs, relay coils, indicator lamps) at those voltage levels without derating. The 6 kV rated surge voltage resistance means the contactor withstands transients common in industrial mains, so you don't need external suppression for the contact gap itself. Mechanical life is typical 10 million operating cycles, and contact reliability is specified as one incorrect switching operation per 100 million operations at 17 V, 1 mA — this matters for low-energy signal switching (e.g., 24 VDC PLC inputs) where oxide films on silver contacts can cause intermittent failures; this contactor is designed to switch those dry circuits reliably. Width is 45 mm, depth 111 mm, height 57.5 mm. Solid conductor cross-sections accepted: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and 2x 4 mm² — that's two conductors per clamp for the smaller sizes, useful for daisy-chaining control wiring without extra terminals. ## Shock and vibration Shock resistance is 10g / 5 ms and 5g / 10 ms — this is the rating for the contactor body and contacts to remain closed under mechanical shock. If your panel is on a vibrating conveyor or near a large press, this part holds its state through those events.","metaTitle":"Siemens 3RH1344-1AF00-0KA0 SIRIUS Auxiliary Contactor, 4 NO,","metaDescription":"Siemens SIRIUS 3RH1344-1AF00-0KA0 auxiliary contactor, 4 instantaneous NO contacts, size S00, 45 mm width, 10 A at 24 V, IP20, current production.","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":"110 V","at 500 V rated value":"2 A","at 60 Hz rated value":"110 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","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","operational current at AC-12 maximum":"10 A","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=507512&mlfb=3RH1344-1AF00-0KA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1344-1AF00-0KA0/alternatives.json"},"ai":{"faq":[{"question":"What are the key contact ratings?","answer":"The 4 NO contacts are rated 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V. Mechanical life is 10 million cycles typical."},{"question":"What is the physical size and mounting?","answer":"Width 45 mm, depth 111 mm, height 57.5 mm. It mounts via screw and snap-on to a 35 mm DIN rail. Mounting position allows +/-180° rotation and +/-22.5° tilt."},{"question":"What conductor sizes does it accept?","answer":"Solid conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and 2x 4 mm² per clamp."},{"question":"What compliance documentation is available?","answer":"The part has a substance prohibitance date of 07/01/2006 (RoHS compliance). It carries a 6 kV surge voltage resistance rating and pollution degree 3 for industrial environments."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1344-1AF00-0KA0","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/3RH1344-1AF00-0KA0 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}}