{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1344-1AM20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1344-1AM20","canonicalUrl":"https://aoctrl.com/siemens/3RH1344-1AM20","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1344-1AM20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RH1344-1AM20 auxiliary contactor, size S00, 4 NO instantaneous contacts, screw and snap-on mounting, IP20 front, 45 x 57.5 x 111 mm.","salesMarkdown":"The contacts are rated for 10 A at 24 V, 6 A at 230 V, and derate to 1 A at 690 V — so at line voltage you lose headroom fast; keep the load within the published curve. ## Contact configuration and switching capability All four contacts are NO (instantaneous, no make-before-break or delayed action). That means this block cannot provide a NC feedback path unless you wire an external interposer — if your safety circuit needs a mirror contact, this isn't the part. The contacts are rated for 6 kV surge voltage, which gives reasonable margin for 400 VAC control circuits in industrial environments with pollution degree 3. Shock resistance is 10g for 5 ms and 5g for 10 ms — adequate for most industrial panels but not for high-vibration applications near crushers or large presses without additional damping.","metaTitle":"Siemens 3RH1344-1AM20 SIRIUS Auxiliary Contactor, 4 NO, S00,","metaDescription":"Siemens SIRIUS 3RH1344-1AM20 auxiliary contactor, 4 NO contacts, size S00, 45 mm wide, IP20 front. Rated 10 A at 24 V, 6 kV surge. Current production. Quoted to order.","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":"208 V","at 500 V rated value":"2 A","at 60 Hz rated value":"208 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=18676&mlfb=3RH1344-1AM20","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1344-1AM20/alternatives.json"},"ai":{"faq":[{"question":"What is the contact configuration on 3RH1344-1AM20?","answer":"It has 4 normally open (NO) instantaneous contacts. There are no NC, delayed, or make-before-break contacts on this block."},{"question":"What are the rated currents at different voltages?","answer":"Rated operational current is 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V. Derate accordingly for higher voltages."},{"question":"What is the depth of 3RH1344-1AM20?","answer":"The depth is 111 mm. Overall dimensions are 45 mm wide by 57.5 mm tall by 111 mm deep."},{"question":"What conductor sizes does the terminal accept?","answer":"It accepts solid conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and 2x 4 mm²."},{"question":"How do I get current pricing and availability for 3RH1344-1AM20?","answer":"Submit an RFQ through this listing. Availability and current pricing are confirmed at quote time through independent distribution channels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1344-1AM20","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/3RH1344-1AM20 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}}