{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1344-1BE40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1344-1BE40","canonicalUrl":"https://aoctrl.com/siemens/3RH1344-1BE40","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1344-1BE40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, size S00, 4 NO instantaneous contacts, 60 V DC coil, 10 A AC-12 rated operational current, screw and snap-on mounting, IP20 front protection.","salesMarkdown":"It carries four normally-open instantaneous contacts with no delayed, lagging, or make-before-break switching — a straight 4 NO block for straightforward signal extension or interlocking. The headline rating is 10 A at AC-12, which covers resistive and solid-state loads in control circuits — think PLC outputs, relay coils, and indicator lamps. The same contacts are rated 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V, so the voltage-dependent switching capacity is clearly defined per IEC 60947-5-1. For DC switching, the 60 V rated value with an initial make current of 0.8 A and full-scale 1.1 A means this is primarily an AC-rated block; DC derating applies below 60 V. Contact reliability is specified as one incorrect switching operation per 100 million cycles at 17 V, 1 mA — that is the dry-circuit performance for low-level signals, not the power-switching endurance. ## Mounting, wiring, and panel integration Fastening is screw and snap-on mounting — clips directly onto a DIN rail or screws to a backplate. Dimensions are 45 mm wide, 57.5 mm high, 111 mm deep — the S00 footprint. The screw terminals accept solid conductors: 2x 0.5 to 1.5 mm², 2x 0.75 to 2.5 mm², or 2x 4 mm². That's enough for two 4 mm² per terminal, which covers most control-circuit wiring without piggyback ferrules. ## Coil and environmental limits Shock resistance is 10g / 5 ms and 5g / 10 ms — sufficient for most industrial machinery but not for high-g mobile equipment. For compliance documentation: this is a Siemens SIRIUS component, so it carries CE marking under the Low Voltage Directive and typically comes with a manufacturer declaration of conformity. UL/CSA listings are common for the SIRIUS line, though not explicitly stated in this evidence set. The substance prohibition date confirms RoHS compliance from mid-2006 onward.","metaTitle":"Siemens 3RH1344-1BE40 SIRIUS Auxiliary Contactor, S00, 4 NO,","metaDescription":"Siemens 3RH1344-1BE40 SIRIUS auxiliary contactor, size S00, 4 NO contacts, 10 A AC-12 max, 60 V DC coil. IP20 front, screw/snap-on mounting. Active 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","Rated Value":"60 V","Initial Value":"0.8","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","Full-Scale Value":"1.1","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 500 V rated value":"2 A","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","closing power of magnet coil at DC":"3.2 W","holding power of magnet coil at DC":"3.2 W","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","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":"DC","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","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=82025&mlfb=3RH1344-1BE40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1344-1BE40/alternatives.json"},"ai":{"faq":[{"question":"What is 3RH1344-1BE40's listed depth (111 mm) on this component line?","answer":"The depth is 111 mm, with a width of 45 mm and height of 57.5 mm — the standard S00 frame size."},{"question":"What is 3RH1344-1BE40's listed solid (2x (0.5... 1.5 mm²), 2x (0.75... 2.5 mm²), 2x 4 mm²) on this component line?","answer":"The screw terminals accept solid conductors: 2x 0.5 to 1.5 mm², 2x 0.75 to 2.5 mm², or 2x 4 mm² per terminal."},{"question":"Will 3RH1344-1BE40 drop into a panel that was specified around 3RH2140-1BP40 without rewiring?","answer":"No — the 3RH1344-1BE40 is an S00 frame (45 mm wide), while the 3RH2140-1BP40 is an S0 frame (wider). The mounting footprint and terminal layout differ. Panel rework would be required."},{"question":"What compliance documentation does this brand provide for 3RH1344-1BE40 (RoHS, REACH, UL, IEC)?","answer":"RoHS compliance is confirmed with a substance prohibition date of July 1, 2006. As a Siemens SIRIUS component, it carries CE marking under the Low Voltage Directive. UL/CSA listings are typical for the SIRIUS line but not explicitly confirmed in this evidence set."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1344-1BE40","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/3RH1344-1BE40 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}}