{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1344-1AL00-0KA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1344-1AL00-0KA0","canonicalUrl":"https://aoctrl.com/siemens/3RH1344-1AL00-0KA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1344-1AL00-0KA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, 3RH1344-1AL00-0KA0, size S00, 4 NO instantaneous contacts, screw and snap-on mounting, 45 x 57.5 x 111 mm, IP20, 6 kV surge voltage resistance.","salesMarkdown":"Rated for 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V, the contacts handle typical PLC and relay loads across common control voltages. The 6 kV rated surge voltage resistance means it can be used in circuits with overvoltage category III without additional suppression on the contact gap. The 4 NO contact arrangement makes it a direct fit for applications needing a set of isolated auxiliary contacts — adding feedback signals, interlocking, or status indication to a contactor or motor starter. The S00 frame size (45 x 57.5 x 111 mm) matches the same mechanical envelope as the 3RT2 S00 contactor series, so the auxiliary block clips directly onto the contactor or sits beside it with shared DIN rail space. Terminals accept solid or ferruled stranded conductors: 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or 2x 4 mm² — enough for daisy-chaining control wiring through the same clamp. Rated for operation from -25 to +60 °C and storage/transport from -55 to +80 °C, with 10g/5 ms and 5g/10 ms shock resistance — suitable for industrial panels subject to vibration. RoHS compliance date is July 1, 2006, and pollution degree 3 rating means it tolerates conductive pollution in controlled environments (typical for industrial control panels).","metaTitle":"Siemens SIRIUS 3RH1344-1AL00-0KA0 Auxiliary Contactor, 4 NO,","metaDescription":"Siemens SIRIUS 3RH1344-1AL00-0KA0 auxiliary contactor, 4 NO contacts, size S00, 45x57.5x111 mm, screw and snap-on mounting, IP20, 6 kV surge, current lifecycle. 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":"125 V","at 500 V rated value":"2 A","at 60 Hz rated value":"125 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=405081&mlfb=3RH1344-1AL00-0KA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1344-1AL00-0KA0/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of 3RH1344-1AL00-0KA0?","answer":"The depth is 111 mm, which is standard for the S00 frame auxiliary contactor family."},{"question":"What wire sizes does the terminal accept?","answer":"The terminals accept 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), or 2x 4 mm² solid or ferruled stranded conductors."},{"question":"Will 3RH1344-1AL00-0KA0 drop into a panel that was specified around 3RH2362-2AF00 without rewiring?","answer":"Both are S00 frame auxiliary contactors with the same mounting footprint (45 mm width, DIN rail or screw), so the mechanical fit is identical. The 3RH1344-1AL00-0KA0 has 4 NO contacts only, while the 3RH2362-2AF00 has a different contact arrangement — check your circuit diagram to confirm the contact count and configuration matches before swapping."},{"question":"Where can I buy 3RH1344-1AL00-0KA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1344-1AL00-0KA0","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/3RH1344-1AL00-0KA0 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}}