{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1344-2AF00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1344-2AF00","canonicalUrl":"https://aoctrl.com/siemens/3RH1344-2AF00","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1344-2AF00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, 3RH1344-2AF00, 4 NO instantaneous contacts, size S00, 45 mm width, screw and snap-on mounting, IP20 front protection.","salesMarkdown":"This is the part for extending control-circuit contact density on a contactor or relay base — it mirrors the main contactor's coil state to additional signal paths. Rated for 10 A at 24 V, 6 A at 230 V, and 1 A at 690 V, the contact ratings cover the typical control-voltage range found in IEC panels. The 4 NO arrangement gives you four independent make contacts that close when the coil picks up — no overlap with NC or changeover contacts on this variant. Mounts via screw and snap-on to DIN rail. Terminals accept 2x solid conductors from 0.25 to 2.5 mm². Depth is 114 mm, height 60 mm — check clearance to the gland plate if the panel is shallow. RoHS compliance date is 01.07.2006, covering the EU RoHS directive. ## Contact reliability and operating conditions Shock resistance is 10g / 5 ms and 5g / 10 ms. Pollution degree 3, meaning it tolerates conductive pollution in industrial environments where occasional condensation occurs.","metaTitle":"Siemens 3RH1344-2AF00 SIRIUS Auxiliary Contactor, 4 NO, Size","metaDescription":"Siemens 3RH1344-2AF00 SIRIUS auxiliary contactor, 4 NO contacts, size S00, 45 mm width, screw and snap-on DIN rail mount, IP20 front. Active lifecycle, available to order. Request","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":"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)":"01.07.2006 00:00:00","protection class IP on the front":"IP20","Product Extension Auxiliary Switch":"No","reference code acc. to IEC 81346-2":"K","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (24 ... 14)","operational current at AC-12 maximum":"10 A","with low demand rate acc. to SN 31920":"40 %","with high demand rate acc. to SN 31920":"75 %","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","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 V·A","apparent pick-up power of magnet coil at AC":"27 V·A","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","B10 value with high demand rate acc. to SN 31920":"1 000 000; With 0.3 x Ie","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":"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=372872&mlfb=3RH1344-2AF00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1344-2AF00/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RH1344-2AF00 and get current pricing?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead-time commitment."},{"question":"What is the closest functional alternative to 3RH1344-2AF00?","answer":"The 3RH2362-2AF00 is a peer in the same SIRIUS family but carries a different contact configuration — verify your control-circuit wiring before substituting. The 3RH1344-2AF00 has 4 NO contacts; the 3RH2362-2AF00 may differ in NO/NC count or coil voltage options."},{"question":"What is the depth of 3RH1344-2AF00?","answer":"The depth is 114 mm. Combined with the 45 mm width and 60 mm height, the S00 footprint fits standard DIN-rail enclosures — verify clearance to the gland plate or door if the panel is shallow."},{"question":"What terminal wire size does 3RH1344-2AF00 accept?","answer":"Each terminal accepts 2x solid conductors from 0.25 to 2.5 mm². Use ferruled stranded wire within the same cross-section range for reliable connections."},{"question":"Will 3RH1344-2AF00 drop into a panel wired for 3RH2362-2AF00?","answer":"Both are S00 frame size with the same 45 mm width and DIN-rail snap-on mounting, so the mechanical fit is identical. However, the contact configuration differs — 3RH1344-2AF00 has 4 NO instantaneous contacts. Verify that your control circuit expects exactly 4 NO makes before swapping; if the original design used NC or changeover contacts from the 3RH2362-2AF00, rewiring is required."},{"question":"What compliance documentation does Siemens provide for 3RH1344-2AF00?","answer":"RoHS compliance is confirmed with a substance prohibition date of 01.07.2006. The reference code per IEC 81346-2 is K. Protection class on the front is IP20. For specific UL, CSA, or REACH declarations, request the manufacturer's compliance package with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1344-2AF00","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/3RH1344-2AF00 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}}