{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2344-2AP00-0KA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2344-2AP00-0KA0","canonicalUrl":"https://aoctrl.com/siemens/3RH2344-2AP00-0KA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2344-2AP00-0KA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, auxiliary contactor, 3RH2344-2AP00-0KA0, size S00, 4 NO contacts, 230 V AC 50/60 Hz coil, screw and snap-on mounting on 35 mm DIN rail.","salesMarkdown":"## Integrator note — SIRIUS 3RH2344-2AP00-0KA0 The Siemens SIRIUS 3RH2344-2AP00-0KA0 is a size S00 auxiliary contactor with 4 normally open (NO) instantaneous contacts, rated for a 230 V AC coil at both 50 Hz and 60 Hz. The coil holds across 0.8 to 1.1 times rated voltage at 50 Hz, 0.85 to 1.1 at 60 Hz; dropout below that range is clean, which matters for safety-circuit interlocking where a held-in contactor is a hazard. ## Rated currents and switching capability The 4 NO contacts carry 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V — these are thermal current ratings for the contact block, not motor-starting duty. For DC switching, the same contacts handle 4.7 A at 60 V, dropping to 0.26 A at 600 V.","metaTitle":"Siemens 3RH2344-2AP00-0KA0 SIRIUS Auxiliary Contactor, 4 NO,","metaDescription":"Siemens SIRIUS 3RH2344-2AP00-0KA0 auxiliary contactor, size S00, 4 NO contacts, 230 V 50/60 Hz coil. Rated 10 A at 24 V. Active production. Quoted to order. RoHS compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"121 mm","Width":"45 mm","at AC":"4 ... 15 ms","at DC":"10 000 1/h","Height":"70 mm","Upwards":"10 mm","Forwards":"10 mm","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"6 mm","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","During Storage":"-55 ... +80 °C","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail","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","Solid Or Stranded":"2x (0,5 ... 4 mm²)","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Product Designation":"Auxiliary contactor","at 24 V rated value":"10 A","at 60 V rated value":"4.7 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"3 A","at 220 V rated value":"1.2 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 440 V rated value":"0.5 A","at 50 Hz rated value":"230 V","at 500 V rated value":"2 A","at 60 Hz rated value":"230 V","at 600 V rated value":"0.26 A","at 690 V rated value":"1 A","Instantaneous Contact":"4","Relative Humidity Minimum":"10 %","Substance Prohibitance (Date)":"10/01/2009","Product Extension Auxiliary Switch":"No","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (20 ... 12)","operating frequency at DC-12 maximum":"1 000 1/h","operating frequency at DC-13 maximum":"1 000 1/h","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 ... 2.5 mm²)","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","with low demand rate according to SN 31920":"40 %","Finely Stranded Without Core End Processing":"2x (0.5 ... 2.5 mm²)","apparent holding power of magnet coil at AC":"5.7 VA","apparent pick-up power of magnet coil at AC":"37 VA","with high demand rate according to SN 31920":"73 %","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","contact rating of auxiliary contacts according to UL":"A600 / Q600","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","Inductive Power Factor With The Holding Power Of The Coil":"0.25","Type Of Electrical Connection For Auxiliary And Control Circuit":"spring-loaded 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","design of the miniature circuit breaker for short-circuit protection of the auxiliary circuit up to 230 V":"C characteristic: 6 A; 0.4 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/85b18a457fb7c95f8089ba45f8a4476b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=300661&mlfb=3RH2344-2AP00-0KA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH2344-2AP00-0KA0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of the 3RH2344-2AP00-0KA0?","answer":"It is a size S00 auxiliary contactor with 4 NO contacts, a 230 V AC 50/60 Hz coil, rated 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V. Mechanical endurance is 10 million cycles."},{"question":"What is the width and depth of the 3RH2344-2AP00-0KA0?","answer":"Width is 45 mm, depth is 121 mm, height is 70 mm — the S00 frame size."},{"question":"Will 3RH2344-2AP00-0KA0 fit in a panel wired for 3RH2362-2AF00?","answer":"Both are S00 frame contactors on 35 mm DIN rail with the same 45 mm width and 121 mm depth footprint, so the mechanical fit and wiring clearance are identical. The difference is contact configuration — this one has 4 NO, while the 3RH2362-2AF00 has a different contact arrangement — so verify the control circuit schematic before substitution."},{"question":"Where can I buy 3RH2344-2AP00-0KA0 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."},{"question":"What compliance documentation does the 3RH2344-2AP00-0KA0 carry?","answer":"RoHS compliance is documented with a substance prohibition date of October 2009. As a SIRIUS product, it carries CE marking and is designed to IEC 60947-5-1. UL and CSA file numbers are available through the standard Siemens documentation channel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2344-2AP00-0KA0","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/3RH2344-2AP00-0KA0 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}}