{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1344-1AD00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1344-1AD00","canonicalUrl":"https://aoctrl.com/siemens/3RH1344-1AD00","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1344-1AD00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, 3RH1344-1AD00, 4 NO contacts, 10 A AC-12, S00 size, screw and snap-on mounting, 45 mm wide.","salesMarkdown":"It carries four normally-open (NO) instantaneous contacts, rated 10 A at AC-12 (resistive loads at 50/60 Hz), and 10 A at 24 V DC — enough to handle most pilot-duty and signal-level switching in a 24 VDC control loop, though the DC rating drops sharply at higher voltages (1 A at 110 V, 0.27 A at 220 V). Mounts via screw or snap-on to DIN rail. S00 footprint is 45 mm wide, 57.5 mm tall, 111 mm deep. Terminals accept solid or ferruled stranded wire: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm² — the dual-wire capacity is useful for daisy-chaining common signals without an extra terminal block. ## Environmental and life ratings Shock-rated at 10g / 5 ms and 5g / 10 ms — tough enough for machine-tool cabinets and conveyor lines, not for direct mounting on a vibrating pump skid without isolation.","metaTitle":"Siemens SIRIUS 3RH1344-1AD00 Auxiliary Contactor, 4 NO, 10 A","metaDescription":"Siemens SIRIUS 3RH1344-1AD00 auxiliary contactor, 4 NO contacts, 10 A AC-12 rated, S00 size, 45 mm wide. Active 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","Maximum":"2 000 m","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","At The Side":"0 mm","On The Front":"IP20","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","Mounting type":"screw and snap-on mounting","During Storage":"-55 ... +80 °C","Leading Contact":"0","lifecycle_stage":"current","Auxiliary switch":"No","During Operation":"-25 ... +60 °C","During Transport":"-55 ... +80 °C","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","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":"42 V","at 500 V rated value":"2 A","at 60 Hz rated value":"42 V","at 690 V rated value":"1 A","Instantaneous Contact":"4","For Auxiliary Contacts":"0","Make-Before-Break Switching":"0","Operating current at AC-12 maximum":"10 A","Surge voltage resistance rated value":"6 kV","Reference code acc. to DIN EN 61346-2":"K","Reference code acc. to DIN EN 81346-2":"K","with low demand rate acc. to SN 31920":"40 %","With Degree Of Pollution 3 Rated Value":"690 V","with high demand rate acc. to SN 31920":"75 %","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","at AWG conductors for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"screw-type terminals","Apparent holding power of magnet coil at AC":"4.6 V·A","Apparent pick-up power of magnet coil at AC":"27 V·A","Of Auxiliary Contacts Instantaneous Contact":"0","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","Inductive power factor with the holding power of the coil":"0.27","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=75849&mlfb=3RH1344-1AD00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1344-1AD00/alternatives.json"},"ai":{"faq":[{"question":"What is 3RH1344-1AD00's listed depth (111 mm) on this component line?","answer":"The depth is 111 mm — that is the dimension from the DIN-rail mounting face to the furthest point of the housing, not including wiring projection."},{"question":"What is 3RH1344-1AD00's listed solid (2x (0.5... 1.5 mm²), 2x (0.75... 2.5 mm²), 2x 4 mm²) on this component line?","answer":"The terminal accepts two conductors per clamp: 2x 0.5 to 1.5 mm², 2x 0.75 to 2.5 mm², or 2x 4 mm² — solid or ferruled stranded."},{"question":"Will 3RH1344-1AD00 drop into a panel that was specified around 3RT1017-1AD02 without rewiring?","answer":"Mechanically yes — same S00 footprint, same 45 mm width, same DIN-rail clip. Electrically no: the 3RT1017-1AD02 is a main contactor with a coil and power contacts; the 3RH1344-1AD00 is an auxiliary block with no coil. You would need to rewire the control circuit to feed the auxiliary block from the main contactor's auxiliary terminals or a separate relay."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1344-1AD00","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/3RH1344-1AD00 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}}