{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1344-1AD00-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1344-1AD00-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RH1344-1AD00-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1344-1AD00-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, 3RH1344-1AD00-ZX95, size S00, 4 NO instantaneous contacts, screw and snap-on mounting, IP20 front, 10 A at 24 V.","salesMarkdown":"It switches control signals and auxiliary loads in motor starter and contactor assemblies, extending the contact count of a main contactor or providing isolated feedback to a PLC. Mounts via screw or snap-on to a DIN rail, fitting the standard 45 mm width of the S00 frame. Rated for 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V — these are the thermal continuous currents the contacts can carry in their respective AC voltage classes. The 6 kV surge voltage resistance (rated impulse withstand) means the contactor can handle transient overvoltages common in industrial control panels without flashover. Shock resistance of 10g / 5 ms and 5g / 10 ms covers most vibration environments in fixed industrial equipment. Terminals accept solid conductors: 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or 2x 4 mm². This covers standard control wiring up to 12 AWG. The 57.5 mm height and 111 mm depth fit within the S00 envelope, leaving room for adjacent devices on the same DIN rail. This allows installation in tight enclosures or non-standard panel layouts. The 3RH1344-1AD00-ZX95 is a standard catalog item within the SIRIUS family. No official successor has been announced; the order code remains the active procurement reference for new builds and MRO spares.","metaTitle":"Siemens 3RH1344-1AD00-ZX95 SIRIUS Auxiliary Contactor, 4 NO,","metaDescription":"Siemens 3RH1344-1AD00-ZX95 SIRIUS auxiliary contactor, size S00, 4 instantaneous NO contacts, screw/snap-on mount, IP20 front, 10 A at 24 V. Current production. Sourced 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":"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","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","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","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 ... 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=332336&mlfb=3RH1344-1AD00-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1344-1AD00-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this auxiliary contactor?","answer":"It has 4 NO instantaneous contacts, rated 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V. Surge voltage resistance is 6 kV. Mechanical endurance is 10 million operations typical."},{"question":"What wire sizes does the 3RH1344-1AD00-ZX95 accept?","answer":"Solid conductors: 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or 2x 4 mm² per terminal."},{"question":"What is the mounting method and position flexibility?","answer":"Screw or snap-on mounting to DIN rail. Mounting position allows ±180° rotation on a vertical surface and ±22.5° tilt forward/backward."},{"question":"What is the operating temperature range?","answer":"During operation: -25 °C to +60 °C. Storage and transport: -55 °C to +80 °C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1344-1AD00-ZX95","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-ZX95 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}}