{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2440-1AP00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2440-1AP00","canonicalUrl":"https://aoctrl.com/siemens/3RH2440-1AP00","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2440-1AP00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, size S00, 4 NO instantaneous contacts, 3RH2440-1AP00, screw and snap-on mounting onto 35 mm DIN rail, 73 mm depth, 90 mm width.","salesMarkdown":"It mounts on a 35 mm DIN rail via screw or snap-on fastening, with a depth of 73 mm, width of 90 mm, and height of 57.5 mm — the standard S00 footprint that slides into any panel already laid out for this frame size. Each NO contact is rated 10 A at 24 V AC (50/60 Hz) and also 10 A at 230 V AC — that's the resistive load curve the contact can handle continuously. At higher voltages the current drops: 3 A at 400 V, 1 A at 690 V, and for DC switching you get 10 A at 24 V, 4.7 A at 60 V, down to 0.26 A at 600 V. The arcing time sits between 10 and 15 ms, which is typical for a contactor of this class and tells you the contact gap clears the arc fast enough for most control circuits. Mechanical service life is 5 million operations typical — that's the number of times the armature can cycle before wear becomes a concern. ## Mounting and wiring flexibility Wire terminations accept 2x 0.5 to 1.5 mm², 2x 0.75 to 2.5 mm², or 2x 4 mm² solid or stranded.","metaTitle":"Siemens 3RH2440-1AP00 SIRIUS Auxiliary Contactor, 4 NO, S00","metaDescription":"Siemens SIRIUS 3RH2440-1AP00 auxiliary contactor, 4 NO contacts, size S00, 73 mm depth. Screw and snap-on 35 mm DIN rail. Rated 10 A at 24 V / 230 V. Current production. Quoted to","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"73 mm","Width":"90 mm","at AC":"4 ... 15 ms","at DC":"10 000 1/h","title":"3RH2440-1AP00","Height":"57.5 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","description":"Contactor relay, latched, 4 NO, 230 V AC, 50 / 60 Hz, Size S00, screw terminal","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 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 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":"5 000 000","at 110 V rated value":"3 A","at 220 V rated value":"1.2 A","at 230 V rated value":"10 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":"Yes","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 2x 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 ... 1.5 mm²), 2x (0.75 ... 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 %","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 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":"40 E","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.25","Of The Contactor With Added Auxiliary Switch Block Typical":"5 000 000","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","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/20369b43b747e2d36614a7669ececa85.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=278811&mlfb=3RH2440-1AP00"},"ai":{"faq":[{"question":"What is the depth of 3RH2440-1AP00?","answer":"The 3RH2440-1AP00 has a depth of 73 mm, width of 90 mm, and height of 57.5 mm."},{"question":"Where can I buy 3RH2440-1AP00 and how is it quoted?","answer":"The 3RH2440-1AP00 is sourced and quoted to order against an RFQ through independent distribution, with availability and current pricing confirmed at quote time."},{"question":"Will 3RH2440-1AP00 drop into a panel specified for 3RH2422-1AB00?","answer":"Both are SIRIUS size S00 contactors with the same DIN-rail footprint, so the 3RH2440-1AP00 will physically fit in the same panel location. The difference is contact configuration — the 3RH2440-1AP00 carries 4 NO contacts; the 3RH2422-1AB00 has a different contact arrangement. Verify your control circuit's NO/NC requirements before substituting."},{"question":"What compliance documentation does Siemens provide for 3RH2440-1AP00?","answer":"The 3RH2440-1AP00 has a RoHS compliance date of October 1, 2009, and as a SIRIUS series product it is documented with UL, CSA, and CE certifications through Siemens standard documentation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2440-1AP00","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/3RH2440-1AP00 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}