{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2140-2AK60","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2140-2AK60","canonicalUrl":"https://aoctrl.com/siemens/3RH2140-2AK60","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2140-2AK60","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, size S00, 4 NO instantaneous contacts, screw and snap-on 35 mm DIN rail mounting, 73 mm depth, 45 mm width, 70 mm height.","salesMarkdown":"The Siemens 3RH2140-2AK60 is a SIRIUS auxiliary contactor in the S00 frame size, carrying 4 instantaneous normally-open contacts. It mounts via screw or snap-on onto a standard 35 mm DIN rail, with a 45 mm width and 73 mm depth that fits the S00 footprint — three units side by side occupy 135 mm of rail space. The coil is rated for 24 V at 50/60 Hz, with a pickup range of 0.8 to 1.1 times rated voltage at 50 Hz and 0.85 to 1.1 at 60 Hz. The 4 NO contacts handle 10 A at 24 V and 230 V, 3 A at 110 V and 400 V, 1.2 A at 220 V, and 0.26 A at 600 V. At DC voltages, the 60 V rating is 4.7 A, dropping to 0.5 A at 440 V and 0.26 A at 600 V. AC switching time is 4 to 15 ms. ## Environmental and installation Minimum relative humidity is 10%. Pollution degree 3.","metaTitle":"Siemens 3RH2140-2AK60 SIRIUS Auxiliary Contactor, 4 NO, S00,","metaDescription":"Siemens SIRIUS 3RH2140-2AK60 auxiliary contactor, 4 instantaneous NO contacts, S00 frame, 24V coil. 45mm wide, 73mm deep. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"73 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 standard mounting 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":"30 000 000","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":"110 V","at 500 V rated value":"2 A","at 60 Hz rated value":"120 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 ... 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 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":"10 000 000","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","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":"$19.05","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=78931&mlfb=3RH2140-2AK60","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH2140-2AK60/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RH2140-2AK60?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commitment."},{"question":"What is the depth of 3RH2140-2AK60?","answer":"The depth is 73 mm, with a width of 45 mm and height of 70 mm — the standard S00 footprint that fits three units per 135 mm of DIN rail."},{"question":"Will 3RH2140-2AK60 drop into a panel specified for 3RH2131-2AK60?","answer":"Both are S00-frame SIRIUS auxiliary contactors with the same 45 mm width and 73 mm depth, so the mechanical footprint is identical. The difference is contact configuration: 3RH2140-2AK60 carries 4 NO contacts, while 3RH2131-2AK60 has a different contact arrangement. Verify the contact count matches your schematic before swapping."},{"question":"What compliance documentation is available for 3RH2140-2AK60?","answer":"The part carries a RoHS substance prohibition date of October 1, 2009. Standard Siemens SIRIUS documentation includes the declaration of conformity and environmental compliance sheets available through the manufacturer's support portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2140-2AK60","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/3RH2140-2AK60 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}}