{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2140-1BG40-0AA6","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2140-1BG40-0AA6","canonicalUrl":"https://aoctrl.com/siemens/3RH2140-1BG40-0AA6","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2140-1BG40-0AA6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, 4 NO, Size S00, 73 mm depth, 45 mm width, screw and snap-on DIN rail mounting.","salesMarkdown":"## Part identity and mounting constraints The Siemens 3RH2140-1BG40-0AA6 is a SIRIUS auxiliary contactor in Size S00, providing 4 normally open instantaneous contacts for control circuit switching. It mounts via screw and snap-on onto a 35 mm DIN rail, with a depth of 73 mm, width of 45 mm, and height of 57.5 mm. The auxiliary contacts are rated 10 A at 24 V, 10 A at 230 V, 3 A at 400 V, and 1 A at 690 V. At 60 V the rating is 4.7 A, at 110 V it is 3 A, at 220 V it is 1.2 A, at 440 V it is 0.5 A, at 500 V it is 2 A, and at 600 V it is 0.26 A. The mechanical life is typically 30,000,000 operating cycles. ## Coil and environmental specifications The DC magnet coil has a closing power of 4 W and a holding power of 4 W. Pollution degree is 3, and the minimum relative humidity is 10 %. ## Wiring and clearance requirements Terminals accept solid or stranded wire: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm². The product designation confirms it is an auxiliary contactor with auxiliary switch extension capability.","metaTitle":"Siemens 3RH2140-1BG40-0AA6 SIRIUS Auxiliary Contactor, 4 NO,","metaDescription":"Siemens SIRIUS 3RH2140-1BG40-0AA6 auxiliary contactor, 4 NO contacts, Size S00, 73 mm depth. Active production. Screw and snap-on DIN rail mount. RoHS compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"73 mm","Width":"45 mm","at AC":"10 000 1/h","at DC":"7 ... 13 ms","Height":"57.5 mm","Upwards":"10 mm","Forwards":"10 mm","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"6 mm","Rated Value":"125 V","Initial Value":"0.8","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","Full-Scale Value":"1.1","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":"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 500 V rated value":"2 A","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","closing power of magnet coil at DC":"4 W","holding power of magnet coil at DC":"4 W","Surge Voltage Resistance Rated Value":"6 kV","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","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 2x 12","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 %","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":"DC","contact rating of auxiliary contacts according to UL":"A600 / Q600","Identification Number And Letter For Switching Elements":"40 E","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","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,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=360591&mlfb=3RH2140-1BG40-0AA6","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH2140-1BG40-0AA6/alternatives.json"},"ai":{"faq":[{"question":"What are the key dimensions of this auxiliary contactor?","answer":"The depth is 73 mm, width is 45 mm, and height is 57.5 mm. It mounts on a 35 mm DIN rail with screw and snap-on fastening."},{"question":"What compliance documentation does this part have?","answer":"The part is RoHS compliant with a substance prohibition date of October 1, 2009. It is designed to IEC standards for pollution degree 3."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2140-1BG40-0AA6","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/3RH2140-1BG40-0AA6 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}}