{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2140-2BB40-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2140-2BB40-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RH2140-2BB40-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2140-2BB40-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, 3RH2140-2BB40-ZX95, size S00, 4 NO, 24 VDC coil, screw and snap-on mounting on 35 mm rail.","salesMarkdown":"It is designed for snap-on mounting onto a 35 mm standard mounting rail, with screw terminals accepting 2x (0.5 to 4 mm²) solid or stranded wire. The contactor occupies a 45 mm width, 70 mm height, and 73 mm depth, with a clearance of 10 mm upwards, forwards, and downwards, and 6 mm at the sides. The main contacts are rated 10 A at 230 V AC (AC-1 resistive load), 3 A at 400 V AC, and 1 A at 690 V AC. For DC switching, the contactor is rated 10 A at 24 V, 4.7 A at 60 V, and 0.26 A at 600 V. The mechanical endurance is 30 million operations typical, and the maximum switching frequency is 10,000 cycles per hour at AC. These ratings mean the contactor is suited for signal-level and auxiliary control circuits in motor starter assemblies, not for direct motor load switching. Relative humidity minimum 10%. The product is RoHS-compliant with substance prohibition date 10/01/2009.","metaTitle":"Siemens SIRIUS 3RH2140-2BB40-ZX95 Auxiliary Contactor, 24 VD","metaDescription":"Siemens SIRIUS 3RH2140-2BB40-ZX95 auxiliary contactor, 24 VDC coil, 4 NO contacts, size S00. Rated 10 A at 230 V AC. Active 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":"10 000 1/h","at DC":"7 ... 13 ms","title":"3RH2140-2BB40-ZX95","Height":"70 mm","Upwards":"10 mm","Forwards":"10 mm","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"6 mm","Rated Value":"24 V","description":"Contactor relay, 4 NO, 24 V DC, Size S00, Spring-type terminal Reusable packaging = 120 units","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 standard mounting 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 ... 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","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)","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":"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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/cdbd2c3ce54fd6719e2a9e17be56302d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=70464&mlfb=3RH2140-2BB40-ZX95"},"ai":{"faq":[{"question":"Where can I buy 3RH2140-2BB40-ZX95 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ to receive current pricing and availability."},{"question":"Will 3RH2140-2BB40-ZX95 drop into a panel that was specified around 3RH2140-1BP40 without rewiring?","answer":"Both are size S00 auxiliary contactors with the same mounting footprint on 35 mm rail, so the mechanical fit is identical. However, the coil voltage and contact configuration differ — the 3RH2140-2BB40-ZX95 has a 24 VDC coil and 4 NO contacts, while the 3RH2140-1BP40 has a different coil and contact arrangement. Verify the coil voltage and contact count match your circuit before substitution."},{"question":"What compliance documentation does this brand provide for 3RH2140-2BB40-ZX95?","answer":"The product is RoHS-compliant with a substance prohibition date of 10/01/2009. The manufacturer typically provides CE, UL, CSA, and IEC declarations on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2140-2BB40-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/3RH2140-2BB40-ZX95 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}}