{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2140-1BM40-ZW97","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2140-1BM40-ZW97","canonicalUrl":"https://aoctrl.com/siemens/3RH2140-1BM40-ZW97","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2140-1BM40-ZW97","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RH2140-1BM40-ZW97, size S00 contactor relay, 4 NO instantaneous contacts, 24 VDC coil, screw and snap-on DIN-rail mount, 73 mm depth, 45 mm width.","salesMarkdown":"## Contactor relay, size S00, 4 NO, 24 VDC — panel fit and switching capacity The Siemens 3RH2140-1BM40-ZW97 is a size S00 contactor relay with four normally-open instantaneous contacts and a 24 VDC coil rated at 4 W closing and holding power. The DC switching capacity is specified per voltage: 10 A at 24 V, 4.7 A at 60 V, 3 A at 110 V, 1.2 A at 220 V, and 0.26 A at 600 V. For AC circuits the relay handles 10 A at 230 V and 400 V, 3 A at 400 V, and 1 A at 690 V. ## Mounting and clearance — DIN-rail integration These clearances must be maintained for proper arc quenching and heat dissipation. Wire termination accepts 2 × (0.5 to 1.5 mm²), 2 × (0.75 to 2.5 mm²), or 2 × 4 mm² solid or stranded conductors; AWG equivalents are 2 × (20 to 16), 2 × (18 to 14), or 2 × 12.","metaTitle":"Siemens 3RH2140-1BM40-ZW97 Contactor Relay, S00, 4 NO, 24 VD","metaDescription":"Siemens 3RH2140-1BM40-ZW97 contactor relay, size S00, 4 instantaneous NO contacts, 24 VDC coil. 73 mm depth, 45 mm width. Current production. Sourced to order against RFQ.","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","Height":"58 mm","Upwards":"10 mm","Forwards":"10 mm","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"6 mm","Rated Value":"220 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","Degree Of Pollution":"3","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 ... 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 %","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=1684629&mlfb=3RH2140-1BM40-ZW97","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH2140-1BM40-ZW97/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3RH2140-1BM40-ZW97?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is 3RH2140-1BM40-ZW97's listed depth and width?","answer":"The depth is 73 mm and the width is 45 mm, with a height of 58 mm. It occupies a single 45 mm DIN-rail module position."},{"question":"Will 3RH2140-1BM40-ZW97 drop into a panel specified around 3RH2140-1BP40 without rewiring?","answer":"Both are size S00 contactor relays with the same 45 mm width and DIN-rail snap-on mounting, so the mechanical fit is identical. The 1BP40 variant uses a different coil voltage; verify your control circuit voltage against the 24 VDC coil of the 1BM40 before substitution."},{"question":"What compliance documentation does this brand provide for 3RH2140-1BM40-ZW97?","answer":"The part carries a RoHS substance prohibition date of 10/01/2009, confirming RoHS compliance. It is rated for pollution degree 3 and surge voltage resistance of 6 kV per IEC 60947-1. Full declarations of conformity are available through the manufacturer's documentation portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2140-1BM40-ZW97","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/3RH2140-1BM40-ZW97 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}}