{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2122-1BE40-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2122-1BE40-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RH2122-1BE40-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2122-1BE40-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RH2122-1BE40-ZX95 contactor relay, size S00, 2 NO instantaneous contacts, 73 mm depth, 45 mm width, screw and snap-on 35 mm DIN rail mounting, switching currents rated for DC and AC loads.","salesMarkdown":"The Siemens 3RH2122-1BE40-ZX95 is a size S00 contactor relay with two instantaneous normally-open auxiliary contacts. It mounts on a 35 mm DIN rail via the screw and snap-on method, and fits in a 73 mm deep, 45 mm wide, 58 mm tall envelope — standard for the S00 frame in a control panel. The product extension for auxiliary switches is supported, so you can add more contacts on the same rail footprint without reworking the panel layout. ## Switching capability and ratings The contacts are rated for DC switching across a range of voltages: 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 loads, the relay handles 10 A at 230 V, 3 A at 400 V, 2 A at 500 V, and 1 A at 690 V. These numbers define the contactor's interrupting capacity at each voltage — useful for sizing on motor control or resistive circuits. The operating frequency at DC-12 duty is up to 1,000 operations per hour. Pollution degree 3, rated surge voltage resistance 6 kV. The substance prohibition date for RoHS-like compliance is October 1, 2009.","metaTitle":"Siemens 3RH2122-1BE40-ZX95 Contactor Relay, S00, 2 NO, 73 mm","metaDescription":"Siemens 3RH2122-1BE40-ZX95 contactor relay, size S00, 2 instantaneous NO contacts, screw & snap-on DIN rail mount, 73x45x58 mm. Available to order, quoted on request.","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":"58 mm","Upwards":"10 mm","Forwards":"10 mm","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"6 mm","Rated Value":"60 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":"2","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 NC contacts for auxiliary contacts":"2","number of NO contacts for auxiliary contacts":"2","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":"22 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":"https://cdn.aoctrl.com/15320624dddf0678bfe75cefeb943af1.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1684637&mlfb=3RH2122-1BE40-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH2122-1BE40-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What are the key dimensions of this contactor relay?","answer":"Depth is 73 mm, width is 45 mm, height is 58 mm — standard S00 frame size."},{"question":"What DC switching ratings does this part have?","answer":"It switches 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 DC."},{"question":"Where can I buy 3RH2122-1BE40-ZX95 and how is it quoted?","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":"Will 3RH2122-1BE40-ZX95 drop into a panel specified for 3RH2122-1BW40?","answer":"Both are size S00 contactor relays with the same 73x45x58 mm footprint and DIN rail mounting, so they are mechanically interchangeable in the same panel cutout. Electrical ratings differ, so verify the switching requirements match."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2122-1BE40-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/3RH2122-1BE40-ZX95 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}}