{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1122-1BE40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1122-1BE40","canonicalUrl":"https://aoctrl.com/siemens/3RH1122-1BE40","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1122-1BE40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RH1122-1BE40 auxiliary contactor, size S00, 60 V DC coil, 2 NO instantaneous contacts, screw and snap-on mounting, IP20 front protection.","salesMarkdown":"## Auxiliary Contactor for Control Circuit Switching ## Switching Capacity and Contact Reliability Rated operational current varies with voltage: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, 2 A at 500 V, and 1 A at 690 V. This derating curve reflects the arc extinction capability at higher voltages and must be respected when selecting the contactor for a given control voltage. ## Mounting and Wiring Flexibility The 3RH1122-1BE40 mounts via screw or snap-on onto a DIN rail, occupying 45 mm width, 57.5 mm height, and 72 mm depth. Terminals accept solid conductors: 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², and 2x 4 mm². This covers most control wiring gauges used in industrial panels. The product extension for auxiliary switches is supported, allowing field addition of contact blocks. Substance prohibition date per RoHS is 01.07.2006, confirming compliance with the original RoHS directive.","metaTitle":"Siemens 3RH1122-1BE40 SIRIUS Auxiliary Contactor, 60 V DC, 2","metaDescription":"Siemens SIRIUS 3RH1122-1BE40 auxiliary contactor, size S00, 60 V DC coil, 2 NO contacts, IP20 front, screw/snap-on mount, active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"72 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²","Width":"45 mm","Height":"57.5 mm","Rated Value":"60 V","Initial Value":"0.8","During Storage":"-55 ... +80 °C","Leading Contact":"0","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","During Transport":"-55 ... +80 °C","Fastening Method":"screw and snap-on mounting","Full-Scale Value":"1.1","Shock Resistance":"10g / 5 ms and 5g / 10 ms","Delayed Switching":"0","Lagging Switching":"0","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","Product Brand Name":"SIRIUS","Contact Reliability":"one incorrect switching operation of 100 million switching operations (17 V, 1 mA)","Degree Of Pollution":"3","Product Designation":"Auxiliary contactor","at 24 V rated value":"10 A","Of Contactor Typical":"30 000 000","at 110 V rated value":"1 A","at 220 V rated value":"0.27 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 500 V rated value":"2 A","at 690 V rated value":"1 A","Instantaneous Contact":"2","For Auxiliary Contacts":"0","Make-Before-Break Switching":"0","Substance Prohibitance (Date)":"01.07.2006 00:00:00","protection class IP on the front":"IP20","Product Extension Auxiliary Switch":"Yes","closing power of magnet coil at DC":"3.2 W","holding power of magnet coil at DC":"3.2 W","reference code acc. to IEC 81346-2":"K","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","operational current at AC-12 maximum":"10 A","with low demand rate acc. to SN 31920":"40 %","with high demand rate acc. to SN 31920":"75 %","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)","Touch Protection Against Electrical Shock":"finger-safe","Of Auxiliary Contacts Instantaneous Contact":"0","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","B10 value with high demand rate acc. to SN 31920":"1 000 000; With 0.3 x Ie","Identification Number And Letter For Switching Elements":"22 E","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Required Spacing With Side-By-Side Mounting At The Side":"0 mm","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"}},"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=491720&mlfb=3RH1122-1BE40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1122-1BE40/alternatives.json"},"ai":{"faq":[{"question":"What are the key switching ratings for 3RH1122-1BE40?","answer":"The contactor carries 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, 2 A at 500 V, and 1 A at 690 V. It has 2 normally open instantaneous contacts with a mechanical endurance of 30 million cycles."},{"question":"What is the coil power consumption of 3RH1122-1BE40?","answer":"The DC coil draws 3.2 W for both closing and holding, which is a constant load on the control supply."},{"question":"What mounting options does 3RH1122-1BE40 support?","answer":"It supports screw fixing or snap-on mounting to a DIN rail. The mounting position allows ±180° rotation on a vertical surface and ±22.5° tilt forward/backward."},{"question":"What conductor sizes does the terminal accept?","answer":"Terminals accept solid conductors: 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², and 2x 4 mm²."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1122-1BE40","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/3RH1122-1BE40 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}}