{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2122-1BE80","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2122-1BE80","canonicalUrl":"https://aoctrl.com/siemens/3RH2122-1BE80","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2122-1BE80","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, size S00, 2 instantaneous NO contacts, screw and snap-on mounting onto 35 mm DIN rail, 3RH2122-1BE80.","salesMarkdown":"It mounts via screw and snap-on onto 35 mm DIN rail, the standard for European control panels, and occupies a 45 mm wide footprint with 73 mm depth and 57.5 mm height — tight enough for dense gland-plate layouts where every millimeter of fill factor matters. ## Switching capacity — what the voltage-specific ratings tell you This contactor's contact ratings are specified per voltage, not a single blanket ampacity — the right way for a part that may see 24 VDC control circuits or 400 VAC motor auxiliaries in the same panel. At 24 V it switches 10 A; at 230 V it also handles 10 A, but at 400 V the rating drops to 3 A, and at 690 V it's 1 A. The 24 V and 230 V figures are the ones that govern most auxiliary contact applications — interposing relays, PLC output isolation, contactor coil feedback. That covers panels where the DIN rail runs horizontally or on a swing frame. Clearances: 10 mm upward, 10 mm forward, 10 mm downward, 6 mm at the side — no special breathing gap beyond standard S00 spacing. Operating temperature range is -25 to +60 °C, storage -55 to +80 °C, with pollution degree 3 (conductive pollution, typical for industrial enclosures without climate control).","metaTitle":"Siemens 3RH2122-1BE80 SIRIUS Auxiliary Contactor, S00, 2 NO","metaDescription":"Siemens 3RH2122-1BE80 SIRIUS auxiliary contactor, size S00, 2 instantaneous NO contacts. Screw and snap-on 35 mm DIN rail. Rated 10 A at 24 V, 10 A at 230 V. 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":"3RH2122-1BE80","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":"80 V","description":"Contactor relay, 2 NO + 2 NC, 80 V DC, Size S00, screw terminal","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":"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","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 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":"$24.13","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5d6411207a6a2d6be0241613b00ab39a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=260720&mlfb=3RH2122-1BE80"},"ai":{"faq":[{"question":"Where can I buy 3RH2122-1BE80 and what is the lead time?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock figures or lead-time numbers are published here, as supply conditions vary."},{"question":"Will 3RH2122-1BE80 drop into a panel specified around 3RH2122-1BW40 without rewiring?","answer":"Both parts share the SIRIUS S00 frame size and snap-on DIN rail mounting, so the mechanical fit is identical. The 1BW40 variant carries different contact configurations or coil voltages — verify the contact arrangement and coil rating on your BOM before substitution. The 1BE80 carries 2 instantaneous NO contacts."},{"question":"What compliance documentation does Siemens provide for 3RH2122-1BE80?","answer":"Siemens provides RoHS and REACH declarations for this product line. Specific compliance documentation (UL, IEC, CE) is available upon request with each order — confirm which certificates your project requires at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2122-1BE80","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/3RH2122-1BE80 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}}