{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2122-1AU00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2122-1AU00","canonicalUrl":"https://aoctrl.com/siemens/3RH2122-1AU00","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2122-1AU00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, size S00, 3RH2122-1AU00, 2 NO instantaneous contacts, screw and snap-on mounting on 35 mm DIN rail, 73 mm depth, 45 mm width, 57.5 mm height.","salesMarkdown":"It mounts via screw or snap-on onto a standard 35 mm DIN rail, with a 73 mm depth, 45 mm width, and 57.5 mm height — a compact footprint for control-panel integration where auxiliary switching is needed alongside a main contactor or motor starter. ## Rated switching capacity and voltage range The 3RH2122-1AU00 is rated for switching at 24 V (10 A), 60 V (4.7 A), 110 V (3 A), 220 V (1.2 A), 230 V (10 A), 400 V (3 A), 440 V (0.5 A), 500 V (2 A), 600 V (0.26 A), and 690 V (1 A), with a maximum rated voltage of 240 V at 50/60 Hz. These ratings cover the typical control-circuit voltages found in industrial panels — 24 VDC for PLC outputs, 110–230 VAC for pilot devices, and 400–690 V for higher-voltage auxiliary circuits. The 10 A rating at 24 V and 230 V means it can handle moderate pilot-duty loads without an intermediate relay. ## Mounting and environmental tolerances Operating temperature range is -25 to +60 °C, storage -55 to +80 °C, with a pollution degree of 3 (conductive pollution typical in industrial control panels). The part carries a substance prohibition date of 10/01/2009, indicating RoHS compliance from that date forward. Minimum relative humidity is 10 %. The SIRIUS series typically provides IEC, UL, CSA, and CE documentation on request — confirm specific certification marks needed for your jurisdiction at quote time.","metaTitle":"Siemens 3RH2122-1AU00 SIRIUS Auxiliary Contactor, Size S00,","metaDescription":"Siemens 3RH2122-1AU00 SIRIUS auxiliary contactor, size S00, 2 NO instantaneous contacts. Rated 10 A at 24 V AC/DC, 690 V max. Screw/snap-on 35 mm DIN rail. Current lifecycle stage.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"73 mm","Width":"45 mm","at AC":"4 ... 15 ms","at DC":"10 000 1/h","Height":"57.5 mm","Upwards":"10 mm","Forwards":"10 mm","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"6 mm","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","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","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 50 Hz rated value":"240 V","at 500 V rated value":"2 A","at 60 Hz rated value":"240 V","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","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 %","apparent holding power of magnet coil at AC":"5.7 VA","apparent pick-up power of magnet coil at AC":"37 VA","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":"AC","contact rating of auxiliary contacts according to UL":"A600 / Q600","Inductive Power Factor With Closing Power Of The Coil":"0.8","Identification Number And Letter For Switching Elements":"22 E","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.25","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":"$19.05","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/6e81c7f420c5214f3872ac5b27f9a23c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=492659&mlfb=3RH2122-1AU00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH2122-1AU00/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RH2122-1AU00 and get a price?","answer":"The 3RH2122-1AU00 is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing."},{"question":"What is the closest functional second-source for 3RH2122-1AU00?","answer":"The 3RH2122-2AV00 is a peer variant in the same SIRIUS S00 family, but it carries different contact configurations or coil voltages — verify the specific contact arrangement and coil rating against your BOM before substituting."},{"question":"What compliance documentation does Siemens provide for 3RH2122-1AU00?","answer":"The part is RoHS-compliant per the substance prohibition date of 10/01/2009. Siemens typically provides IEC, UL, CSA, and CE declarations for the SIRIUS series — request specific certificates at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2122-1AU00","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/3RH2122-1AU00 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}}