{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH7122-1AQ00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH7122-1AQ00","canonicalUrl":"https://aoctrl.com/siemens/3RH7122-1AQ00","factsUrl":"https://aoctrl.com/api/mcp/products/3RH7122-1AQ00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS contactor relay, size S00, 3RH7122-1AQ00, 2 NO + 2 NC auxiliary contacts, screw-type terminals, 6 A rated operational current at 400 V AC, IP20 front protection.","salesMarkdown":"It carries 2 normally-open and 2 normally-closed auxiliary contacts — the 22 E switching-element identifier tells you the contact stack is two NO, two NC, no main poles. The headline switching numbers tell you where this relay earns its keep. At 400 V AC, it's rated for 6 A — that's the thermal current the contacts can make and break in AC-15 or similar inductive pilot-duty circuits. At 230 V it also carries 6 A, at 110 V it's 1 A, and at 690 V it drops to 1 A. The 24 V rating of 6 A is the same as the 400 V figure, so it handles control transformers or PLC outputs at low voltage without derating. The contact reliability spec — acceptability for PLC control at 17 V, 5 mA — means these contacts will switch low-energy signals from a programmable controller without needing gold-plated or bifurcated contacts. That's a real advantage when you're driving inputs directly from a 24 V DC output card. The coil is AC only, with an apparent pick-up power of 27 VA and holding power of 5.4 VA at a power factor of 0.8 and 0.27 respectively. That's a standard SIRIUS S00 coil draw — your control transformer needs to handle the inrush, but the holding VA is low enough that several relays can be held on a small 50 VA supply. That gives you options in a tight cabinet. Operating temperature is -10 to +55 °C, storage from -25 to +70 °C.","metaTitle":"Siemens 3RH7122-1AQ00 SIRIUS Contactor Relay, 2NO+2NC, 6A at","metaDescription":"Siemens 3RH7122-1AQ00 SIRIUS contactor relay, size S00. 2NO+2NC auxiliary contacts, 6A rated at 400V AC. Screw terminals, IP20 front. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"72 mm","Width":"45 mm","title":"3RH7122-1AQ00","Height":"57.5 mm","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","description":"Contactor relay 2NO2NC AC 380V 50/60Hz size S00, screw terminal","During Storage":"-25 ... +70 °C","lifecycle_stage":"current","During Operation":"-10 ... +55 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting 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","Product Designation":"Contactor relay","at 24 V rated value":"6 A","at 110 V rated value":"1 A","at 220 V rated value":"0.3 A","at 230 V rated value":"6 A","at 400 V rated value":"6 A","at 50 Hz rated value":"380 V","at 60 Hz rated value":"380 V","at 690 V rated value":"1 A","protection class IP on the front":"IP20","Product Extension Auxiliary Switch":"Yes","Surge Voltage Resistance Rated Value":"28 kV","operating frequency at DC-13 maximum":"1 000 1/h","shock resistance with sine pulse at AC":"15g / 5 ms, 8g / 10 ms","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Contact Reliability Of Auxiliary Contacts":"acceptability for PLC control (17 V, 5 mA)","apparent holding power of magnet coil at AC":"5.4 VA","apparent pick-up power of magnet coil at AC":"27 VA","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","shock resistance at rectangular impulse at AC":"10g / 5 ms, 5g / 10 ms","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":"0.27","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","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/db37e2763998b3bfbcdac57d1dd42c7d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1533813&mlfb=3RH7122-1AQ00"},"ai":{"faq":[{"question":"What are the key switching ratings for the 3RH7122-1AQ00?","answer":"At 400 V AC it's rated 6 A, at 230 V AC also 6 A, at 110 V AC it's 1 A, and at 690 V AC it's 1 A. At 24 V AC it carries 6 A. The contacts are rated for PLC-level signals down to 17 V, 5 mA."},{"question":"What type of terminals does the 3RH7122-1AQ00 use?","answer":"Screw-type terminals for both auxiliary and control circuits. They accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm² solid or stranded wire."},{"question":"Will the 3RH7122-1AQ00 fit in a panel designed for a 3RT7017-1AQ02?","answer":"Both are S00 frame size on a 35 mm DIN rail, so the footprint and mounting are identical. The 3RH7122 is a contactor relay with 2NO+2NC auxiliary contacts and no main poles, while the 3RT7017 is a power contactor. Wiring differs — the relay has no power poles to land. Panel cutouts and rail position are the same."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH7122-1AQ00","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/3RH7122-1AQ00 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}}