{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1122-1BB40-ZW97","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1122-1BB40-ZW97","canonicalUrl":"https://aoctrl.com/siemens/3RH1122-1BB40-ZW97","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1122-1BB40-ZW97","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, size S00, 3RH1122-1BB40-ZW97, 24 V DC coil, 4-pole, screw and snap-on mounting, IP20 front.","salesMarkdown":"It carries 4 contacts — 2 normally open and 2 normally closed — so it's built for signaling and interlocking duties inside a motor control center, not for switching main motor current. The coil pulls 3.2 W to close and holds at the same 3.2 W, which matters when you're budgeting a 24 V DC supply rail in the panel. This is a 4-pole auxiliary contactor — two make, two break. The contacts are rated for switching at various control voltages: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V. Those are the AC switching currents for the auxiliary circuits, not the main power path. If you're interlocking a 400 V motor starter, the 3 A rating at that voltage tells you the contact can handle the pilot duty without welding shut. The contacts are rated for 100 million mechanical operations and show a contact reliability of one incorrect switching per 100 million at 17 V, 1 mA — that's the low-energy switching spec for PLC-level signals, so it'll pick up dry contact inputs without trouble. Mounts with screws or snaps onto a DIN rail — that's the standard panel integration for a size S00 contactor. It fits in a 45 mm wide slot, 57.5 mm tall, 72 mm deep. Operating temperature runs from -25 °C to +60 °C, storage from -55 °C to +80 °C, and it shrugs off 10g shocks at 5 ms — fine for a vibrating panel on a conveyor line or a pump skid. ## Wiring and compliance Terminals accept solid wire: two wires of 0.5-1.5 mm², two of 0.75-2.5 mm², or a single 4 mm². This is a current-production part in the SIRIUS line. The -ZW97 suffix is a Siemens special version code.","metaTitle":"Siemens 3RH1122-1BB40-ZW97 SIRIUS Auxiliary Contactor, 24 V","metaDescription":"Siemens SIRIUS 3RH1122-1BB40-ZW97 auxiliary contactor, size S00, 24 V DC coil, 4 contacts (2 NO + 2 NC), IP20 front, screw/snap-on mount, current 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":"24 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)":"07/01/2006","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","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","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)","Touch Protection Against Electrical Shock":"finger-safe","with low demand rate according to SN 31920":"40 %","Of Auxiliary Contacts Instantaneous Contact":"0","with high demand rate according to SN 31920":"75 %","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","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=283413&mlfb=3RH1122-1BB40-ZW97","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1122-1BB40-ZW97/alternatives.json"},"ai":{"faq":[{"question":"What wire sizes does this contactor accept?","answer":"Terminals accept solid wire: two wires of 0.5 to 1.5 mm², two wires of 0.75 to 2.5 mm², or one wire of 4 mm². AWG equivalents are 2x (20-16), 2x (18-14), and 1x 12."},{"question":"What compliance documentation is available?","answer":"RoHS compliance dated to July 1, 2006. The front protection class is IP20. Surge voltage resistance of 6 kV is listed. The part is designed for pollution degree 3 environments per IEC standards."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1122-1BB40-ZW97","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/3RH1122-1BB40-ZW97 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}}