{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2901-1D-ZX90","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2901-1D-ZX90","canonicalUrl":"https://aoctrl.com/siemens/3RV2901-1D-ZX90","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2901-1D-ZX90","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS transverse auxiliary switch, 1 CO contact, screw-type terminals, 10 A at 690 V AC-12, for circuit-breakers 3RV2, multi-unit packaging of 500 units.","salesMarkdown":"The Siemens SIRIUS 3RV2901-1D-ZX90 is a transverse auxiliary switch that mounts on the front of 3RV2 circuit-breakers in frame sizes S00, S0, S2, and S3. It provides one changeover (CO) contact — that is, one normally-open and one normally-closed pair sharing a common terminal — wired via screw-type terminals. The contact carries 10 A at 690 V under AC-12 duty (resistive loads — the standard for auxiliary contact rating). That 10 A figure at 690 V is the maximum thermal current the contact can handle continuously. For inductive or motor-control circuits (AC-15), the rating drops to 0.5 A at 690 V — a meaningful derating that matters if you're switching contactor coils or small solenoid valves. At lower voltages the current capability is higher: 1 A at 24 V, 3 A at 230 V, and 1.5 A at 400 V. The 0.1 A rating at 250 V looks like a specific test condition (likely DC or a particular load type) rather than the general AC-12 curve. This is a current-production part, not subject to phase-out or last-time-buy. ## Wiring and packaging detail Screw-type terminals accept solid or stranded conductors: 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²), with the same ranges for finely stranded wire with ferrule. AWG equivalents are 20 to 14 for the auxiliary contact wiring. The part ships in multi-unit packaging of 500 units — a bulk format for OEM panel builders or large maintenance spares orders. ## Compliance documentation The substance prohibition date of 10/01/2009 aligns with RoHS compliance (EU RoHS took effect 2006, with later amendments). The SIRIUS series carries CE marking and UL/CSA certification per Siemens standard practice for this product family. Full compliance documentation (declaration of conformity, RoHS/REACH certificates) is available on request with the RFQ.","metaTitle":"Siemens 3RV2901-1D-ZX90 SIRIUS Aux Switch, 1CO, 10A at 690V","metaDescription":"Siemens SIRIUS 3RV2901-1D-ZX90 transverse auxiliary switch, 1 CO contact, screw terminals, 10 A at 690 V. Active production. Fits S00/S0/S2/S3 breakers. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"17 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Width":"45 mm","title":"3RV2901-1D-ZX90","Height":"12 mm","at 24 V":"1 A","at 110 V":"0.22 A","at 220 V":"0.1 A","at 230 V":"3 A","at 250 V":"0.1 A","at 400 V":"1.5 A","at 690 V":"10 A","description":"TRANSVERSE AUX. SWITCH, 1CO, SCREW CONNECTION, FOR CIRCUIT-BREAKERS 3RV2 MULTI-UNIT PACKAGING, 500 UNITS","During Storage":"-50 ... +80 °C","lifecycle_stage":"current","During Operation":"-20 ... +60 °C","Fastening Method":"plug-in fixing","Solid Or Stranded":"0.5 ... 2.5 mm²","Product Brand Name":"SIRIUS","Product Designation":"auxiliary switch, transverse on the front","Design Of The Product":"transverse auxiliary switches","Size Of The Circuit-Breaker":"S00, S0, S2, S3","Substance Prohibitance (Date)":"10/01/2009","for AWG cables for auxiliary contacts":"2x (20 ... 14)","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","operational current at AC-15 at 690 V rated value":"0.5 A","operational current of auxiliary contacts at AC-12 maximum":"10 A","Type Of Electrical Connection For Auxiliary And Control Circuit":"screw-type terminals","number of CO contacts of auxiliary contacts instantaneous contact":"1","number of NC contacts for auxiliary contacts instantaneous contact":"0","number of NO contacts for auxiliary contacts instantaneous contact":"0","AWG number as coded connectable conductor cross section for auxiliary contacts":"20 ... 14"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2ff3c07258326ead09b7c6e346bd39e4.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1088656&mlfb=3RV2901-1D-ZX90"},"ai":{"faq":[{"question":"What is the closest functional second-source for 3RV2901-1D-ZX90?","answer":"The 3RH2122-1AC60 is a SIRIUS auxiliary contactor with 2 CO contacts and screw terminals, but it is a standalone contactor (45 mm wide, 73 mm deep) that snaps onto DIN rail — not a front-mounted switch for 3RV2 breakers. It does not drop into the same physical location. For a direct fit, the 3RV2901-1D-ZX90 is the transverse auxiliary switch designed for the 3RV2 breaker family; no second-source from another manufacturer shares the same mounting interface."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2901-1D-ZX90","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/3RV2901-1D-ZX90 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}}