{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2321-1HC10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2321-1HC10","canonicalUrl":"https://aoctrl.com/siemens/3RV2321-1HC10","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2321-1HC10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS circuit breaker, 3RV2321-1HC10, for starter combinations, 45 mm wide, 100 kA interrupting at 400 V AC, screw and snap-on DIN rail mount.","salesMarkdown":"It mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 60715, with a 45 mm width and 97 mm cube footprint, so it fits standard panel layouts without extra adaptors. Rated interrupting capacity hits 100 kA at 240 V and 400 V AC, 42 kA at 500 V, and 4 kA at 690 V. The 100 kA figure at 400 V means this breaker can safely clear a fault up to 100,000 symmetrical amps without welding contacts or cascading damage upstream — critical for high-fault panels near large transformers. Screw-type terminals on the main current circuit accept 2x (1–2.5 mm²) solid or stranded, or 2x (2.5–10 mm²). Main contact screws are M4. Any mounting position allowed.","metaTitle":"Siemens 3RV2321-1HC10 SIRIUS Circuit Breaker, 100 kA @ 400 V","metaDescription":"Siemens 3RV2321-1HC10 SIRIUS circuit breaker for starter combinations. 100 kA SCCR at 400 V AC, 45 mm wide, screw and snap-on DIN rail mount. Current lifecycle stage. Sourced to or","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"97 mm","Width":"45 mm","Height":"97 mm","Upwards":"50 mm","Forwards":"0 mm","Backwards":"0 mm","Downwards":"50 mm","At The Side":"30 mm","Rated Value":"20 ... 690 V","During Storage":"-50 ... +80 °C","at AC-3 maximum":"15 1/h","lifecycle_stage":"current","During Operation":"-20 ... +60 °C","During Transport":"-50 ... +80 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715","at AC-3e maximum":"15 1/h","For Main Contacts":"M4","Mounting Position":"any","Solid Or Stranded":"2x (1 ... 2.5 mm²), 2x (2.5 ... 10 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Circuit breaker","at 230 V rated value":"1 hp","at 240 V rated value":"100 kA","at 400 V rated value":"100 kA","at 480 V rated value":"8 A","at 500 V rated value":"42 kA","at 600 V rated value":"8 A","at 690 V rated value":"4 kA","Design Of The Product":"For starter combinations","Ground Fault Detection":"No","Phase Failure Detection":"No","For Main Current Circuit":"screw-type terminals","at 110/120 V rated value":"0.33 hp","at 200/208 V rated value":"2 hp","at 220/230 V rated value":"2 hp","at 460/480 V rated value":"5 hp","at 575/600 V rated value":"5 hp","at AC at 240 V rated value":"100 kA","at AC at 400 V rated value":"100 kA","at AC at 500 V rated value":"42 kA","at AC at 690 V rated value":"6 kA","Design Of Screwdriver Shaft":"Diameter 5 to 6 mm","Size Of The Circuit-Breaker":"S0","Size Of The Screwdriver Tip":"Pozidriv size 2","at AC-3 rated value maximum":"690 V","Of The Main Contacts Typical":"100 000","at AC in hot operating state":"9.25 W","at AC-3 at 400 V rated value":"8 A","at AC-3e rated value maximum":"690 V","Of Auxiliary Contacts Typical":"100 000","Substance Prohibitance (Date)":"10/01/2009","at AC-3e at 400 V rated value":"8 A","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"8 A","at AWG cables for main contacts":"2x (16 ... 12), 2x (14 ... 8)","Design Of The Short-Circuit Trip":"magnetic","Product Extension Auxiliary Switch":"Yes","Relative Humidity During Operation":"10 ... 95 %","Display Version For Switching Status":"Handle","Surge Voltage Resistance Rated Value":"6 kV","at AC in hot operating state per pole":"3.1 W","With Side-By-Side Mounting At The Side":"0 mm","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²), 1x 10 mm²","Number Of Poles For Main Current Circuit":"3","Product Function Short Circuit Protection":"Yes","with low demand rate according to SN 31920":"50 FIT","For Main Contacts With Screw-Type Terminals":"2 ... 2.5 N·m","with high demand rate according to SN 31920":"50 %","number of CO contacts for auxiliary contacts":"0","number of NC contacts for auxiliary contacts":"0","number of NO contacts for auxiliary contacts":"0","shock resistance according to IEC 60068-2-27":"25g / 11 ms","Electrical Endurance (Operating Cycles) Typical":"100 000","Size Of Contactor Can Be Combined Company-Specific":"S00, S0","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Arrangement Of Electrical Connectors For Main Current Circuit":"Top and bottom","Response Value Current Of Instantaneous Short-Circuit Trip Unit":"104 A","insulation voltage with degree of pollution 3 at AC rated value":"690 V"}},"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=333707&mlfb=3RV2321-1HC10","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV2321-1HC10/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RV2321-1HC10?","answer":"Sourced to order against an RFQ through independent distribution. Availability and current pricing confirmed at quote time."},{"question":"What is the interrupting capacity of 3RV2321-1HC10 at 400 V?","answer":"100 kA at 400 V AC, which means it can safely interrupt a fault up to 100,000 symmetrical amps at that voltage."},{"question":"Will 3RV2321-1HC10 drop into a panel specified for 3RV2021-1FA15?","answer":"Both are SIRIUS circuit breakers on 35 mm DIN rail with similar terminal ranges, but the 3RV2321-1HC10 is a different frame size (45 mm wide) — verify physical fit and interrupting capacity against the panel's fault current before swapping."},{"question":"What compliance documentation does Siemens provide for 3RV2321-1HC10?","answer":"Standard Siemens documentation includes RoHS and REACH declarations; UL and IEC certifications are typical for the SIRIUS line, but specific certs should be confirmed on the nameplate or via the manufacturer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2321-1HC10","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/3RV2321-1HC10 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}}