{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1321-0HC10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1321-0HC10","canonicalUrl":"https://aoctrl.com/siemens/3RV1321-0HC10","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1321-0HC10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV1321-0HC10, circuit breaker for starter combinations, 3-pole, 0.8 A, 100 kA at 400 V AC, screw terminals, IP20.","salesMarkdown":"Rated at 0.8 A continuous current, it's sized for small motor loads up to 0.18 kW at 400 V AC (AC-3 duty). The headline number here is the 100 kA breaking capacity, which holds across the full voltage range from 240 V up to 690 V AC — that's a very high interrupt rating for a 0.8 A device, meaning it can safely clear a fault on a high-capacity transformer or a stiff industrial grid without the arc flashing over to adjacent gear. Depth is 96 mm, height 97 mm. Screw-type terminals on both main and auxiliary circuits accept 2x (1... 2.5 mm²) solid or stranded, or 2x (2.5... 6 mm²) — also AWG 14–10. Strip length and torque per the nameplate; the dual-wire capacity is handy for daisy-chaining the line side without a separate terminal block. ## Operating conditions and ratings Shock rated at 25g / 11 ms — fine for most industrial machinery but not extreme rail or marine shock without additional damping. Power dissipation is 7.25 W in hot operating state (2.4 W per pole), so factor that into panel thermal calculations if you're packing several in a small enclosure. Maximum switching frequency is 15 operations per hour at AC-3 — that's typical for a motor-starting duty cycle; don't plan on rapid cycling like a solenoid.","metaTitle":"Siemens 3RV1321-0HC10 SIRIUS Circuit Breaker, 0.8 A, 100 kA","metaDescription":"Siemens SIRIUS 3RV1321-0HC10 circuit breaker for starter combinations. 0.8 A continuous, 100 kA breaking capacity at 400 V AC. 3-pole, screw terminals, IP20. Active production. Sou","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"96 mm","Solid":"2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²)","Width":"45 mm","Height":"97 mm","Stranded":"2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²)","Backwards":"0 mm","At The Side":"0 mm","Rated Value":"690 V","During Storage":"-50 ... +80 °C","lifecycle_stage":"current","During Operation":"-20 ... +60 °C","During Transport":"-50 ... +80 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Shock Resistance":"25g / 11 ms","Mounting Position":"any","Product Brand Name":"SIRIUS","Product Designation":"circuit breaker","at 400 V rated value":"0.18 kW","Design Of The Product":"for starter combinations","Ground Fault Detection":"No","Phase Failure Detection":"No","For Main Current Circuit":"screw-type terminals","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":"100 kA","at AC at 690 V rated value":"100 kA","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"7.25 W","Substance Prohibitance (Date)":"01.05.2012 00:00:00","Continuous Current Rated Value":"0.8 A","at AWG cables for main contacts":"2x (14 ... 10)","protection class IP on the front":"IP20","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","operating frequency at AC-3 maximum":"15 1/h","Surge Voltage Resistance Rated Value":"6 000 V","at AC in hot operating state per pole":"2.4 W","Finely Stranded With Core End Processing":"2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²)","Number Of Poles For Main Current Circuit":"3","Touch Protection Against Electrical Shock":"finger-safe","number of CO contacts for auxiliary contacts":"0","operational current at AC-3 at 400 V rated value":"0.8 A","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Design Of The Overcurrent Release And Short-Circuit Release":"magnetic","Arrangement Of Electrical Connectors For Main Current Circuit":"front side","Product Function Removable Terminal For Auxiliary And Control Circuit":"No","Mechanical Service Life (Switching Cycles) Of The Main Contacts Typical":"100 000"}},"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=356385&mlfb=3RV1321-0HC10","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1321-0HC10/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3RV1321-0HC10?","answer":"Pricing and availability are confirmed at quote time. Submit an RFQ against this order code; the part is sourced through independent distribution and quoted to order."},{"question":"Will 3RV1321-0HC10 drop into a panel specified around 3RV1011-0GA10 without rewiring?","answer":"Both are 45 mm wide SIRIUS circuit breakers on the same DIN-rail footprint, so mechanical fit is the same. The key difference is the current rating — 3RV1321-0HC10 is 0.8 A, while the 3RV1011-0GA10 is a different rating. Verify the motor FLA matches before swapping; the terminal type and wire range are identical screw-type terminals."},{"question":"What compliance documentation does this brand provide for 3RV1321-0HC10?","answer":"RoHS compliance is documented with a substance prohibition date of 01.05.2012. The part carries IP20 finger-safe touch protection and is designed to IEC/EN standards for circuit breakers in starter combinations. Specific UL/CSA file numbers are not in this record, but Siemens typically provides declarations of conformity on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1321-0HC10","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/3RV1321-0HC10 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}}