{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1321-0GC10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1321-0GC10","canonicalUrl":"https://aoctrl.com/siemens/3RV1321-0GC10","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1321-0GC10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV1321-0GC10 circuit breaker for starter combinations, 0.63 A continuous, 100 kA breaking capacity at 400 V AC, 3-pole, screw terminals, DIN-rail mount.","salesMarkdown":"Rated at 0.63 A continuous current, it protects small motor loads up to 0.18 kW at 400 V AC, with a massive 100 kA breaking capacity at 400 V — that SCCR headroom means it clears high fault currents without upstream coordination headaches. Terminals accept solid or stranded wire: 2x 1–2.5 mm² and 2x 2.5–6 mm² per clamp, or AWG 14–10 for the main contacts. That dual-range grip handles both control wiring and power tails without piggyback lugs. Dimensions: 45 mm wide, 97 mm tall, 96 mm deep — standard 3-module footprint on the rail. The 100 kA breaking capacity at 400 V is the same across 240 V, 500 V, and 690 V — full-range performance, no derating at higher voltages. That's unusual for a compact breaker and simplifies selectivity studies. Rated insulation voltage 690 V, surge withstand 6 kV. The 5.5 W power dissipation at rated current (1.8 W per pole) is low enough that you can pack these side-by-side without thermal derating in most enclosures. No ground fault or phase failure detection built in — this is a straightforward thermal-magnetic breaker for starter duty. If you need those functions, add an external relay or step up to the SIRIUS 3RV2 series with electronic trip. Operating frequency max 15 operations per hour at AC-3 — fine for occasional start/stop on a conveyor or pump, not for high-cycling applications like a stamping press.","metaTitle":"Siemens 3RV1321-0GC10 SIRIUS Circuit Breaker, 0.63 A, 100 kA","metaDescription":"Siemens 3RV1321-0GC10 SIRIUS circuit breaker for starter combinations. Rated 0.63 A continuous, 100 kA breaking at 400 V AC. DIN-rail mount, IP20 front. Active production. Quoted t","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":"5.5 W","Substance Prohibitance (Date)":"01.05.2012 00:00:00","Continuous Current Rated Value":"0.63 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":"1.8 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":"0.63 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=136419&mlfb=3RV1321-0GC10","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1321-0GC10/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1321-0GC10","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/3RV1321-0GC10 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}}