{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1021-0HA10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1021-0HA10","canonicalUrl":"https://aoctrl.com/siemens/3RV1021-0HA10","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1021-0HA10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, motor protection circuit breaker, 3RV1021-0HA10, 0.8 A continuous rated current, Trip Class 10, 100 kA breaking capacity at 400 V AC.","salesMarkdown":"The Siemens 3RV1021-0HA10 is a SIRIUS motor protection circuit breaker rated for 0.8 A continuous current with Trip Class 10, designed to protect motors up to 0.18 kW at 400 V AC. Breaking capacity is a flat 100 kA across the voltage range from 240 V through 690 V AC, so it handles high-fault-current panels without cascading upstream breakers. ## DIN-rail footprint and terminal specs Width is 45 mm, depth 96 mm, height 97 mm. Zero clearance needed at the back or sides for heat dissipation — mount in any position. The screw terminals accept two conductors per pole: solid 1–2.5 mm² and 2.5–6 mm², or stranded with ferrules in the same ranges. AWG equivalent is 2× (14–10) for the main contacts. ## Phase-failure detection and auxiliary switch readiness Built-in phase-failure detection trips the breaker if one line drops — critical for preventing single-phasing on delta-connected motors. Ground-fault detection is not included. The product accepts an auxiliary switch (sold separately), so you can wire a status signal back to the PLC or safety relay without an extra contactor block.","metaTitle":"Siemens 3RV1021-0HA10 SIRIUS Motor Protection Circuit Breake","metaDescription":"Siemens 3RV1021-0HA10 SIRIUS motor protection circuit breaker, 0.8 A continuous, Trip Class 10, 100 kA breaking capacity at 400 V. Current lifecycle. Sourced to order.","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","Trip Class":"CLASS 10","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 motor protection","Ground Fault Detection":"No","Phase Failure Detection":"Yes","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":"thermomagnetic","Arrangement Of Electrical Connectors For Main Current Circuit":"front side","Product Component Removable Terminal For Auxiliary And Control Circuit":"No","Mechanical Service Life (Switching Cycles) Of The Main Contacts Typical":"100 000","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"0.55 ... 0.8 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=498483&mlfb=3RV1021-0HA10","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1021-0HA10/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3RV1021-0HA10?","answer":"100 kA at 240 V, 400 V, 500 V, and 690 V AC — a flat curve across the operating range."},{"question":"Will 3RV1021-0HA10 drop into a panel specified around 3RV1011-0GA10?","answer":"The 3RV1021-0HA10 shares the same 45 mm width and DIN-rail mounting standard, so the physical footprint is compatible, but verify the continuous current and trip class against your motor nameplate — the 0.8 A rating and Class 10 curve differ from the 3RV1011-0GA10."},{"question":"What compliance documentation does Siemens provide for 3RV1021-0HA10?","answer":"The part carries a substance prohibition date of 01.05.2012, indicating RoHS compliance per EU directive. Standard Siemens documentation includes CE declaration and UL/CSA recognition per the SIRIUS family listing."},{"question":"Where can I buy 3RV1021-0HA10?","answer":"Sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1021-0HA10","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/3RV1021-0HA10 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}}