{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1021-1HA10-ZW95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1021-1HA10-ZW95","canonicalUrl":"https://aoctrl.com/siemens/3RV1021-1HA10-ZW95","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1021-1HA10-ZW95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV1021-1HA10-ZW95 motor protection circuit breaker, 3-pole, 8 A, Trip Class 10, screw terminals, 100 kA breaking capacity at 400 V AC, IP20 front.","salesMarkdown":"The Siemens 3RV1021-1HA10-ZW95 is a SIRIUS motor protection circuit breaker — a 3-pole device sized for a 3 kW motor at 400 V AC, with a continuous current rating of 8 A and Trip Class 10 thermal overload protection. Any mounting position works. Screw terminals on both main and auxiliary circuits accept 1 to 2.5 mm² solid or stranded (two conductors per clamp), or 2.5 to 6 mm² for a single conductor. AWG 14 to 10 equivalent. Zero clearance needed at the sides or rear — 0 mm backwards and side spacing. IP20 on the front face means finger-safe from the panel front; the body itself is open-frame behind the panel, so enclosure selection needs to account for that. Trip Class 10 means the thermal bimetal trips within 10 seconds at 7.2× the current setting — standard for standard-duty motor starting where the acceleration time is under 10 seconds. For longer ramp times (high-inertia loads), a Class 20 or 30 would be needed. The 15 operations per hour maximum at AC-3 duty governs how often you can cycle this breaker under motor load — fine for a pump or fan cycling a few times an hour, but not for a rapid-reversing application. Rated insulation voltage 690 V, surge voltage resistance 6 kV. Power dissipation 9.25 W at rated current (3.1 W per pole).","metaTitle":"Siemens 3RV1021-1HA10-ZW95 SIRIUS Motor Protection Circuit B","metaDescription":"Siemens 3RV1021-1HA10-ZW95 SIRIUS motor protection circuit breaker, 8 A continuous, Trip Class 10, 100 kA at 400 V AC. Active production. Quoted to order against RFQ.","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":"3 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":"42 kA","at AC at 690 V rated value":"6 kA","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"9.25 W","Substance Prohibitance (Date)":"01.05.2012","Continuous Current Rated Value":"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":"3.1 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":"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":"5.5 ... 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=33911&mlfb=3RV1021-1HA10-ZW95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1021-1HA10-ZW95/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1021-1HA10-ZW95","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/3RV1021-1HA10-ZW95 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}}