{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1321-1HH10-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1321-1HH10-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RV1321-1HH10-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1321-1HH10-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS circuit breaker for starter combinations, 3RV1321-1HH10-ZX95, 8 A continuous, 50 kA breaking at 400 V AC, 3 poles, screw terminals, DIN rail mount.","salesMarkdown":"Rated 8 A continuous current, it handles a 3 kW motor at 400 V AC (AC-3 duty), and its 50 kA breaking capacity at 400 V AC means it can safely interrupt a short-circuit fault up to that level without the upstream device needing to clear it — critical for coordination in a motor branch circuit. The 45 mm width (3-module footprint) and 96 mm depth fit standard distribution boards and motor control centers. Any mounting position works, and zero clearance at the sides and rear simplifies panel layout. Breaking capacity drops with voltage: 50 kA at 240 V and 400 V AC, then 10 kA at 500 V, and 4 kA at 690 V. If your panel feeds a 690 V motor, verify the fault current at that point — the 4 kA rating may require upstream current-limiting fuses. The 100 000 mechanical cycles on the main contacts cover most conveyor and pump duty cycles; the 15 operations per hour at AC-3 is fine for normal starting but not for jogging or inching applications. Power dissipation runs 3.5 W total (1.2 W per pole) at rated current — negligible for thermal budget in a standard enclosure. Main circuit terminals are screw-type, accepting 2x (1 to 2.5 mm²) solid or stranded, or 2x (2.5 to 6 mm²) — covers most panel wiring up to 6 mm². AWG equivalents are 2x (14 to 10) for the main contacts. No ground fault or phase failure detection on this variant — if those are required, look at the 3RV2 series with integrated phase monitoring.","metaTitle":"Siemens 3RV1321-1HH10-ZX95 SIRIUS Circuit Breaker, 8 A, 50 k","metaDescription":"Siemens SIRIUS 3RV1321-1HH10-ZX95 circuit breaker for starter combinations. 8 A continuous, 50 kA breaking at 400 V AC, 3 kW motor rating. DIN rail mount, IP20 front. Sourced to or","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","Maximum":"2 000 m","Stranded":"2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²)","Backwards":"0 mm","At The Side":"0 mm","Rated Value":"690 V","On The Front":"IP20","Mounting type":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","During Storage":"-50 ... +80 °C","at AC-3 maximum":"15 1/h","lifecycle_stage":"current","Auxiliary switch":"Yes","During Operation":"-20 ... +60 °C","During Transport":"-50 ... +80 °C","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 starter combinations","For Auxiliary Contacts":"0","Ground fault detection":"No","Phase failure detection":"No","For Main Current Circuit":"screw-type terminals","at AC at 240 V rated value":"50 kA","at AC at 400 V rated value":"50 kA","at AC at 500 V rated value":"10 kA","at AC at 690 V rated value":"4 kA","at AC-3 rated value maximum":"690 V","Of The Main Contacts Typical":"100 000","at AC in hot operating state":"3.5 W","Continuous current rated value":"8 A","at AWG conductors for main contacts":"2x (14 ... 10)","Surge voltage resistance rated value":"6 000 V","at AC in hot operating state per pole":"1.2 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","For Auxiliary And Control Current Circuit":"screw-type terminals","Removable Terminal For Auxiliary And Control Circuit":"No","Design of the overcurrent release and short-circuit release":"magnetic","Arrangement of electrical connectors for main current circuit":"front side"}},"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=221513&mlfb=3RV1321-1HH10-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1321-1HH10-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3RV1321-1HH10-ZX95 at different voltages?","answer":"50 kA at 240 V and 400 V AC, 10 kA at 500 V AC, and 4 kA at 690 V AC. The 690 V rating is the one to watch — verify your available fault current at that voltage level."},{"question":"Where can I buy 3RV1321-1HH10-ZX95 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ with your quantity and target delivery date for current pricing and availability confirmation."},{"question":"Will 3RV1321-1HH10-ZX95 drop into a panel specified around 3RV6011-0CA10?","answer":"Both are 45 mm wide, 3-pole SIRIUS breakers on 35 mm DIN rail, so the footprint and mounting are identical. The 3RV1321 carries 8 A / 3 kW at 400 V with 50 kA breaking; the 3RV6011 is a different current rating — verify your motor FLA against the 8 A continuous rating before swapping."},{"question":"What compliance documentation does Siemens provide for 3RV1321-1HH10-ZX95?","answer":"As a standard SIRIUS product, it carries CE marking for the European market and is designed to IEC/EN 60947-2 and 60947-4-1. RoHS and REACH declarations are available from Siemens upon request. UL/CSA listings are typical for the SIRIUS family but should be confirmed against the specific variant for your jurisdiction."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1321-1HH10-ZX95","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/3RV1321-1HH10-ZX95 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}}