{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2021-0KA20-Z X95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2021-0KA20-Z-X95","canonicalUrl":"https://aoctrl.com/siemens/3RV2021-0KA20-Z-X95","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2021-0KA20-Z%20X95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV2 motor starter protector, size S0, Class 10, A-release 0.9...1.25 A, N-release 16 A, spring-type terminal, standard switching capacity.","salesMarkdown":"The Siemens 3RV2021-0KA20-Z X95 is a SIRIUS 3RV2 motor starter protector in size S0, rated for Class 10 motor protection with an adjustable thermal overload (A-release) covering 0.9 to 1.25 A and a fixed magnetic short-circuit release (N-release) at 16 A. The 16 A magnetic release handles bolted faults upstream of the contactor; coordination with a downstream contactor (e.g., SIRIUS 3RT2) keeps let-through energy within the contactor's rated making capacity. Production status is active per Siemens' current lifecycle designation — no end-of-life notification or last-time-buy window on this order code. RoHS compliance dates to October 1, 2009, and REACH Article 33 candidate-list information is available on request. ## Sourcing This is a current-production Siemens catalog item, sourced through our independent distribution network. Submit an RFQ for the quantity you need — we confirm availability and current pricing at quote time. The standard packaging unit is a single piece (reusable bulk packaging in packs of 35 for volume orders).","metaTitle":"Siemens 3RV2021-0KA20-Z X95 Motor Starter Protector, 0.9-1.2","metaDescription":"Siemens SIRIUS 3RV2 motor starter protector, size S0, Class 10, 0.9-1.25 A thermal release, 16 A magnetic release, spring terminals. Active production, RoHS compliant. Sourced to o","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"title":"3RV2021-0KA20-Z X95","Group Code":"R711","description":"Circuit breaker size S0 for motor protection, Class 10 A-release 0.9...1.25 A N-release 16 A Spring-type terminal Standard switching capacity Reusable packaging Pack = 35 units","Product Group":"5333","Product class":"A: Standard product which is a stock item could be returned within the returns guidelines/period.","Quantity Unit":"1 Piece","Product Family":"SIRIUS 3RV2 motor starter protectors","lifecycle_stage":"current","Packaging Quantity":"1","Export Control Regulations":"AL : N / ECCN : N","Packaging dimensions (L x W x H)":"133.00 x 52.5 x 106.5 mm","Compliance with the substance restrictions according to RoHS directive":"Since: 01-10-09","REACH Art. 33 Duty to inform according to the current list of candidates":"Reach Information"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/1f72c33db784616eda3c336bc7b91b5d.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/3RV2021-0KA20-ZX95?tree=CatalogTree"},"ai":{"faq":[{"question":"Where can I buy the 3RV2021-0KA20-Z X95 and get a price?","answer":"We source this active Siemens part to order through our distribution network. Send an RFQ with your target quantity; we confirm availability and pricing at quote time."},{"question":"What do the A-release and N-release ratings mean on this motor protector?","answer":"The A-release (0.9-1.25 A) is the adjustable thermal overload element — set it to the motor's full-load current within that window. The N-release (16 A) is the fixed magnetic short-circuit trip; it clears bolted faults above that threshold independently of the thermal setting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2021-0KA20-Z-X95","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/3RV2021-0KA20-Z-X95 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}