{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2450-5HK32-0DC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2450-5HK32-0DC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2450-5HK32-0DC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2450-5HK32-0DC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA2 IEC frame 630, breaking capacity class M, 3-pole, line protection ETU340, In=500A, Icu=55kA @ 415V, undervoltage release 208-230 V AC, auxiliary switch changeover H.","salesMarkdown":"The Siemens 3VA2450-5HK32-0DC0 is a 3-pole molded case circuit breaker on the 3VA2 IEC frame 630, rated for line protection with an ETU340 electronic trip unit. Overload protection is adjustable from 200A to 500A, with short-circuit protection fixed at 14 x In, giving the commissioning engineer room to coordinate downstream feeders. ## Trip unit and settings The ETU340 provides LI (long-time and instantaneous) protection. Long-time pickup Ir is adjustable from 200A to 500A, matching the In=500A rating. Instantaneous pickup Ii is fixed at 14 x In, so the breaker clears hard faults at 7000A. No ground-fault module here — this is a straight line-protection build, typical for feeder breakers in a switchboard. ## Accessories integrated An auxiliary switch changeover H is also fitted, giving a dry contact for PLC status input or SCADA alarm. Both are factory-installed, not field-add kits. This is a current-production Siemens catalog number. No direct pin-compatible alternate exists — the 3VA2 frame is a specific IEC design with a unique mounting footprint and accessory rail. If you need a dual-source option, Siemens offers the 3VA2 platform across multiple trip units and accessories, but each order code is a fixed configuration.","metaTitle":"Siemens 3VA2450-5HK32-0DC0 MCCB, 500A, 55kA @ 415V","metaDescription":"Siemens 3VA2 IEC frame 630 MCCB, 3-pole, ETU340 LI protection, In=500A, Icu=55kA @ 415V. Undervoltage release 208-230 V AC. Available to order — request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"lifecycle_stage":"current"}},"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=1550740&mlfb=3VA2450-5HK32-0DC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2450-5HK32-0DC0/alternatives.json"},"ai":{"faq":[{"question":"What is the closest alternative to 3VA2450-5HK32-0DC0 in the Siemens MCCB family?","answer":"There is no direct pin-compatible alternate. The 3VA2 frame is a specific IEC design; changing the trip unit or accessories requires a different order code. For a similar rating, look at the 3VA2 frame with ETU340 and In=500A but different accessories — each configuration is a unique MPN."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2450-5HK32-0DC0","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/3VA2450-5HK32-0DC0 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}}