{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1332-4EF42-0BG0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1332-4EF42-0BG0","canonicalUrl":"https://aoctrl.com/siemens/3VA1332-4EF42-0BG0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1332-4EF42-0BG0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 IEC frame 400 circuit breaker, 36kA Icu @ 415V, 4-pole, TM240 thermal-magnetic trip, In=320A, Ir=224-320A, Ii=5-10xIn, with undervoltage release 24 VDC and 1 auxiliary switch changeover.","salesMarkdown":"## What the 36 kA @ 415 V means for your line The 3VA1332-4EF42-0BG0 is a Siemens 3VA1 IEC frame 400 molded-case circuit breaker with a breaking capacity class S rated at Icu = 36 kA at 415 V AC. It's a 4-pole unit (three phases plus switched neutral, though the N conductor is unprotected in this variant), so it fits IEC distribution panels where neutral isolation is required but overcurrent protection on the neutral is not. The thermal-magnetic trip unit is a TM240, ATAM type, with a rated current In = 320 A. ## Built-in undervoltage release and auxiliary switch The UVR will trip the breaker if control voltage drops below its dropout threshold — standard for emergency-stop circuits or safety disconnects where loss of control power must open the main breaker. Also included is one auxiliary switch changeover contact (1 C/O), giving you a remote status signal for the breaker position (open/closed). Both accessories are integrated at the factory, so no field-kit installation or wiring into the breaker mechanism is needed. Panel builders should note this is an IEC frame 400 breaker; it occupies a standard 3VA1 mounting footprint and accepts the usual 3VA1 busbar and cable connection accessories.","metaTitle":"Siemens 3VA1332-4EF42-0BG0 Circuit Breaker, 320A, 36kA @ 415","metaDescription":"Siemens 3VA1332-4EF42-0BG0 IEC frame 400 circuit breaker, 36kA @ 415V breaking capacity, 320A TM240 thermal-magnetic protection. Current lifecycle stage. Quoted to order against RF","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=1421455&mlfb=3VA1332-4EF42-0BG0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1332-4EF42-0BG0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this breaker?","answer":"The breaking capacity class S is rated at Icu = 36 kA at 415 V AC, suitable for high-fault-current industrial distribution panels."},{"question":"What accessories are included with this order code?","answer":"Factory-installed undervoltage release 24 V DC, one auxiliary switch changeover contact, and a nut keeper kit for mounting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1332-4EF42-0BG0","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/3VA1332-4EF42-0BG0 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}}