{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1163-5MH32-0BH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1163-5MH32-0BH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1163-5MH32-0BH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1163-5MH32-0BH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 IEC frame 160 circuit breaker, 3-pole, breaking capacity class M, Icu=55kA @ 415V, In=63A, starter protection TM120M, undervoltage release 24V DC, 2 auxiliary switches HQ, 1 trip alarm switch HQ, nut keeper kit.","salesMarkdown":"The Siemens 3VA1163-5MH32-0BH0 is a 3-pole IEC frame 160 molded-case circuit breaker with a 63 A rating and a 55 kA breaking capacity at 415 V (class M). The TM120M thermal-magnetic trip unit provides starter protection: the thermal element tracks motor heating, the magnetic pickup is adjustable 5–15 x In for short-circuit-only protection (no overload function on this variant). The built-in undervoltage release (UVR) at 24 V DC drops the breaker on control-voltage loss — typical for emergency-stop or safety circuits where a voltage-monitored coil holds the mechanism closed. ## Deployment context — where this lands in a panel The nut keeper kit holds the busbar or cable lugs in place during vibration — a detail that matters on machine-tool or conveyor panels where transport rattles loosen terminations. The two auxiliary switches HQ and the trip alarm switch HQ give the PLC or safety relay a dry-contact status: one NO/NC pair for breaker position, one for fault trip. The 24 V DC UVR coil pulls about the same inrush as a small relay; verify your 24 V DC supply can hold the dropout threshold (typically 70–35 % of rated voltage) without browning out other loads on the same loop.","metaTitle":"Siemens 3VA1163-5MH32-0BH0 Circuit Breaker, 63A, 55kA @ 415V","metaDescription":"Siemens 3VA1163-5MH32-0BH0 IEC frame 160 circuit breaker, 63A, 55kA breaking capacity @ 415V, starter protection TM120M, UVR 24V DC. Current lifecycle stage. Quoted to order.","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=182500&mlfb=3VA1163-5MH32-0BH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1163-5MH32-0BH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1163-5MH32-0BH0 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time, not from a static listing."},{"question":"What is the 55 kA breaking capacity at 415 V mean for panel design?","answer":"The Icu=55 kA @ 415 V means this breaker can safely interrupt fault currents up to 55,000 A at that voltage without failing — the key figure for meeting the panel's short-circuit current rating (SCCR) under IEC 60947-2. Class M is a medium breaking capacity tier, suitable for most industrial distribution panels where the prospective fault current stays under that threshold."},{"question":"What is the difference between this variant and a standard 3VA1 with overload protection?","answer":"This variant (TM120M, AM) provides short-circuit protection only — the magnetic trip adjusts 5–15 x In, but there is no thermal overload element. It is designed for starter protection where the motor overload relay handles the running overcurrent, and the breaker only clears faults. A standard 3VA1 with a TM trip includes both thermal and magnetic elements for combined overload and short-circuit protection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1163-5MH32-0BH0","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/3VA1163-5MH32-0BH0 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}}