{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1150-5MH32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1150-5MH32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1150-5MH32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1150-5MH32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1150-5MH32-0AA0, molded case circuit breaker, starter protection version, 3-pole, 50 A, TM120M thermal-magnetic release, 187 kA at 240 V.","salesMarkdown":"Rated 50 A continuous at 40 °C (derates to 45 A at 70 °C), it uses a TM120M thermal-magnetic release that handles the inrush without nuisance tripping on motor start. At 55 °C it drops to 49 A, at 60 °C to 48 A, and at 70 °C to 45 A. That thermal curve is what matters when the MCC is in a cement plant or steel mill control room where summer temps push past 45 °C. The interrupting ratings across voltages tell you where this breaker can be placed in a selective coordination study. At 240 V it clears 187 kA, at 415 V it clears 121 kA, at 440 V it clears 75.6 kA, and at 500 V and 690 V it clears 7.5 kA. The TM120M release is a fixed thermal-magnetic type; no electronic trip unit adjustments, no communication module, no undervoltage release or phase failure detection on this variant. It's a straightforward, no-frills motor-circuit protector that does one job and does it without extra wiring. The width is a standard 3-inch (76.2 mm) footprint for a 3-pole MCCB — matches the cutout spacing on most panelboards and MCC buckets. Depth of 70 mm (2.76 in) leaves enough room for rear-connected bus bars or cable lugs without forcing an oversized enclosure.","metaTitle":"Siemens 3VA1150-5MH32-0AA0 SENTRON MCCB, 50 A, 3-Pole, 187 k","metaDescription":"Siemens 3VA1150-5MH32-0AA0 SENTRON molded case circuit breaker, 50 A rated, 3-pole, TM120M release, 187 kA interrupting at 240 V. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"76.2 mm","Height":"130 mm","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"75.6 kA","at 500 V":"7.5 kA","at 690 V":"7.5 kA","at 40 °C":"50 A","at 45 °C":"50 A","at 50 °C":"50 A","at 55 °C":"49 A","at 60 °C":"48 A","at 65 °C":"46 A","at 70 °C":"45 A","Depth [In]":"2.76 in","Width [In]":"3 in","Height [In]":"5.12 in","Trip Indicator":"No","Number Of Poles":"3","Product version":"Starter protection","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Communication Function":"No","Phase Failure Detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"14.6 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Courant permanent assigné Iu":"50 A","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"TM120M","Design Of Short-Circuit Protection":"For switching power values in DC networks, see the 3VA molded case circuit breaker device manual; link to be found under Service & Support in the last chapter","protection class IP / on the front":"IP40","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"160 A","Product Extension / Optional / Motor Drive":"Yes","Neutral conductors / upgradeable/retrofittable":"No","Protection Function Of The Overcurrent Release":"I","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"M","Mechanical Service Life (Switching Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"17 x 6,5 mm","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 1 mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d87dd4182a6923f19675df2065d63bd9.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=68538&mlfb=3VA1150-5MH32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1150-5MH32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1150-5MH32-0AA0 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent industrial distribution channels. Submit an RFQ to receive current availability and pricing — no stock count or price figure is published here."},{"question":"Will 3VA1150-5MH32-0AA0 drop into a panel that was specified around 5SQ2370-2YA05 without rewiring?","answer":"No — the 5SQ2370-2YA05 and 5SQ2370-2YA04 are different frame sizes with different mounting footprints and lug arrangements. The 3VA1150-5MH32-0AA0 is a physically different breaker; it will not drop in without panel modifications or rewiring."},{"question":"What compliance documentation does this brand provide for 3VA1150-5MH32-0AA0?","answer":"The evidence does not list specific compliance certifications (RoHS, REACH, UL, IEC) for this order code. The SENTRON series generally carries UL 489 and IEC 60947-2 listings, but confirm the exact documentation with the supplier at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1150-5MH32-0AA0","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/3VA1150-5MH32-0AA0 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}}