{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VM1132-5MH32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VM1132-5MH32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VM1132-5MH32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VM1132-5MH32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VM1132-5MH32-0AA0, 3-pole molded case circuit breaker, TM120M thermal-magnetic release, 32 A continuous (rated to 70 °C), 510 A frame, breaking capacity 187 kA at 240 VAC.","salesMarkdown":"It carries a 32 A continuous rating that holds flat from 40 °C through 50 °C, then derates only 1 A per 5 °C step to 30 A at 70 °C — so it keeps its full nameplate current in a warm enclosure without oversizing the frame. ## Breaking capacity — what the voltage columns mean This breaker's interrupting rating changes sharply with system voltage: 187 kA at 240 V, 121 kA at 415 V, 76 kA at 440 V, and 17 kA at 500 V. At 415 V the 121 kA covers heavy industrial feeders with high fault current. The 510 A maximum frame rating means the breaker body itself is rated for that ultimate interrupting current; the 32 A trip unit limits the continuous load. This part carries a current production lifecycle status — it is still an active catalog number within the SENTRON 3VM line, not a phase-out or last-time-buy item. That means it can be specified into a BOM without worrying about a short production window. No official successor exists because none is needed — this is the current design. The 3VM1132-5MH32-0AA0 measures 130 mm high, 76.2 mm wide, and 70 mm deep — a compact 3-pole footprint for standard panel-mount cutouts. ## What the TM120M release means in practice The TM120M designation tells you this is a thermal-magnetic release with a fixed magnetic trip threshold at 120 A (approximately 3.75x the 32 A continuous rating). That magnetic pickup is high enough to avoid nuisance tripping on motor inrush or transformer energization, but low enough to clear a bolted fault fast.","metaTitle":"Siemens SENTRON 3VM1132-5MH32-0AA0 MCCB, 32 A, 510 A max, 18","metaDescription":"Siemens SENTRON 3VM1132-5MH32-0AA0 molded case circuit breaker, 3-pole, 32 A continuous, TM120M release, 187 kA at 240 VAC. Current production. Sourced to order against RFQ.","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","Maximum":"510 A","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"76 kA","at 500 V":"17 kA","at 40 °C":"32 A","at 45 °C":"32 A","at 50 °C":"32 A","at 55 °C":"31 A","at 60 °C":"31 A","at 65 °C":"30 A","at 70 °C":"30 A","Depth [In]":"2.76 in","Width [In]":"3 in","Height [In]":"5.12 in","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Startetptotection","Communication Function":"No","Phase Failure Detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"3 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"TM120M","Design Of Short-Circuit Protection":"For switching capacity values in DC power systems, see the 3VA Molded Case Circuit Breaker Manual; link available under Service & Support in the last chapter","protection class IP / on the front":"IP40","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"500 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","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 (Operating Cycles) / Typical":"15 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front connection"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c44489171b065db9ac94407a2317a7df.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=578320&mlfb=3VM1132-5MH32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VM1132-5MH32-0AA0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VM1132-5MH32-0AA0","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/3VM1132-5MH32-0AA0 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}}