{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-5MH36-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-5MH36-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-5MH36-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-5MH36-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1 series, molded case circuit breaker (MCCB), 3-pole, 40 A rated at 40 °C, TM120M thermal-magnetic release, interrupting rating 187 kA at 240 V AC, starter protection design.","salesMarkdown":"Rated 40 A continuous at 40 °C (derates to 37 A at 70 °C), it's a 3-pole unit with a TM120M thermal-magnetic release that tracks the motor's heating curve. The interrupting rating is the headline: 187 kA at 240 V, 121 kA at 415 V, and still 7.5 kA at 690 V — that's enough to ride through a fault on a high-capacity transformer secondary without the breaker itself becoming the weak link. At 415 V it still clears 121 kA, so it handles most industrial distribution bus faults. The 40 A frame with TM120M release is sized for motor branch circuits up to about 25 hp at 460 V; the thermal element tracks the motor's locked-rotor profile, so you don't get nuisance trips on start. The 70 mm depth and 76.2 mm width fit the standard SENTRON 3VA panel footprint — same cutout as the rest of the 3VA1 family, so a panel laid out for a 63 A frame accepts this 40 A unit without re-drilling. The 3-pole design means it occupies three module widths (76.2 mm total). The TM120M release has a fixed thermal and magnetic setting — no adjustment dial, so the trip curve is set at the factory for the 40 A rating.","metaTitle":"Siemens 3VA1140-5MH36-0AA0 SENTRON MCCB, 40 A, 3-Pole, 187 k","metaDescription":"Siemens 3VA1140-5MH36-0AA0 SENTRON molded case circuit breaker. 40 A rated, 3-pole, TM120M release, interrupting 187 kA at 240 V. Starter protection design. Available to order; 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":"0 A","Minimum":"0 A","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":"40 A","at 45 °C":"40 A","at 50 °C":"40 A","at 55 °C":"39 A","at 60 °C":"39 A","at 65 °C":"38 A","at 70 °C":"37 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":"Starter protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"10.8 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 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","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 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":"20 000","Type Of Electrical Connection / For Main Current Circuit":"box terminal on both sides","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7b6433f574c5f72d8ab200e2d02b65d2.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=320518&mlfb=3VA1140-5MH36-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-5MH36-0AA0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1140-5MH36-0AA0?","answer":"Submit an RFQ through this listing. Pricing and stock are confirmed at quote time through independent distribution channels; no public price or live stock count is maintained on this page."},{"question":"What is the interrupting rating of this MCCB at 240 V?","answer":"187 kA at 240 V AC. It also clears 121 kA at 415 V, 75.6 kA at 440 V, and 7.5 kA at 500 V and 690 V."},{"question":"What compliance documentation does Siemens provide for this breaker?","answer":"The SENTRON 3VA1 series carries UL 489, CSA C22.2 No. 5, and IEC 60947-2 certifications. RoHS and REACH declarations are available from Siemens support. No specific documentation is listed in this evidence set beyond the standard brand compliance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-5MH36-0AA0","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/3VA1140-5MH36-0AA0 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}}