{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1110-5EF32-0BC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1110-5EF32-0BC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1110-5EF32-0BC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1110-5EF32-0BC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1110-5EF32-0BC0, molded case circuit breaker, 3-pole, 100 A at 40 °C, breaking capacity 187 kA at 240 V AC, line protection, with undervoltage release and 2 HQ auxiliary switches.","salesMarkdown":"The Siemens SENTRON 3VA1110-5EF32-0BC0 is a 3-pole molded case circuit breaker rated 100 A continuous at 40 °C ambient, with a maximum breaking capacity of 187 kA at 240 V AC. The 187 kA figure at 240 V tells you this breaker can interrupt very high fault currents typical of large transformer secondaries or industrial service entrances; at 415 V it still handles 121 kA, and at 690 V it holds 17 kA, so it's suited to 480/277 V and 600 V panels as well. Dimensions: 130 mm height, 76.2 mm width (3 inches), 70 mm depth. Fits standard DIN-rail or panel-mount enclosures; the 3-inch width matches the common 3-pole MCCB footprint for easy retrofits. If you are filling a panel that was specified around the 3VA1110-5EF32-0AM0 (same frame, different aux configuration), this unit drops in without rewiring — same 3-pole footprint, same 100 A rating, same breaking class. The difference is the UVR and aux switch complement. ## Thermal derating and real-world capacity At 55 °C it carries 98 A, at 60 °C it carries 96 A, at 65 °C it carries 94 A, and at 70 °C it carries 91 A. That means in a sealed enclosure or near heat sources, you still get 91 A at the maximum operating temperature of 70 °C. Maximum power loss is 27.5 W, which is moderate for a 100 A frame — helps when sizing enclosure cooling.","metaTitle":"Siemens 3VA1110-5EF32-0BC0 SENTRON MCCB, 100 A, 3-Pole, 187","metaDescription":"Siemens SENTRON 3VA1110-5EF32-0BC0 molded case circuit breaker, 100 A rated at 40 °C, 3-pole, 187 kA breaking at 240 V. Line protection with undervoltage release and 2 aux switches","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"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":"17 kA","at 690 V":"17 kA","at 40 °C":"100 A","at 45 °C":"100 A","at 50 °C":"100 A","at 55 °C":"98 A","at 60 °C":"96 A","at 65 °C":"94 A","at 70 °C":"91 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":"Yes","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"27.5 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA11105EF320AA0","Design Of The Auxiliary Switch":"2 auxiliary switches HQ","Design Of The Auxiliary Release":"undervoltage release (UVR)","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"TM240","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","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB11","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":"LI","number of CO contacts / for auxiliary contacts":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching Capacity Class Of The Circuit Breaker":"M","Mechanical Service Life (Operating 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"}},"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=306685&mlfb=3VA1110-5EF32-0BC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1110-5EF32-0BC0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this MCCB at different voltages?","answer":"At 240 V AC it breaks 187 kA, at 415 V it breaks 121 kA, at 440 V it breaks 75.6 kA, and at 500 V and 690 V it breaks 17 kA. The 187 kA rating at 240 V makes it suitable for high-fault service entrances."},{"question":"Will the 3VA1110-5EF32-0BC0 drop into a panel built for the 3VA1110-5EF32-0AM0?","answer":"Yes — same 3-pole frame, same 100 A rating at 40 °C, same breaking capacity. The difference is the aux switch and release complement: this unit includes an undervoltage release and two HQ auxiliary switches, whereas the -0AM0 variant has a different aux configuration. Footprint and wiring terminals are identical."},{"question":"Where can I buy the 3VA1110-5EF32-0BC0 and what is the lead time?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm lead time and price."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1110-5EF32-0BC0","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/3VA1110-5EF32-0BC0 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}}