{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1180-3EF36-0BC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1180-3EF36-0BC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1180-3EF36-0BC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1180-3EF36-0BC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1180-3EF36-0BC0, molded case circuit breaker, 3-pole, 80 A rated current at 40-50 °C, breaking capacity 75.6 kA at 240 V AC, with undervoltage release and 2 auxiliary switches HQ.","salesMarkdown":"The Siemens SENTRON 3VA1180-3EF36-0BC0 is a 3-pole molded case circuit breaker rated for 80 A continuous at 40-50 °C ambient — no derating needed in a typical 40 °C panel. Above 55 °C it steps down to 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, and 74 A at 70 °C, so if your enclosure runs hot, that thermal curve is the one to size against. Breaking capacity is 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V. That 75.6 kA at 240 V gives headroom for high-fault service-entrance panels; the 11.9 kA at 690 V is what you'd expect for a 690 V motor branch circuit with moderate fault current. This is a line-protection design (not motor-protection or feeder-protection), so it's sized for cable and busbar protection in distribution panels. Dimensions are 130 mm height, 76.2 mm width, 70 mm depth — a compact 3-pole MCCB footprint that fits standard Siemens SENTRON mounting plates and busbar systems. The 70 mm depth (2.76 in) keeps it clear of shallow enclosure back panels; the 76.2 mm width (3 in) is the typical 3-pole MCCB slot in a SENTRON distribution board. Maximum power loss is 21.7 W, so in a multi-breaker panel you need to account for cumulative heat. The supplied basic switch order code is 3VA11803EF360AA0, which is the internal switching mechanism. For BOM traceability, the full order code 3VA1180-3EF36-0BC0 is what you spec; the auxiliary switch design is 2 auxiliary switches HQ, and the undervoltage release is integrated. For a 75 A continuous load at 40 °C ambient, this breaker holds; for a 75 A load at 65 °C, the 75 A rating at that temperature means it's right at the edge, so you'd want a larger frame or better ventilation.","metaTitle":"Siemens 3VA1180-3EF36-0BC0 SENTRON MCCB, 80A 3-Pole, 75.6kA@","metaDescription":"Siemens SENTRON 3VA1180-3EF36-0BC0 molded case circuit breaker, 80A rated at 40-50°C, 3-pole, 75.6 kA breaking at 240 V. Active production. Quoted to order against RFQ.","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":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 kA","at 500 V":"11.9 kA","at 690 V":"11.9 kA","at 40 °C":"80 A","at 45 °C":"80 A","at 50 °C":"80 A","at 55 °C":"78 A","at 60 °C":"77 A","at 65 °C":"75 A","at 70 °C":"74 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":"21.7 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA11803EF360AA0","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":"N","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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=68715&mlfb=3VA1180-3EF36-0BC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1180-3EF36-0BC0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA1180-3EF36-0BC0 at different voltages?","answer":"Breaking capacity is 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V. These are the maximum fault currents the breaker can safely interrupt at each voltage level."},{"question":"Does 3VA1180-3EF36-0BC0 include an undervoltage release?","answer":"Yes, it includes an undervoltage release (UVR) as standard, plus two auxiliary switches HQ. The UVR causes the breaker to trip when control voltage drops below the dropout threshold, which is typical for emergency-stop and safety isolation circuits."},{"question":"Where can I buy 3VA1180-3EF36-0BC0 and how is it quoted?","answer":"This part is sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time — no stock count or price is published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1180-3EF36-0BC0","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/3VA1180-3EF36-0BC0 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}}