{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1180-4EF36-0CH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1180-4EF36-0CH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1180-4EF36-0CH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1180-4EF36-0CH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1180-4EF36-0CH0, molded case circuit breaker, 3-pole, 80 A (at 40 °C), 121 kA breaking capacity at 240 VAC, line protection design, undervoltage release, 2 aux + 1 trip alarm switch.","salesMarkdown":"At 415 VAC the interrupting rating is 75.6 kA, and at 690 VAC it holds at 11.9 kA, so the breaker's SCCR (short-circuit current rating) is voltage-dependent; the buyer must match the available fault current at the point of installation. The 80 A rating holds flat from 40 °C through 50 °C (–), then derates to 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, and 74 A at 70 °C (–). For a panel running warm — say 55 °C ambient — the breaker still carries 78 A continuous, so a full 80 A load would need a one-size-up frame. That 76.2 mm width is three standard 25.4 mm module spaces on a DIN rail — a 3-pole MCCB occupying exactly three 1-inch slots. ## What the auxiliary switch complement means for the controls engineer The breaker ships with two auxiliary switches and one trip alarm switch. The two aux contacts provide status feedback (open/closed) to a PLC or indicator lamp; the trip alarm switch signals a fault trip separately from a manual open. This is the HQ variant — high-quantity auxiliary switch block — which gives more feedback points than the standard single-aux configuration.","metaTitle":"Siemens 3VA1180-4EF36-0CH0 SENTRON MCCB, 80 A, 3-Pole, 121 k","metaDescription":"Siemens SENTRON 3VA1180-4EF36-0CH0 molded case circuit breaker, 80 A rated, 3-pole, 121 kA breaking capacity at 240 VAC. Active production. Sourced 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":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 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":"Yes","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":"3VA11804EF360AA0","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch 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":"3VA9608-0BB24","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":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching Capacity Class Of The Circuit Breaker":"S","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=354912&mlfb=3VA1180-4EF36-0CH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1180-4EF36-0CH0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for 3VA1180-4EF36-0CH0?","answer":"It is a 3-pole MCCB rated 80 A at 40 °C with a breaking capacity of 121 kA at 240 VAC, 75.6 kA at 415 VAC, and 11.9 kA at 690 VAC. The rated insulation voltage is 800 V. Dimensions are 76.2 mm wide, 130 mm tall, and 70 mm deep."},{"question":"Where can I buy 3VA1180-4EF36-0CH0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time. Submit an RFQ for a firm price and lead time."},{"question":"What is the width of 3VA1180-4EF36-0CH0?","answer":"The width is 76.2 mm, which is exactly three standard 25.4 mm DIN-rail module spaces. The depth is 70 mm and the height is 130 mm."},{"question":"Does 3VA1180-4EF36-0CH0 include auxiliary switches?","answer":"Yes, it ships with two auxiliary switches and one trip alarm switch, plus an undervoltage release (UVR) as the auxiliary release. These are factory-integrated."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1180-4EF36-0CH0","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/3VA1180-4EF36-0CH0 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}}