{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1180-3EF32-0BH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1180-3EF32-0BH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1180-3EF32-0BH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1180-3EF32-0BH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1180-3EF32-0BH0, molded case circuit breaker, 3-pole, 80 A, TM240 thermal-magnetic release, line protection, 70 mm depth.","salesMarkdown":"## What this MCCB is and what it does The Siemens 3VA1180-3EF32-0BH0 is a SENTRON molded case circuit breaker (MCCB) rated for line protection — the job it does is protecting cables and busbars from overloads and short circuits, not motor starting or generator duty. It carries a rated continuous current Iu of 80 A across three poles, with a TM240 thermal-magnetic trip unit that handles the overload curve and instantaneous magnetic pickup. The interrupting ratings are 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 10.5 kA at 690 V — these numbers tell you the maximum fault current it can safely clear at each voltage level, which is the first check for panel SCCR coordination. The thermal derating curve is flat from 40 °C to 50 °C at a full 80 A, then drops to 76.8 A at 55 °C, 75.2 A at 60 °C, 73.6 A at 65 °C, and 72 A at 70 °C. If your panel ambient runs above 50 °C, you need to account for that reduction in continuous current — the breaker itself will handle the heat, but the load side must be sized for the lower ampacity. ## Built-in auxiliary and undervoltage release This variant ships with an integrated undervoltage release (UVR) and a factory-fitted auxiliary contact block carrying 2 auxiliary switches plus 1 trip alarm switch. The UVR is the coil that drops the breaker when control voltage is lost — standard for safety circuits where a loss of control power must open the main feeder. The auxiliary contacts give you status feedback to a PLC or annunciator panel without adding a separate module. The integrated auxiliary trip order code is 3VA9608-0BB11 — that is the Siemens spare/replacement part number for the auxiliary block if it ever needs swapping. No communication function, no phase failure detection, no ground fault monitoring on this build; it is a straight line-protection MCCB with UVR and aux contacts. ## Physical fit and panel integration The dimensions are 70 mm depth, 76.2 mm width, and 130 mm height. The width is a standard 3-pole MCCB footprint — it fits a 76.2 mm cutout or DIN-rail adapter. Front protection is IP40, meaning it is protected against tools and small wires entering from the front but not against dust ingress; it is intended for installation inside a closed panel, not in a washdown or outdoor location. The reference code per DIN EN 81346-2 is Q — that is the standard designation for switching devices in industrial systems. Storage temperature range is -40 °C to 80 °C; operating temperature range is -25 °C to 70 °C. The mechanical endurance is rated at 15 000 operations — that is the number of open-close cycles the mechanism is designed for before wear becomes a factor.","metaTitle":"Siemens 3VA1180-3EF32-0BH0 SENTRON MCCB, 80 A, 3-Pole, TM240","metaDescription":"Siemens 3VA1180-3EF32-0BH0 SENTRON molded case circuit breaker, 80 A rated continuous current, 3 poles, TM240 release, 75.6 kA at 240 V. Current lifecycle. Sourced to order.","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","at 240 V":"75.6 kA","at 415 V":"52.5 kA","at 440 V":"32 kA","at 690 V":"10.5 kA","at 40 °C":"80 A","at 45 °C":"80 A","at 50 °C":"80 A","at 55 °C":"76.8 A","at 60 °C":"75.2 A","at 65 °C":"73.6 A","at 70 °C":"72 A","Trip indicator":"Yes","Number of poles":"3","Product version":"Line protection","Voltage trigger":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"Yes","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"2 auxiliary switches + 1 trip alarm switch HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"80 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"Undervoltage release (UVR)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB11","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","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"1","Adjustable response value time / tr min.":"1","Max. rated operational voltage Ue with DC":"500 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"80 A","Adjustable response value current / li max.":"800 A","Adjustable response value current / li min.":"400 A","Adjustable response value current / lr min.":"56 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"3","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching capacity class of the circuit breaker":"N","Max. rated operational current of the frame size":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"lug terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"17 x 6.5","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 0"}},"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=374297&mlfb=3VA1180-3EF32-0BH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1180-3EF32-0BH0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1180-3EF32-0BH0?","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 real-time quote."},{"question":"What is the interrupting rating of 3VA1180-3EF32-0BH0 at 415 V?","answer":"The interrupting rating at 415 V is 52.5 kA. At 240 V it is 75.6 kA, at 440 V it is 32 kA, and at 690 V it is 10.5 kA."},{"question":"Does 3VA1180-3EF32-0BH0 include an undervoltage release?","answer":"Yes, it ships with an integrated undervoltage release (UVR) and a factory-fitted auxiliary contact block with 2 auxiliary switches plus 1 trip alarm switch."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1180-3EF32-0BH0","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/3VA1180-3EF32-0BH0 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}}