{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1150-4EF32-0AC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1150-4EF32-0AC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1150-4EF32-0AC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1150-4EF32-0AC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1150-4EF32-0AC0, molded case circuit breaker, 3-pole, 50 A rated continuous current (Iu), TM240 thermal-magnetic release, 121 kA interrupting at 240 V, 70 mm depth, 76.2 mm width, 130 mm height.","salesMarkdown":"Its 50 A rated continuous current (Iu) holds steady from 40 °C up to 50 °C without derating; above that it drops to 48 A at 55 °C and 45 A at 70 °C, so if your panel ambient runs hot, that's the number to spec against. The TM240 thermal-magnetic release handles the overload curve and short-circuit trip — fixed thermal element, magnetic pickup factory-set. The interrupting ratings climb with voltage: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V — that 121 kA figure at 240 V is the headline number for high-fault service-entrance applications. Three-pole, 76.2 mm wide (roughly 3 inches — standard MCCB footprint for a 3-pole frame in this class), 130 mm tall, 70 mm deep. The auxiliary contact version ships with 2 HQ (high-quality) auxiliary switches — those are the form-C contacts you'll wire into the PLC or status lamp circuit. No communication module, no phase-failure detection, no other measurement function onboard. If you need remote trip indication or current monitoring, you're adding an external module or a separate metering device. The latching endurance is rated at 15 000 operations — that's mechanical life, not electrical; under load the contact wear will reduce it, but for a distribution breaker that cycles rarely it's fine.","metaTitle":"Siemens 3VA1150-4EF32-0AC0 SENTRON MCCB, 50 A, 3-Pole, TM240","metaDescription":"Siemens 3VA1150-4EF32-0AC0 SENTRON molded case circuit breaker, 50 A rated continuous current, 3-pole, TM240 thermal-magnetic release, 121 kA at 240 V. Active production. Sourced t","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":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 kA","at 690 V":"11.9 kA","at 40 °C":"50 A","at 45 °C":"50 A","at 50 °C":"50 A","at 55 °C":"48 A","at 60 °C":"47 A","at 65 °C":"46 A","at 70 °C":"45 A","Trip indicator":"No","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":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"2 auxiliary switches HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"50 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"without auxiliaryrelease","Ground fault monitoring version":"Without","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.":"50 A","Adjustable response value current / li max.":"500 A","Adjustable response value current / li min.":"250 A","Adjustable response value current / lr min.":"35 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"2","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching capacity class of the circuit breaker":"S","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=367094&mlfb=3VA1150-4EF32-0AC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1150-4EF32-0AC0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1150-4EF32-0AC0?","answer":"Submit an RFQ through this listing. We source this part to order; availability and current pricing are confirmed at quote time."},{"question":"What are the key interrupting ratings for 3VA1150-4EF32-0AC0?","answer":"121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V — the 240 V figure is the highest and suits high-fault service-entrance applications."},{"question":"What is the rated continuous current and how does it derate with temperature?","answer":"50 A from 40 °C to 50 °C, then 48 A at 55 °C, 47 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C — no derating needed up to 50 °C ambient."},{"question":"What compliance documentation does this brand provide for 3VA1150-4EF32-0AC0?","answer":"As a SENTRON MCCB, it carries the standard Siemens declarations — CE marking for the European market, and UL/CSA listings per the 3VA family. Specific certificates (RoHS, REACH, UL file number) are available on request with the RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1150-4EF32-0AC0","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/3VA1150-4EF32-0AC0 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}}