{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1150-5GF42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1150-5GF42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1150-5GF42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1150-5GF42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1150-5GF42-0AA0, molded case circuit breaker, 4-pole, 50 A rated continuous current (Iu), TM240 thermal-magnetic release, line protection, 187 kA breaking capacity at 240 V AC, 70 mm depth.","salesMarkdown":"Its 50 A rated continuous current (Iu) holds flat from 40 °C to 50 °C, then derates to 45 A at 70 °C — that thermal curve matters if the breaker sits in a warm enclosure or next to other heat sources. The TM240 release is a thermal-magnetic trip unit tuned for 240 A frame, so the 50 A rating is set by the installed trip coil, not the frame size; you can swap the release later if the load grows, but the breaker itself is a fixed 50 A line-protection version. Breaking capacity is the headline number here: 187 kA at 240 V AC, 121 kA at 415 V, 76 kA at 440 V, and 17 kA at both 500 V and 690 V. At 690 V the 17 kA figure is modest; if your system runs 690 V with fault currents above that, you need a higher-rated frame. The 800 V rated insulation voltage (Ui) means the internal clearances are designed for 800 V system voltage, so it's safe on 480/277 V and 600 V nominal systems. Mechanical endurance is 20,000 operations. IP40 front protection suits dry indoor panels. Dimensions: 101.6 mm wide, 130 mm high, 70 mm deep. Maximum power loss is 14.6 W. The N-conductor protection is rated at 100% — meaning the neutral pole is fully rated for the same current as the phase poles, not derated. That's important for 4-wire systems where the neutral carries harmonic currents (e.g., VFD-fed loads with triplen harmonics).","metaTitle":"Siemens 3VA1150-5GF42-0AA0 SENTRON MCCB, 4-pole, 50 A, 187 k","metaDescription":"Siemens SENTRON 3VA1150-5GF42-0AA0 molded case circuit breaker, 4-pole, 50 A rated, 187 kA breaking at 240 V. TM240 release, line protection. Current lifecycle. Sourced to order ag","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"101.6 mm","Height":"130 mm","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"76 kA","at 500 V":"17 kA","at 690 V":"17 kA","at 40 °C":"50 A","at 45 °C":"50 A","at 50 °C":"50 A","at 55 °C":"49 A","at 60 °C":"48 A","at 65 °C":"46 A","at 70 °C":"45 A","Depth [in]":"2.8 in","Width [in]":"4 in","Height [in]":"5.1 in","Number of poles":"4","Product version":"Line protection","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"20 000","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"14.6 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-40 °C","Other Measurement Function":"No","Rated continuous current Iu":"50 A","Rated insulation voltage Ui":"800 V","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","Design of the N-conductor protection":"100%","Reference code / acc. to DIN EN 81346-2":"Q","Max. rated operational voltage Ue with DC":"600 V","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":"0","Protective function of the overcurrent release":"LI","Switching capacity class of the circuit breaker":"M","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"}},"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=415445&mlfb=3VA1150-5GF42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1150-5GF42-0AA0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1150-5GF42-0AA0","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/3VA1150-5GF42-0AA0 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}}