{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1110-4EF32-0KH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1110-4EF32-0KH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1110-4EF32-0KH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1110-4EF32-0KH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1110-4EF32-0KH0, molded case circuit breaker, 3-pole, 100 A rated continuous current Iu, TM240 overcurrent release, line protection version, 121 kA at 240 V.","salesMarkdown":"## Siemens 3VA1110-4EF32-0KH0 — SENTRON MCCB, 100 A, 3-Pole, Line Protection This line protection variant is designed for feeder and distribution duty in commercial and industrial panels, not for motor protection — the TM240 release curve is sized for cable and busbar protection, not for starting inrush. Breaking capacity is the headline spec here: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V. At 415 V, that 75.6 kA figure comfortably exceeds typical utility fault levels for a 400 V distribution board — you have headroom for selective coordination downstream without cascading upstream. At 690 V the capacity drops to 11.9 kA, which still covers most industrial motor-control-centre fault levels, but verify against your transformer impedance and cable run. Thermal derating is published per the datasheet: the breaker holds 100 A from 40 °C through 50 °C (–), then steps down to 96 A at 55 °C, 94 A at 60 °C, 92 A at 65 °C, and 90 A at 70 °C. ## Fit and Mounting — Panel Integration The 76.2 mm width is a standard 3-pole MCCB footprint — it occupies three 25.4 mm module positions on a DIN rail or direct-panel mount. Verify the depth clearance in your enclosure: 70 mm plus wiring space behind the breaker and clearance for the auxiliary contact wiring. The shunt trip release (STL) is integrated per the design, with the auxiliary trip module order code 3VA9688-0BL33. If your BOM calls for undervoltage release or phase failure detection, note that this variant carries neither. No communication function is fitted — this is a standalone electromechanical breaker, not a smart metering unit. This is the mechanical endurance for the switching mechanism under no-load conditions; electrical endurance under rated load will be lower and depends on the switching frequency and fault-clearing history. For high-cycle applications (frequent switching of capacitor banks or motor circuits), consider the electrical endurance curve in the device manual. ## Coordination and Selectivity Notes Consult the Siemens selectivity tables for the 3VA series to confirm coordination with your specific downstream devices. The trip indicator provides local visual status of the breaker state — open, closed, or tripped. The voltage trigger function enables remote shunt-trip operation via the integrated STL release, which is wired to an external control voltage (typically 110–415 V AC/DC, per the shunt trip rating — verify the specific STL coil voltage against your control circuit).","metaTitle":"Siemens 3VA1110-4EF32-0KH0 SENTRON MCCB, 100 A, 3-Pole, 121","metaDescription":"Siemens SENTRON 3VA1110-4EF32-0KH0 molded case circuit breaker, 100 A rated, 3-pole, line protection. Breaking capacity 121 kA at 240 V. Active production. Quoted 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":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 kA","at 690 V":"11.9 kA","at 40 °C":"100 A","at 45 °C":"100 A","at 50 °C":"100 A","at 55 °C":"96 A","at 60 °C":"94 A","at 65 °C":"92 A","at 70 °C":"90 A","Trip indicator":"Yes","Number of poles":"3","Product version":"Line protection","Voltage trigger":"Yes","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 + 1 trip alarm switch HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"100 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL33","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.":"100 A","Adjustable response value current / li max.":"1 000 A","Adjustable response value current / li min.":"500 A","Adjustable response value current / lr min.":"70 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":"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=252200&mlfb=3VA1110-4EF32-0KH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1110-4EF32-0KH0/alternatives.json"},"ai":{"faq":[{"question":"Will 3VA1110-4EF32-0KH0 drop into a panel that was specified around 3VA1110-5EE32-0JA0 without rewiring?","answer":"The 3VA1110-4EF32-0KH0 shares the same SENTRON 3VA platform and the same 3-pole, 100 A frame size as the 3VA1110-5EE32-0JA0. Both use the 76.2 mm width footprint. However, the auxiliary contact configuration differs — this unit carries 2 auxiliary switches plus 1 trip alarm switch (HQ), while the 5EE32 variant may have a different contact arrangement. Verify the auxiliary wiring diagram before assuming drop-in replacement; the power connections should be mechanically compatible."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1110-4EF32-0KH0","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/3VA1110-4EF32-0KH0 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}}