{"product_id":"siemens-3vl4740-3dc36-0aa0-vl400l-molded-case-circuit-breaker-3-pole-400-a-in-icu-100-ka-415-v-tm-trip-unit","title":"Siemens 3VL4740-3DC36-0AA0 VL400L Molded Case Circuit Breaker, 3‑Pole, 400 A (In), Icu 100 kA @415 V — TM Trip Unit","description":"\u003cp\u003eSiemens 3VL4740-3DC36-0AA0 — VL400L Series Molded Case Circuit Breaker, 3‑Pole, 400 A (In), TM Trip Unit\u003c\/p\u003e\n\u003cp\u003eOverview\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturer: Siemens\u003c\/li\u003e\n\u003cli\u003eModel: 3VL4740-3DC36-0AA0 (VL400L family, size 3VL4)\u003c\/li\u003e\n\u003cli\u003eType: Molded Case Circuit Breaker (VL400L) — 3‑pole main circuit, line protection with TM electronic overcurrent release\u003c\/li\u003e\n\u003cli\u003eRated operational current (In): 400 A\u003c\/li\u003e\n\u003cli\u003eAdjustable rated current (Ir): 320…400 A (adjustable pick‑up initial value shown 320 A)\u003c\/li\u003e\n\u003cli\u003ePackaged\/Single unit: single circuit breaker\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eKey electrical characteristics\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum short‑circuit breaking capacity (Icu): 100 kA at 415 V AC (rated value)\u003c\/li\u003e\n\u003cli\u003eOperational short‑circuit current breaking capacity (Ics): 75 kA at 415 V AC\u003c\/li\u003e\n\u003cli\u003eOther Icu \/ Ics references from datasheet:\n\u003cul\u003e\n\u003cli\u003eIcu: 200 kA @240 V; 75 kA @440 V; 50 kA @500 V; 20 kA @600 V (NEMA); 15 kA @690 V\u003c\/li\u003e\n\u003cli\u003eIcs: 150 kA @240 V; 38 kA @500 V; 8 kA @690 V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eRated operational voltage Ue: up to 690 V AC (main circuit: 690 V AC max; DC up to 500 V max)\u003c\/li\u003e\n\u003cli\u003eInsulation voltage: 800 V\u003c\/li\u003e\n\u003cli\u003eSurge voltage resistance: 8 kV\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProtection \u0026amp; trip unit\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOvercurrent release design: TM (thermal\/magnetic electronic trip unit with adjustable thermal overload)\u003c\/li\u003e\n\u003cli\u003eOverload protection: adjustable thermal overload trip unit\u003c\/li\u003e\n\u003cli\u003eInstantaneous short‑circuit trip adjustable range: initial 2,000 A, full‑scale 4,000 A (per datasheet adjustable instantaneous setting)\u003c\/li\u003e\n\u003cli\u003eUsage category: A (for system protection)\u003c\/li\u003e\n\u003cli\u003ePerformance class: N\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMechanical \u0026amp; environmental\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNumber of poles: 3\u003c\/li\u003e\n\u003cli\u003eCircuit‑breaker size: 3VL4 (VL400L family)\u003c\/li\u003e\n\u003cli\u003eElectrical endurance (typical): 10,000 switching cycles\u003c\/li\u003e\n\u003cli\u003eMechanical service life (typical): 20,000 switching cycles\u003c\/li\u003e\n\u003cli\u003eDimensions (H×W×D): 279.5 mm × 139 mm × 163.5 mm\u003c\/li\u003e\n\u003cli\u003eMounting: fixed mounting\u003c\/li\u003e\n\u003cli\u003eProtection class: IP20\u003c\/li\u003e\n\u003cli\u003eAmbient operating temperature: 0 °C … 70 °C\u003c\/li\u003e\n\u003cli\u003eStorage temperature: -40 °C … 80 °C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eConnection details\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMain contact connection arrangement: front side\u003c\/li\u003e\n\u003cli\u003eConnectable conductor cross‑sections (main contacts): flexible busbar 25×10; solid 50…300 mm²; finely stranded w\/ end processing 50…240 mm²; stranded 50…300 mm²\u003c\/li\u003e\n\u003cli\u003eType of electrical connection (main): screw‑type terminals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProduct options \u0026amp; notes\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNo integrated auxiliary\/alarm switch or undervoltage release included in this model (per datasheet: auxiliary switch No; undervoltage release No).\u003c\/li\u003e\n\u003cli\u003eProduct extension \/ optional motor drive: Yes (motor drive available as accessory).\u003c\/li\u003e\n\u003cli\u003eCertificates \u0026amp; suitability: IEC certified, very high switching capacity (L) per datasheet.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOrdering \u0026amp; documentation\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDatasheet reference: Siemens 3VL4740-3DC36-0AA0 (catalog and support pages available on Siemens Industry Mall and support portals).\u003c\/li\u003e\n\u003cli\u003eVerify full ordering code and accessory requirements (auxiliary contacts, motor drive, mounting kit) when placing order.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSafety \u0026amp; installation\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFollow Siemens installation instructions, local codes, and coordinate upstream protective devices based on Icu\/Ics values.\u003c\/li\u003e\n\u003cli\u003eEnsure correct setting of TM trip unit for application (overload and instantaneous settings) and correct thermal derating at elevated ambient temperatures (datasheet lists reduced rated currents at \u0026gt;50 °C).\u003c\/li\u003e\n\u003cli\u003eDe‑energize and apply lockout\/tagout procedures during installation or maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":51729791811863,"sku":null,"price":750.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/9210\/1655\/files\/siemens-two-level-siemens-3vl4740-3dc36-0aa0-vl400l-molded-case-circuit-breaker-3-pole-400-a-in-icu-100-ka-415-v-tm-trip-unit-1212524322.png?v=1766323445","url":"https:\/\/www.apexonsupply.com\/products\/siemens-3vl4740-3dc36-0aa0-vl400l-molded-case-circuit-breaker-3-pole-400-a-in-icu-100-ka-415-v-tm-trip-unit","provider":"Apexon Solutions LLC","version":"1.0","type":"link"}