{"product_id":"delta-vfd004el21a-0-5hp-230v-variable-frequency-drive","title":"Delta VFD004EL21A 0.5HP 230V Variable Frequency Drive","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong style=\"color: #0056b3;\"\u003eVFD004EL21A\u003c\/strong\u003e is a compact, high-efficiency micro-type AC drive belonging to Delta’s premier VFD-EL Series. Engineered for low-horsepower applications, this 0.5 HP (0.375 kW) variable frequency drive excels in small-scale automation tasks including conveyor belts, fans, pumps, and simple processing machinery. It accepts a standard 1-phase 200 to 240 V AC input and delivers a regulated 2.5 A output. Featuring a space-saving Frame A design, a highly lightweight construction weighing only 1.2 kg (2.65 lbs), and a built-in digital keypad, it provides precise velocity adjustments without requiring extensive panel modifications.\u003c\/p\u003e\n\n\u003ch2\u003eCore Technical Advantages\u003c\/h2\u003e\n\u003ch3\u003eUltra-Compact Micro Design\u003c\/h3\u003e\n\u003cp\u003eThe specialized Frame A architecture allows side-by-side installation on standard DIN rails. This structural design significantly reduces overall control cabinet space requirements while keeping installation configurations neat and dense.\u003c\/p\u003e\n\n\u003ch3\u003eFlexible Braking Architecture\u003c\/h3\u003e\n\u003cp\u003eThe drive incorporates an internal dynamic braking transistor alongside standard DC Injection braking capabilities. This allows the system to dissipate regenerative energy quickly, facilitating sharp deceleration curves and precise stopping accuracy for high-inertia motor loads.\u003c\/p\u003e\n\n\u003ch3\u003eHigh-Frequency Output Capability\u003c\/h3\u003e\n\u003cp\u003eSupporting a maximum operational frequency of up to 600 Hz, this scalar (V\/Hz) controlled inverter efficiently handles high-speed spindle operations and specialized industrial woodworking or textile applications.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 15px 0;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color: #f2f2f2; border-bottom: 2px solid #ddd;\"\u003e\n      \u003cth style=\"padding: 10px; text-align: left; border: 1px solid #ddd;\"\u003eParameter\u003c\/th\u003e\n      \u003cth style=\"padding: 10px; text-align: left; border: 1px solid #ddd;\"\u003eSpecification Details\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eDelta Products (VFD-EL Series)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eVFD004EL21A\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMotor Power Rating\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.5 HP \/ 0.375 kW\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eRated Current (CT)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e2.5 Amps\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eNominal Input Voltage\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e208 V \/ 240 Volts AC (Range: 200–240 V)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eInput Phase\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e1-Phase\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e1.2 kg (2.65 lbs)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eEnclosure Protection\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eIP20\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions (H × W × D)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e6.86 × 2.83 × 5.36 Inches\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eInstallation and Maintenance\u003c\/h2\u003e\n\u003ch3\u003eEnclosure and Ambient Environment\u003c\/h3\u003e\n\u003cp\u003eThe drive features an IP20 protection rating and must be mounted within a clean, dry, well-ventilated enclosure panel free from airborne contaminants, conductive dust, and moisture. Maintain proper physical clearances above and below the Frame A housing to allow the built-in cooling airflow to circulate freely.\u003c\/p\u003e\n\n\u003ch3\u003ePower and Field Wiring\u003c\/h3\u003e\n\u003cp\u003eConnect the single-phase AC incoming power lines strictly to the L1 and L2 input terminals. Ensure the output terminals (U, V, W) connect directly to a compatible 3-phase induction motor. Never apply incoming utility power to the U, V, W output terminals, as doing so will permanently destroy the internal IGBT power module.\u003c\/p\u003e\n\n\u003ch3\u003eBraking Resistor Implementation\u003c\/h3\u003e\n\u003cp\u003eFor applications demanding rapid stopping cycles or handling heavy overhauling loads, connect an external braking resistor across the internal dynamic braking circuit terminals. This prevents the drive from tripping on overvoltage faults ($OV$) during sudden deceleration phases.\u003c\/p\u003e\n\n\u003ch2\u003eEngineering Advantages\u003c\/h2\u003e\n\u003ch3\u003eIntegrated User Interface\u003c\/h3\u003e\n\u003cp\u003eThe integrated human-machine operator control panel features a digital display and control knob. This design allows technicians to alter drive parameters, monitor output current, and check operational frequencies immediately without needing external software.\u003c\/p\u003e\n\n\u003ch3\u003eExcellent Cost-to-Performance Ratio\u003c\/h3\u003e\n\u003cp\u003eBy specializing in high-demand open-loop V\/Hz scalar control, this model provides essential speed adjustments, multi-step acceleration profiles, and electronic thermal overload protection without the added expense of complex vector cards.\u003c\/p\u003e\n\n\u003ch3\u003eRobust Protection Mechanisms\u003c\/h3\u003e\n\u003cp\u003eBuilt-in firmware defenses monitor continuous current, overvoltage, undervoltage, and ground faults in real-time, executing swift shutdown sequences to preserve both the inverter circuitry and the connected motor hardware.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical FAQs\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: Can this drive accept a 3-phase input supply if a 1-phase supply is unavailable?\u003c\/strong\u003e\u003cbr\u003e\nA1: The hardware is rated and optimized for 1-phase 200–240 V AC input line connections. Running on a 3-phase supply can cause phase imbalance detection faults or uneven thermal stress across the input rectifier diodes. It is best practice to stick to 1-phase input sourcing.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ2: Does this model support closed-loop encoder feedback or sensorless vector control?\u003c\/strong\u003e\u003cbr\u003e\nA2: No. The VFD-EL series operates exclusively as an open-loop V\/Hz (Scalar) control drive. If your specific application requires closed-loop positioning or high torque at zero speed, you should evaluate the Delta VFD-E or VFD-C series instead.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ3: What causes an overvoltage error trip during motor deceleration, and how can it be fixed?\u003c\/strong\u003e\u003cbr\u003e\nA3: When a motor decelerates too quickly, it acts as a generator and sends energy back to the drive, raising the internal DC bus voltage. To fix this, increase the deceleration time parameter ($DEC$) or wire an external braking resistor to utilize the included dynamic braking transistor.\u003c\/p\u003e","brand":"Delta","offers":[{"title":"Default Title","offer_id":51887687237764,"sku":"VFD004EL21A","price":169.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/7454\/7844\/files\/VFD004EL21A.jpg?v=1779719897","url":"https:\/\/www.etowonauto.com\/tk\/products\/delta-vfd004el21a-0-5hp-230v-variable-frequency-drive","provider":"Etowon Auto","version":"1.0","type":"link"}