{"product_id":"vfd022el21a-delta-electronics-11a-single-phase-micro-drive","title":"VFD022EL21A Delta Electronics 11A Single-Phase Micro Drive","description":"\u003ch2 style=\"color: #1a365d; font-size: 14pt; margin-top: 0; margin-bottom: 12px;\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp style=\"margin-bottom: 16px;\"\u003eThe Delta Electronics \u003cstrong style=\"color: #1a365d;\"\u003eVFD022EL21A\u003c\/strong\u003e is a commercial-grade, multi-functional micro AC inverter from the high-reliability VFD-EL series. Engineered to support standard induction motor assets up to 3 Horsepower (2.2 kW), this compact variable frequency drive features a convenient single-phase 230V input line configuration that outputs a balanced 3-phase current rated at 11 Amps. Optimized for tight panel footprints and streamlined installation, it incorporates a built-in digital operating keypad, side-by-side DIN-rail mounting capabilities, and an integrated dynamic braking chopper circuit. Relying on an advanced open-loop V\/Hz scalar control module, the VFD022EL21A provides exceptionally smooth speed regulation and energy savings for mechanical fans, water pumps, conveyor systems, and dedicated packaging machines.\u003c\/p\u003e\n\n\u003cp style=\"margin-bottom: 16px; padding: 0; font-size: 0; line-height: 0;\"\u003e \u003c\/p\u003e\n\n\u003ch2 style=\"color: #1a365d; font-size: 14pt; margin-bottom: 12px;\"\u003eCore Technical Advantages\u003c\/h2\u003e\n\n\u003ch3 style=\"color: #2c5282; font-size: 11pt; margin-top: 12px; margin-bottom: 6px;\"\u003eStable Volts-per-Hertz Scalar Control\u003c\/h3\u003e\n\u003cp style=\"margin-bottom: 12px;\"\u003eOperating on a standard open-loop V\/Hz tracking profile, the drive supplies reliable voltage-to-frequency proportional output curves. This makes it an exceptionally efficient option for variable and constant torque loads that do not require complex, encoder-based closed-loop response networks.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #2c5282; font-size: 11pt; margin-top: 12px; margin-bottom: 6px;\"\u003eInternal Dynamic Braking Chopper\u003c\/h3\u003e\n\u003cp style=\"margin-bottom: 12px;\"\u003eA factory-integrated dynamic braking transistor comes standard on the internal power card. When connected to a compatible external power dissipation resistor, the drive effectively prevents overvoltage faults caused by high-inertia regenerative loads during aggressive deceleration cycles.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #2c5282; font-size: 11pt; margin-top: 12px; margin-bottom: 16px;\"\u003eOnboard Digital User Interface\u003c\/h3\u003e\n\u003cp style=\"margin-bottom: 16px;\"\u003eThe drive features factory-integrated operator controls positioned directly on its front panel. This clear digital setup eliminates the need to source standalone keypads, allowing plant operators to quickly adjust frequency parameters, map digital I\/O lines, and review active fault logs.\u003c\/p\u003e\n\n\u003cp style=\"margin-bottom: 16px; padding: 0; font-size: 0; line-height: 0;\"\u003e \u003c\/p\u003e\n\n\u003ch2 style=\"color: #1a365d; font-size: 14pt; margin-bottom: 12px;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\n\u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 500px; margin-bottom: 16px;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color: #f7fafc; border-bottom: 2px solid #cbd5e0;\"\u003e\n      \u003cth style=\"padding: 8px; text-align: left; font-weight: bold; color: #2d3748; font-size: 10pt; border: 1px solid #e2e8f0;\"\u003eParameter\u003c\/th\u003e\n      \u003cth style=\"padding: 8px; text-align: left; font-weight: bold; color: #2d3748; font-size: 10pt; border: 1px solid #e2e8f0;\"\u003eSpecification Details\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background-color: #ffffff;\"\u003e\n      \u003ctd style=\"padding: 8px; font-weight: bold; border: 1px solid #e2e8f0; width: 35%;\"\u003eManufacturer\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003eDelta Electronics\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f8fafc;\"\u003e\n      \u003ctd style=\"padding: 8px; font-weight: bold; border: 1px solid #e2e8f0;\"\u003eModel Number\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003eVFD022EL21A\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color: #ffffff;\"\u003e\n      \u003ctd style=\"padding: 8px; font-weight: bold; border: 1px solid #e2e8f0;\"\u003ePower Specifications\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003e3 HP \/ 2.2 kW (Constant Torque capacity)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f8fafc;\"\u003e\n      \u003ctd style=\"padding: 8px; font-weight: bold; border: 1px solid #e2e8f0;\"\u003eMain Input Power\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003e1-Phase, 200V to 240V AC incoming spectrum\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color: #ffffff;\"\u003e\n      \u003ctd style=\"padding: 8px; font-weight: bold; border: 1px solid #e2e8f0;\"\u003eOutput Amperage\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003e11 Amps maximum continuous output current\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f8fafc;\"\u003e\n      \u003ctd style=\"padding: 8px; font-weight: bold; border: 1px solid #e2e8f0;\"\u003ePeak Output Frequency\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003e0.1 to 600 Hz customizable operation bounds\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color: #ffffff;\"\u003e\n      \u003ctd style=\"padding: 8px; font-weight: bold; border: 1px solid #e2e8f0;\"\u003eMechanical Classification\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003eFrame Size B | IP20 ingress protection rating\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f8fafc;\"\u003e\n      \u003ctd style=\"padding: 8px; font-weight: bold; border: 1px solid #e2e8f0;\"\u003eChassis Dimensions\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003e6.85 x 3.94 x 5.35 Inches (H x W x D)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color: #ffffff;\"\u003e\n      \u003ctd style=\"padding: 8px; font-weight: bold; border: 1px solid #e2e8f0;\"\u003eNet Weight\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003e1.4 kg (3.09 lbs) nominal physical weight\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp style=\"margin-bottom: 16px; padding: 0; font-size: 0; line-height: 0;\"\u003e \u003c\/p\u003e\n\n\u003ch2 style=\"color: #1a365d; font-size: 14pt; margin-bottom: 12px;\"\u003eInstallation and Maintenance\u003c\/h2\u003e\n\n\u003ch3 style=\"color: #2c5282; font-size: 11pt; margin-top: 12px; margin-bottom: 6px;\"\u003eFrame Size B Spacing Clearances\u003c\/h3\u003e\n\u003cp style=\"margin-bottom: 12px;\"\u003eThe Frame B chassis features standard physical constraints of 6.85 x 3.94 x 5.35 inches and carries a net weight of approximately 1.4 kg (3.09 lbs). This compact footprint allows for easy DIN-rail attachment. Ensure you leave adequate open space above and below the cooling heatsinks to allow proper air passage inside the enclosure.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #2c5282; font-size: 11pt; margin-top: 12px; margin-bottom: 6px;\"\u003eSingle-Phase Input Power Termination\u003c\/h3\u003e\n\u003cp style=\"margin-bottom: 12px;\"\u003eThe incoming single-phase 200–240 V AC supply utility wires should be terminated exclusively onto the primary L1 and L2 terminals. Do not attach any incoming hot source wires onto terminals U, V, or W, as these are dedicated output vectors for supplying balanced 3-phase current to the induction motor.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #2c5282; font-size: 11pt; margin-top: 12px; margin-bottom: 16px;\"\u003eEnvironmental Ingress Considerations\u003c\/h3\u003e\n\u003cp style=\"margin-bottom: 16px;\"\u003eThis micro inverter features a stock IP20 open-chassis rating and lacks environmental moisture seals. For machine configurations located in zones exposed to oil residue, conductive metal dust, or water spray, ensure the drive is installed inside a sealed secondary electrical cabinet (NEMA 12 or IP54).\u003c\/p\u003e\n\n\u003cp style=\"margin-bottom: 16px; padding: 0; font-size: 0; line-height: 0;\"\u003e \u003c\/p\u003e\n\n\u003ch2 style=\"color: #1a365d; font-size: 14pt; margin-bottom: 12px;\"\u003eEngineering Advantages\u003c\/h2\u003e\n\n\u003ch3 style=\"color: #2c5282; font-size: 11pt; margin-top: 12px; margin-bottom: 6px;\"\u003eHigh-Frequency Processing Window\u003c\/h3\u003e\n\u003cp style=\"margin-bottom: 12px;\"\u003eCapable of tracking and maintaining output currents up to a high frequency limit of 600 Hz, the VFD022EL21A easily manages specialized high-speed machinery assets, such as wood woodworking spindles, chemical mixers, and processing separators.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #2c5282; font-size: 11pt; margin-top: 12px; margin-bottom: 6px;\"\u003eProgrammable DC Injection Braking\u003c\/h3\u003e\n\u003cp style=\"margin-bottom: 12px;\"\u003eThe integrated DC injection control logic enables developers to apply a stationary DC magnetic field across the motor windings. This function provides holding torque to prevent mechanical drift on ventilation fans or heavily loaded conveyor setups prior to active motor acceleration.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #2c5282; font-size: 11pt; margin-top: 12px; margin-bottom: 16px;\"\u003eDense Side-by-Side Installation\u003c\/h3\u003e\n\u003cp style=\"margin-bottom: 16px;\"\u003eThe streamlined physical layout of the VFD-EL platform allows for adjacent, high-density side-by-side drive clusters on a single control rail. This layout significantly reduces required cabinet enclosure sizes and associated infrastructure costs.\u003c\/p\u003e\n\n\u003cp style=\"margin-bottom: 16px; padding: 0; font-size: 0; line-height: 0;\"\u003e \u003c\/p\u003e\n\n\u003ch2 style=\"color: #1a365d; font-size: 14pt; margin-bottom: 12px;\"\u003eTechnical FAQs\u003c\/h2\u003e\n\n\u003cp style=\"margin-bottom: 8px; font-weight: bold; color: #2d3748;\"\u003eQ1: Can I operate the VFD022EL21A drive by feeding it a standard 3-phase AC input?\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 16px; padding-left: 12px;\"\u003eA1: No, the VFD022EL21A is engineered exclusively for a single-phase 200–240 V AC input line. The internal rectifier circuit converts this single-phase source to provide a standard 3-phase variable frequency output for 3-phase induction motors.\u003c\/p\u003e\n\n\u003cp style=\"margin-bottom: 8px; font-weight: bold; color: #2d3748;\"\u003eQ2: What is the primary difference between Delta's VFD-E and VFD-EL drive series?\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 16px; padding-left: 12px;\"\u003eA2: The VFD-EL family is a cost-effective micro drive line that utilizes V\/Hz scalar control alongside a built-in digital operating interface. The VFD-E series is a modular vector micro drive platform that provides open-loop vector tracking and supports plug-in expansion cards.\u003c\/p\u003e\n\n\u003cp style=\"margin-bottom: 8px; font-weight: bold; color: #2d3748;\"\u003eQ3: Is the dynamic braking resistor pre-installed inside the Frame B chassis?\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 16px; padding-left: 12px;\"\u003eA3: The unit contains the internal dynamic braking control circuit (chopper), but the heavy-duty power resistor itself is an external accessory. To enable active dynamic braking on high-inertia loads, you must size and install an external braking resistor separately.\u003c\/p\u003e\n\n\u003cp style=\"margin-bottom: 16px; padding: 0; font-size: 0; line-height: 0;\"\u003e \u003c\/p\u003e\n\n\u003cp style=\"font-weight: bold; margin-bottom: 0;\"\u003eCommercial Contact Email: \u003ca href=\"mailto:sale@etowonauto.com\" style=\"color: #1a365d; text-decoration: underline;\"\u003esale@etowonauto.com\u003c\/a\u003e\u003c\/p\u003e","brand":"Delta","offers":[{"title":"Default Title","offer_id":51869242491012,"sku":"VFD022EL21A","price":150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/7454\/7844\/files\/VFD022EL21A.jpg?v=1779283784","url":"https:\/\/www.etowonauto.com\/nb\/products\/vfd022el21a-delta-electronics-11a-single-phase-micro-drive","provider":"Etowon Auto","version":"1.0","type":"link"}