{"product_id":"delta-electronics-vfd007b21a-variable-frequency-drive","title":"Delta Electronics VFD007B21A Variable Frequency Drive","description":"\u003cdiv\u003e\u003cp\u003eThe Delta Electronics VFD007B21A Variable Frequency Drive delivers precise motor speed control for general-purpose applications, packaged in the VFD-B Series as a compact, panel-mounted drive for 0.75 kW (1 HP typical for this frame size). It accepts 200–240 VAC input and supports either single-phase or three-phase input depending on the model, enabling reliable, adjustable torque for pumps, fans, conveyors, and HVAC systems. The drive supports V\/Hz control, sensorless vector control, and is closed-loop vector capable, with an output frequency range up to 400–2000 Hz in series capability for demanding frequency motor control. It offers constant torque output, and communication via RS-485 (Modbus) with optional expansion cards for extended field bus options. Built-in PID control, programmable parameters, and a keypad interface provide straightforward tuning and on-site adjustments. Protection features include overcurrent, overvoltage, overload, and thermal protection, while enclosure ratings of NEMA 1 \/ IP20 and forced-air cooling suit panel installations in general industrial environments. Mounting is panel-mounted, designed for general-purpose motor speed control, and suitable for water and wastewater systems, material handling equipment, compressors, elevators, and ventilation applications to improve energy efficiency and system reliability.\u003c\/p\u003e\u003c\/div\u003e","brand":"Delta","offers":[{"title":"New","offer_id":50558376018222,"sku":"New","price":604.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/VFD007B21A.jpg?v=1752134687","url":"https:\/\/plgautomation.com\/products\/delta-electronics-vfd007b21a-variable-frequency-drive","provider":"PLG Automation ","version":"1.0","type":"link"}