{"product_id":"allen-bradley-pn-221479-printed-circuit-board","title":"Allen-Bradley PN-221479 Printed Circuit Board","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley PN-221479 Printed Circuit Board is an explosion-proof frequency converter board designed for use in hazardous environments where motor drive control is required. This Allen-Bradley module carries the PN-221479 designation and functions as a component of a frequency converter system that manages motor speed and torque through drive electronics. As a dedicated PCB within a hazardous-location drive assembly, the PN-221479 communicates with other drive components to implement the control algorithms that regulate AC motors in demanding industrial settings. The board is manufactured to align with Allen-Bradley’s engineering standards and supports integration with compatible frequency converter hardware from the same family, enabling streamlined servicing and replacement within existing systems. Common applications include industrial motor control in chemical plants, oil and gas facilities, and other environments requiring explosion protection for electrical equipment, where reliable speed control and torque management are essential for process stability. When selecting this PCB, confirm exact compatibility with your frequency converter model and verify electrical specifications such as input voltage and signal interfaces with your control system to ensure proper installation and safe operation. The PN-221479 designation distinguishes this board within the Allen-Bradley lineup, making it a recognizable choice for technicians familiar with the brand’s drive electronics ecosystem.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":46256154444010,"sku":null,"price":283.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8039\/3450\/files\/GTG-STOCK-083.png?v=1788727429","url":"https:\/\/gtghardware.com\/products\/allen-bradley-pn-221479-printed-circuit-board","provider":"GTG Hardware","version":"1.0","type":"link"}