The Allen-Bradley 1771-WH Wiring Swing Arm Terminal is a high-quality 21-pin terminal designed for use with 1771 I/O systems. Manufactured by Allen-Bradley in the United States, this black terminal features a pin connector style and is compatible with wire mounting types. Ideal for electrical equipment and supplies, this wiring swing arm terminal provides a reliable and efficient solution for connecting and disconnecting wires in industrial settings.