The Square D DU321 Non-Fusible Safety Switch is a reliable and durable electrical component designed for industrial applications. With a maximum amperage of 30A and voltage of 240V, this 3-pole safety switch is suitable for a range of commercial and industrial settings. Manufactured by Square D in the United States, the DU321 model ensures safety and efficiency in electrical circuits. Ideal for businesses and industrial facilities, this non-fusible safety switch provides a reliable solution for controlling and disconnecting electrical power.