Free shipping to the continental US only The Square D Hu363 100A 600V Heavy Duty Safety Switch Fusible is a reliable and durable electrical component designed for industrial and commercial applications. This switch features a built-in fusible and has a maximum amperage of 100A, making it suitable for heavy-duty use. Its compact square design makes it easy to install and operate, ensuring the safety of electrical systems. With its trusted Square D brand and high-quality construction, this safety switch is a dependable choice for various electrical setups. Plus, with fast free shipping, you can get it quickly to keep your electrical systems secure.