Littelfuse Inc. WPB1 is an insulation boot accessory designed for use with Littelfuse fuseholders and in-line fuseholder applications. This component, identified by part number WPB1, offers enhanced protection and safety for electrical connections. Its robust construction ensures reliable performance in demanding environments. The WPB1 is suitable for use in various industries requiring robust circuit protection, including automotive, industrial automation, and telecommunications. The product is supplied in box packaging.