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Mersen - formerly Ferraz Shawmut

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Ferraz Shawmut FUSERBLOC disconnect switches are extremely durable, manually operated, fusible disconnect switches.  All FUSERBLOC switches are supplied with fuse covers and line side shrouding as a standard feature . These switches provide the ultimate in short circuit protection when used with Ferraz Shawmut’s Class CC, J or L fuses . These heavy-duty switches are designed with the most up-to-date disconnect fuse and switch technology available. 

Features and Benefits

Double break contacts per pole ensure complete isolation of the fuse when the switch is in the OFF position . The optional TEST function (up to 400 A) enables testing of the control circuit auxiliaries without switching the main contacts . This function provides a simple alternative to a separately wired push button.

Approvals and Compliances

UL98 UL Listed, Guide WPZX, File E191605 CSA Certified, Class 465204, File 703166 IEC 947-3 CE markA wide array of handles are available to meet OSHA padlocking requirements, NEMA configurations, defeater options and NFPA 79 requirements .

AC Rating

600V AC

DC Rating

250V DC