Ferraz Shawmut & Mersen Circuit Protection
Fuses, fuseholders, disconnects, power distribution and surge protection. Sold and distributed by Gross Automation.
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Surge-Trap® STT4X Series
Mersen's Surge-Trap STT4X is a UL Type 1 SPD for outdoor applications — extending the low-cost Surge-Trap line beyond the panel into the environments where antiquated surge protection used to be the only option.
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UL Power Fuses & Ultrasafe Holders
From North American round fuses to Ultrasafe finger-safe fuseholders and low-voltage disconnect switches — research the full line here, organized by category in the sidebar.
General purpose fuses »
Ultrasafe fuseholders »
About Ferraz & Gross Automation
Ferraz Shawmut is now Mersen — same products, same quality. As an authorized distributor, Gross Automation sells the Mersen line. Research here, then check pricing and availability.
Breakers and distribution blocks for a panel? Our UL 508A shop builds power distribution panels to order.