Ferraz Shawmut ATQR7-1 Time Delay Fuse Class CC

Ferraz Shawmut ATQR7-1 Time Delay Fuse, rated at 2 A and built with Amp-Trap technology, is a 600 V Class CC slow-blow fuse designed to tolerate brief inrush currents while protecting circuits from sustained overcurrents. The ATQR7-1 model belongs to Ferraz Shawmut’s Amp-Trap time-delay family, combining a compact Class CC form factor with a reliable time-delay design to fit into crowded panels and fuse blocks. With a voltage rating up to 600 V, this device is suitable for electrical assemblies that require solid overcurrent protection without nuisance tripping during transient surges. The Class CC designation refers to its small packaging and standard mounting footprint, enabling straightforward replacement in compatible holders. In service, it provides a balance between protection and operational tolerance, making it appropriate for circuits where brief surges are expected and a controlled response is essential.