Series: PSR Bolted Blade

The PSR Bolted Blade series is a POWR-SPEED® high-speed, square body fuse specifically designed for the protection of power semiconductor devices such as diodes, triacs, IGBTs, SCRs, MOSFETs, and other solid-state devices that are typically used in power conversion and power conditioning equipment. Variable frequency drives, inverters, UPS, rectifiers, and soft-starters are examples of equipment designed with sensitive power semiconductor devices that cannot withstand any line surge or overcurrent conditions and require high-speed protection. The PSR series with bolted blades is designed and tested to IEC 60269-4.

Littelfuse POWR-SPEED® PSR series products offer optimized circuit protection at the extremely fast speed required to protect modern-day power conversion devices. This series is offered in bolted blade style termination (typical in the North American market) with visual blown fuse indication standard and an optional microswitch for external indication.