Littelfuse — PSX Series DC Fuses

The PSX series 1,500 V dc high-speed, square-body fuses from Littelfuse offer very fast response to over-current events. These fast-acting fuses protect circuits in battery energy-storage systems, photovoltaic inverters and other high-voltage dc applications.

The PSX series fuses are available with current ratings ranging from 80 A to 1,400 A. Supplied in NH 1XL and NH 3XL packages, the PSX fuses are available with flush-end, DIN, or bolted-blade style mounting terminations. 

All fuses have a visual indicator to show whether the fuse is blown. Fuses can be installed with an optional micro-switch to provide remote fault indication if required.

The PSX series is certified to UL 248-13, and meets current European high-speed semiconductor fuse standards as well as future battery-protection specifications.