Description
The L25S Series is a traditional North American Bolted style high-speed fuse for protection of power semiconductor devices that are rated up to 250 V ac and 200 V dc.
Littelfuse POWR-SPEED® products offer optimized circuit protection at the extremely fast speed required to protect power semiconductor devices such as silicon controlled rectifiers (SCR’s), diodes, thyristors, triacs, transistors, and similar solid-state devices. These devices are used in power equipment including variable speed drives, power rectifiers, UPS systems, dc power supplies, and in a wide range of electronic equipment. May be used wherever extremely
fast-acting, current-limiting fuses are used with no time
delay required.

Features/Benefits
Compliance with US and Canadian requirements
Traditional North American Bolted Style dimensions
Class aR performance
Direct bus-bar mount or stud mount design
RoHS compliant applications

Applications
Power converters (inverters, rectifiers, UPS)
Power supplies
Industrial heaters
Variable speed drives
Battery chargers
Soft starters

Specifications
Voltage Ratings Ac: 250 V
Dc: 200 V–250 V
Ampere Range 1 - 800 A
Interrupting Rating Ac: 200 kA
Dc: 20 kA Self Certified
Approvals UL Recognized (File: E71611)
CSA Recognized (File: LR29862)
Time Constant 10ms
Material Body: Melamine
Caps: Copper Alloy (Silver Plated)
Environmental RoHS
Country of Origin Mexico
Operating Temperature -55 °C to +125 °C
Storage Temperature Up to 35 °C with Relative Humidity <65 %