Description

The L75QS series is a next generation high-speed fuse

for the protection of power semiconductor devices and is

designed in the traditional round body bolted style package.

L75QS series high-speed fuses rated at 750 V dc are

extremely current limiting and are used to protect power

converters, drives and control circuit applications. Designed

with lower I2t performance characteristics, these fuses

provide balanced performance to extend longevity while

lowering potentially damaging heat energy to the devices

being protected.

In addition L75QS series fuses have been designed with a

universal mounting option to meet customer requirements

for installation into a variety of application configurations.

Littelfuse POWR-SPEED products offer optimized circuit

protection at the extremely fast speed required to protect

modern day, sensitive, high-power semiconductor devices.

Features

Compliance with US and Canadian requirements

Traditional North American bolted style dimensions

750 V dc performance

Direct bus-bar mount or stud mount design

Halogen free, RoHS and REACH compliant

Applications

Power converters (inverters, rectifiers)

Power supplies, UPS

EV charging stations

Variable speed drives

Dc common bus

Specifications

Voltage Rating Dc: 750 V

Amperage Rating 35–800 A

Interrupting Rating Dc: 50 kA

Time Constant 10 ms

Material Body: Melamine

Caps: Copper Alloy

Approvals UL Recognized (E71611)

cURus (E71611)

Environmental RoHS compliant, REACH

Country of Origin Mexico

Operating Temperature -55 °C to +125 °C

Storage Temperature Up to 35 °C with relative humidity