L75QS Series - High-Speed Round Body Fuses

Littelfuse L75QS
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Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse.

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 Vdc 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.

Access specifications, certifications, check availability and order parts below

Catalog #Amps (A)VDC (V)Interrupting RatingOpeningStockSamplesCompare
L75QS0353575050kA@750VDCVery Fast-Acting (FF)CheckOrder
L75QS0404075050kA@750VDCVery Fast-Acting (FF)CheckOrder
L75QS0505075050kA@750VDCVery Fast-Acting (FF)CheckOrder
L75QS0606075050kA@750VDCVery Fast-Acting (FF)CheckOrder
L75QS0707075050kA@750VDCVery Fast-Acting (FF)CheckOrder
L75QS0808075050kA@750VDCVery Fast-Acting (FF)CheckOrder
L75QS0909075050kA@750VDCVery Fast-Acting (FF)CheckOrder
L75QS10010075050kA@750VDCVery Fast-Acting (FF)CheckOrder
L75QS12512575050kA@750VDCVery Fast-Acting (FF)CheckOrder
L75QS15015075050kA@750VDCVery Fast-Acting (FF)CheckOrder
L75QS17517575050kA@750VDCVery Fast-Acting (FF)CheckOrder
L75QS20020075050kA@750VDCVery Fast-Acting (FF)CheckOrder
L75QS22522575050kA@750VDCVery Fast-Acting (FF)CheckOrder
L75QS25025075050kA@750VDCVery Fast-Acting (FF)CheckOrder
L75QS30030075050kA@750VDCVery Fast-Acting (FF)CheckOrder
L75QS35035075050kA@750VDCVery Fast-Acting (FF)CheckOrder
L75QS40040075050kA@750VDCVery Fast-Acting (FF)CheckOrder
L75QS45045075050kA@750VDCVery Fast-Acting (FF)CheckOrder
L75QS50050075050kA@750VDCVery Fast-Acting (FF)CheckOrder
L75QS60060075050kA@750VDCVery Fast-Acting (FF)CheckOrder
L75QS70075075050kA@750VDCVery Fast-Acting (FF)CheckOrder
L75QS80080075050kA@750VDCVery Fast-Acting (FF)CheckOrder