L70QS Series - High-Speed Round Body Fuses

The L70QS Series is a next generation High-Speed Fuse for the protection of power semiconductor devices and is designed in the Traditional North American Bolted Style package.

L70QS Series High-Speed Fuses 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 L70QS 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. Such products are commonly found in various industries including pulp and paper industries, cranes and heavy-lifting equipment, processing industries, wastewater treatment plants and large factories and MRO facilities.

Access specifications, certifications, check availability and order parts below

Catalog #Amps (A)VAC (V)VDC (V)Interrupting RatingOpeningStockSamplesCompare
L70QS03535700700200kA@700VACVery Fast-Acting (FF)CheckOrder
L70QS04040700700200kA@700VACVery Fast-Acting (FF)CheckOrder
L70QS05050700700200kA@700VACVery Fast-Acting (FF)CheckOrder
L70QS06060700700200kA@700VACVery Fast-Acting (FF)CheckOrder
L70QS07070700700200kA@700VACVery Fast-Acting (FF)CheckOrder
L70QS08080700700200kA@700VACVery Fast-Acting (FF)CheckOrder
L70QS09090700700200kA@700VACVery Fast-Acting (FF)CheckOrder
L70QS100100700700200kA@700VACVery Fast-Acting (FF)CheckOrder
L70QS125125700700200kA@700VACVery Fast-Acting (FF)CheckOrder
L70QS150150700700200kA@700VACVery Fast-Acting (FF)CheckOrder
L70QS175175700700200kA@700VACVery Fast-Acting (FF)CheckOrder
L70QS200200700700200kA@700VACVery Fast-Acting (FF)CheckOrder
L70QS225225700700200kA@700VACVery Fast-Acting (FF)CheckOrder
L70QS250250700700200kA@700VACVery Fast-Acting (FF)CheckOrder
L70QS300300700700200kA@700VACVery Fast-Acting (FF)CheckOrder
L70QS350350700700200kA@700VACVery Fast-Acting (FF)CheckOrder
L70QS400400700700200kA@700VACVery Fast-Acting (FF)CheckOrder
L70QS450450700700200kA@700VACVery Fast-Acting (FF)CheckOrder
L70QS500500700700200kA@700VACVery Fast-Acting (FF)CheckOrder
L70QS600600700700200kA@700VACVery Fast-Acting (FF)CheckOrder
L70QS700700700700200kA@700VACVery Fast-Acting (FF)CheckOrder
L70QS800800700700200kA@700VACVery Fast-Acting (FF)CheckOrder

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