The Littelfuse L70QS200 is a Powr-Speed high-speed semiconductor fuse rated 200 A for 700 VAC/VDC systems. It uses a melamine round cartridge body (1.218 in dia x 5.085 in L) with bolt/direct busbar/stud mounting and Class AR protection. The fuse provides very fast-acting operation (~10 ms), interrupt ratings of 200 kA AC and 50 kA DC, low I2t characteristics, and an operating range of -55 to 125 C for industrial power converter and drive applications.
200 A continuous rating for 700 VAC/VDC with 200 kA AC and 50 kA DC interrupt capacity
Melamine round cartridge body (1.218 in dia x 5.085 in L) with bolt/direct busbar/stud mounting and traditional North American bolted-style package
Very fast-acting (~10 ms) with low I2t to limit damaging energy; operating temperature -55 to 125 C
Product Highlights
High-speed 200 A semiconductor fuse for 700 V systems; 200 kA AC / 50 kA DC interrupt rating; bolt-in melamine round body with low I2t performance.
Product Information
Standard Information
Brand: LITTELFUSE
Manufacturer Part Number: L70QS200
Country of Origin: United States
Technical Specifications
Manufacturer
Littelfuse
Manufacturer Part Number
L70QS200
Brand
Littelfuse
Series
L70QS (Powr-Speed)
Type
Semiconductor fuse (high-speed / very fast-acting)
Current Rating (Continuous)
200 A
Voltage Rating
700 VAC/VDC
Voltage Rating (AC)
700 V AC
Voltage Rating (DC)
700 V DC
Interrupt Rating (AC)
200 kA
Interrupt Rating (DC)
50 kA
Interrupt Rating (combined)
200 kA AC / 50 kA DC
Class
AR
Body Size
1.218 in Dia x 5.085 in L
Body Diameter
1.218 in
Body Length
5.085 in
Body Type
Cartridge / Round
Body Material
Melamine
Mounting Type
Bolt / Direct Busbar / Stud
Mounting Method
Bolt-In
Response Time
~10 ms
Opening/Speed
Very fast-acting (FF)
I2t Characteristics
Low I2t (extremely current limiting)
Operating Temperature Range
-55 to 125 C
PG Holder
LSCR Series
Approvals/Certifications
RoHS compliant; REACH compliant; cULus File No. E71611; CE certified
Country of Origin
United States
Typical Applications
Power converters (inverters, rectifiers), power supplies, UPS, variable speed drives, control circuits, soft starters, industrial equipment