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LFSE JLLS300 FUS 600V F/A CLASS T 3

Manufacturer: Littlefuse | Catalog # JLLS300 | North Coast Part # 334033
$252.82/ea
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CA Prop65 Warning CA Prop65 Warning Specification Sheet
Space-saving Class T fuses are the most compact fuses available in ratings above 30 amperes . less than one-third the size of comparable Class R fuses. When rated in accordance with the NEC, Class T fuses provide fast-acting overload and short circuit protection for non-inductive circuits and equipment. Used in inductive circuits, the ampere rating of Class T fuses must be increased to prevent opening on inrush currents. In such instances, Class T fuses may provide only short circuit protection. For motor and general purpose circuits where space is not critical, we recommend POWR-PRO™ JTD_ID Indicator series, LLNRK/LLSRK series, or FLSR_ID Indicator series. Applications:

Technical Information

Amperage
300 Amp
Applications
Variable Speed Drives
Interrupt Rating
200 kAIC
Response Time
Blade
Size
3.63L; 1.59D inches
Type
Class T
Voltage
300 Volt

Manufacturer Information

Brand
Littelfuse
Sub Brand
POWR-GARD JLLS Series

General Product Info

12-Digit UPC
079458190915
GTiN
00079458190915
Product UPC
07945819091

Certifications and Compliance

CA Prop65 Warning
WARNING: This product can expose you to chemicals including nickel, which is known to the State of California to cause cancer.
Applications
  • Protection of individual electric services and meters.
  • Main switches containing Class T fuses may be used to provide compact protection for meter stacks.
  • Molded case circuit breaker load centers and panelboards have increased interrupting ratings when series rated with Littelfuse Class T fuses. Refer to panelboard manufacturers literature for UL Listed combination of fuses and panelboards.
  • Series ratings up to 200,000 amperes are available.
  • Typical three-pole Class T fuse blocks require less than 50% of the panel area required for Class R fuse blocks. Switch enclosures, fuse pullouts, and other equipment using Class T fuses are often correspondingly more compact.
  • 200,000 A.I.R. Reliable interruption of all overcurrents up to 200,000 amperes.
  • Extremely current limiting Stops damaging short circuit current faster than any mechanical protective device.
  • Fast-Acting Provides fast-acting overload protection to equipment such as variable speed drives, rectifiers and other equipment containing surge-sensitive components.
  • Current limiting design greatly reduces damage to equipment caused by heating and magnetic effects of short circuit currents.
  • Extremely current limiting design often permits use of readily available, less costly equipment.
  • Used as input or output fuses for surge-sensitive components, such as variable speed drives and rectifiers, fast-acting Class T JLLS fuses may prevent opening of expensive semiconductor fuses protecting individual components.
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