Littelfuse (USA)

Cầu chì Class-L LDC Series

Littelfuse POWR-PRO® LDC series Class L fuses represent another first in fuse protection. LDC series fuses are the first UL Listed 600 volts AC and DC Class L fuse. Since they may be used for both AC and DC, they eliminate the concern that AC only fuses may be inserted into DC circuits.

While LDC series fuses’ UL Listed DC interrupting rating is more than adequate for most applications (50,000 amperes at a 16 millisecond time constant), tests in our high power testing laboratory have shown that this remarkable fuse is capable of performing at much longer time constants. This makes the fuse uniquely suited for such applications as crane rail circuits and mass transit systems. Contact the factory for application information for special needs such as this.

For AC-only systems, consider the use of POWR-PRO® KLPC series fuses. They have a full ten seconds time-delay at 500% rated current, and have a wider range of ratings.

Applications:

·     UPS protection, especially for large battery circuits

·     DC distribution

·     DC variable speed drives

·     Protection of crane rail circuits and other large DC equipment such as electrical power shovels, ships and dock cranes, etc.

·     Mass transit systems, including new light rail applications

·     General-purpose AC/DC circuits for mains, feeders and branch circuits

Features:

·     600 Volt AC/DC rated — “All-purpose” Class L fuse reduces inventory requirements because the need for special fuses is eliminated.

·     UL Listed 200,000 A.I.R. AC – 50,000 A.I.R. DC — Reliable interruption of all overcurrents up to their ratings. Minimizes the need for time-consuming and expensive short-circuit studies.

·     Moderate time delay — Four seconds time delay at 500% current provides adequate time-delay for many AC applications and most DC applications. They will withstand most harmless overloads or line surges. If your needs exceed the LDC capabilities, consider the use of KLPC fuses for AC applications.

·     Selective coordination — LDC series fuses coordinate well with all Littelfuse fuses rated 600 amperes or less. A combination of LDC and IDSR series fuses provide a complete 600 volt rated DC system.

·     Extremely current limiting — Maximum current limitation reduces damage to circuits and equipment under short-circuit conditions. Stops damaging short circuits faster than any mechanical protective device.

 

Access specifications, certifications, check availability and order parts below

 

Catalog #

Amps (A)

VAC (V)

VDC (V)

Interrupting Rating

Opening

Size

             

LDC1000

1000

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC1100

1100

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC1200

1200

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC1201

1201

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC1300

1300

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC1350

1350

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC1400

1400

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC150

150

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC1500

1500

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC1600

1600

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC1601

1601

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC1800

1800

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC1900

1900

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC200

200

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC2000

2000

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC250

250

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC300

300

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC350

350

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC400

400

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC450

450

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC500

500

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC600

600

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC601

601

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC601GP

601

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC650

650

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC700

700

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC750

750

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC800

800

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

LDC900

900

600

600

200000A@600VAC/ 50000A@600VDC

Fast-Acting

Bolt-In

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