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Littelfuse

Littelfuse KLDR-1/10 Class CC Time-Delay Fuse

SKU: LL1-LI-KLDR-1/10*10
$48.86
Available
Littelfuse

Littelfuse KLDR-1/10 Class CC Time-Delay Fuse

SKU: LL1-LI-KLDR-1/10*10
PRODUCT PRICE USD
$48.86
Available to order
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PRODUCT DOCUMENTATION

Product Information

Technical specifications, features, applications and purchasing information.

Technical Specifications

Brand Littelfuse
Model Number KLDR-1/10
Product Category Class CC Time-Delay Fuse
Product Series POWR-GARD KLDR
Current Rating 0.1 A (100 mA, 1/10 A)
AC Voltage Rating 600 VAC
DC Voltage Rating 300 VDC
Fuse Class UL Class CC
Operating Characteristic Time-Delay

Key Features

0.1 A Low-Current Protection

The Littelfuse KLDR-1/10 provides a 0.1 ampere current rating for appropriately designed low-current industrial control and inductive circuits. Its 100 mA rating supports applications requiring precisely specified Class CC fuse protection.

600 VAC and 300 VDC Ratings

Rated for compatible electrical circuits up to 600 VAC or 300 VDC. Littelfuse provides separate AC and DC voltage and interrupting ratings, allowing the fuse to be evaluated for suitably designed AC and DC applications.

Time-Delay Characteristics

Designed to accommodate temporary magnetizing current surges encountered in control transformers, solenoids and similar inductive components. The UL opening-time requirement specifies a minimum of 12 seconds at 200% of rated current, rather than a fixed opening time.

High Interrupting Capacity

Provides a 200 kA RMS symmetrical AC interrupting rating and a separately specified 20 kA DC interrupting rating. Littelfuse identifies the DC rating as self-certified. These ratings support protection design where available fault current is within the applicable limits.

Current-Limiting Class CC Construction

The current-limiting design helps reduce the thermal and magnetic effects of short-circuit currents. Its rejection feature prevents installation of certain fuses with lower voltage or interrupting ratings when used with corresponding rejection-type fuse holders.

Compact Industrial Fuse Design

Uses a melamine body and nickel-plated bronze caps in a nominal 10.3 x 38.1 mm cartridge format. Suitable mounting accessories include compatible Littelfuse Class CC holders such as the L60030C and LPSC/LFPSC series.

Applications

  • Industrial control transformer protection
  • Solenoid circuit overcurrent protection
  • Low-current inductive control circuits
  • Industrial control panels using Class CC fuses
  • Motor branch circuits with suitable IEC motor controllers
  • Motor control circuits with compatible NEMA contactors
  • Compatible 600 VAC and 300 VDC control circuits
  • Exact-rating replacement in suitable Class CC fuse holders

Purchase Information

We support online purchase of the Littelfuse KLDR-1/10 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Confirm the required purchase quantity and packaging configuration before ordering.

Frequently Asked Questions

What is the Littelfuse KLDR-1/10?
It is a 0.1 A Class CC time-delay, current-limiting cartridge fuse in the Littelfuse POWR-GARD KLDR series, intended for appropriately designed control transformer, solenoid and industrial control applications.


What is the manufacturer catalog number?
The 1/10 A version is identified as KLDR.100 in the Littelfuse manufacturer datasheet. KLDR-1/10 is a commonly used fractional-amperage model designation.


What is the current rating?
The current rating is 0.1 ampere, equal to 100 milliamperes or one-tenth of an ampere.


What are the AC and DC voltage ratings?
The fuse is rated for 600 VAC and 300 VDC. These are separate voltage ratings and should be evaluated according to the intended circuit.


What are the AC and DC interrupting ratings?
The AC interrupting rating is 200,000 amperes RMS symmetrical. The DC interrupting rating is 20,000 amperes and is identified by Littelfuse as self-certified.


Is KLDR-1/10 a time-delay or fast-acting fuse?
KLDR-1/10 is a time-delay fuse. Littelfuse designed the KLDR series to accommodate temporary current surges associated with control transformers, solenoids and similar inductive components.


Does the fuse open in exactly 12 seconds at twice its rated current?
No. Littelfuse specifies a minimum opening time of 12 seconds at 200% of rated current under the UL agency requirements. This is not a fixed opening time. Consult the manufacturer's time-current curves for application analysis.


What are the fuse dimensions?
The nominal dimensions are 10.3 mm in diameter and 38.1 mm in length, equivalent to approximately 0.41 x 1.50 inches.


What materials are used in KLDR-1/10?
Littelfuse specifies a melamine body with nickel-plated bronze caps. The fuse uses a Class CC cartridge configuration with rejection capability.


Which fuse holders can be used?
The manufacturer recommends compatible holders from the L60030C, LPSC/LFPSC Touch-Safe, LEC and 571/572 series. Confirm holder ratings and the specific installation arrangement before selection.


Is KLDR-1/10 UL listed and RoHS compliant?
The Littelfuse KLDR datasheet identifies the series as UL Listed under file E81895, CSA Certified under file LR29862 and RoHS compliant. The manufacturer also provides a CE declaration reference. The listed DC interrupting rating is self-certified by Littelfuse.


What should be checked before ordering?
Verify the KLDR-1/10 or KLDR.100 model designation, 0.1 A current rating, 600 VAC or 300 VDC rating, applicable AC or DC interrupting capacity, time-delay behavior, fuse-holder compatibility and required quantity. The manufacturer lists KLDR.100TXP for a 10-piece pack and KLDR.100HXP for a 100-piece pack; these manufacturer packaging codes do not determine the quantity supplied in an individual store listing.

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