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Technical specifications, features, applications and purchasing information.
| Brand | Littelfuse |
| Model Number | KLDR-2 |
| Manufacturer Catalog Number | KLDR002 |
| Product Marking | KLDR 2A |
| Product Category | Class CC Time-Delay Fuse |
| Product Series | POWR-GARD KLDR |
| Current Rating | 2 A (2000 mA) |
| AC Voltage Rating | 600 VAC |
| DC Voltage Rating | 300 VDC |
| Fuse Class | UL Class CC |
| Operating Characteristic | Time-Delay |
The Littelfuse KLDR-2 provides a 2 ampere current rating for appropriately specified industrial control circuits, control transformers and inductive electrical equipment. Its 2000 mA rating supports applications requiring Class CC time-delay overcurrent protection.
Rated for compatible AC circuits up to 600 VAC and DC circuits up to 300 VDC. Separate AC and DC ratings allow electrical protection selection according to circuit operating voltage and prospective short-circuit current.
The time-delay design accommodates brief magnetizing inrush currents associated with control transformers, solenoids and similar inductive components. The applicable UL opening-time requirement specifies a minimum of 12 seconds at 200% of rated current rather than a fixed clearing time.
Provides a 200 kA RMS symmetrical interrupting rating at 600 VAC and a separate 20 kA interrupting rating at 300 VDC. Littelfuse identifies the DC interrupting rating as self-certified. Both ratings must be evaluated against available fault current.
The current-limiting construction helps reduce the heating and magnetic effects of short-circuit currents. Its rejection capability helps prevent the use of unsuitable lower-voltage or lower-interrupting-rated fuses when paired with corresponding rejection-style fuse holders.
Features a melamine body, nickel-plated bronze caps and a nominal 10.3 x 38.1 mm cartridge format. Compatible mounting options include appropriately rated Littelfuse L60030C, LPSC/LFPSC, LEC and 571/572 fuse holder series.
We support online purchase of the Littelfuse KLDR-2 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. Please verify the required model, current rating and purchase quantity before ordering.
What is the Littelfuse KLDR-2?
It is a 2 A Class CC time-delay, current-limiting cartridge fuse from the Littelfuse POWR-GARD KLDR series. The fuse is intended for compatible control transformer, solenoid and industrial control applications.
What is the manufacturer catalog number?
The corresponding Littelfuse catalog number is KLDR002. The manufacturer identifies the product marking as KLDR 2A.
What is the current rating?
The fuse is rated for 2 amperes, equivalent to 2000 milliamperes.
What are its AC and DC voltage ratings?
The manufacturer specifies 600 VAC and 300 VDC. The circuit operating voltage must remain within the applicable rating.
What are the interrupting ratings?
The AC interrupting rating is 200,000 amperes RMS symmetrical at 600 VAC. The DC interrupting rating is 20,000 amperes at 300 VDC and is identified by Littelfuse as self-certified.
Is KLDR-2 a time-delay or fast-acting fuse?
KLDR-2 is a time-delay fuse. The KLDR series is designed to accommodate brief magnetizing inrush currents from control transformers, solenoids and similar inductive loads.
Does KLDR-2 open in exactly 12 seconds at twice the rated current?
No. The applicable UL requirement specifies an opening time of at least 12 seconds at 200% of rated current. This is a minimum requirement rather than a fixed opening time. Consult the manufacturer's time-current curves when evaluating circuit protection.
What are the pre-arcing and total clearing I²t values?
Littelfuse specifies a pre-arcing I²t of 0.8615 A²s and a total clearing I²t of 14.01 A²s. The total clearing value is published for the manufacturer's 200 kA test condition.
What are the physical dimensions?
The nominal cartridge dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.
What materials and fuse holders are used?
The KLDR series uses a melamine body and nickel-plated bronze caps. Littelfuse lists compatible holder families including L60030C, LPSC/LFPSC, LEC and 571/572. Confirm electrical and mechanical compatibility with the intended installation.
Is KLDR-2 UL listed and RoHS compliant?
Littelfuse identifies the KLDR series as UL Listed under file E81895, CSA Certified under file LR29862 and RoHS compliant. Its datasheet references a CE declaration. The DC interrupting rating is manufacturer self-certified.
What should be verified before ordering KLDR-2?
Confirm the KLDR-2 or KLDR002 designation, 2 A current rating, 600 VAC or 300 VDC circuit requirement, applicable AC or DC interrupting capacity, time-delay behavior, compatible Class CC fuse holder and purchase quantity. Littelfuse lists KLDR002.TXP for a manufacturer 10-piece pack and KLDR002.HXP for a 100-piece pack; these codes do not determine the quantity supplied in an individual store listing.
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Available in stock (2000)
| Brand | Littelfuse |
| Model Number | KLDR-2 |
| Manufacturer Catalog Number | KLDR002 |
| Product Marking | KLDR 2A |
| Product Category | Class CC Time-Delay Fuse |
| Product Series | POWR-GARD KLDR |
| Current Rating | 2 A (2000 mA) |
| AC Voltage Rating | 600 VAC |
| DC Voltage Rating | 300 VDC |
| Fuse Class | UL Class CC |
| Operating Characteristic | Time-Delay |
The Littelfuse KLDR-2 provides a 2 ampere current rating for appropriately specified industrial control circuits, control transformers and inductive electrical equipment. Its 2000 mA rating supports applications requiring Class CC time-delay overcurrent protection.
Rated for compatible AC circuits up to 600 VAC and DC circuits up to 300 VDC. Separate AC and DC ratings allow electrical protection selection according to circuit operating voltage and prospective short-circuit current.
The time-delay design accommodates brief magnetizing inrush currents associated with control transformers, solenoids and similar inductive components. The applicable UL opening-time requirement specifies a minimum of 12 seconds at 200% of rated current rather than a fixed clearing time.
Provides a 200 kA RMS symmetrical interrupting rating at 600 VAC and a separate 20 kA interrupting rating at 300 VDC. Littelfuse identifies the DC interrupting rating as self-certified. Both ratings must be evaluated against available fault current.
The current-limiting construction helps reduce the heating and magnetic effects of short-circuit currents. Its rejection capability helps prevent the use of unsuitable lower-voltage or lower-interrupting-rated fuses when paired with corresponding rejection-style fuse holders.
Features a melamine body, nickel-plated bronze caps and a nominal 10.3 x 38.1 mm cartridge format. Compatible mounting options include appropriately rated Littelfuse L60030C, LPSC/LFPSC, LEC and 571/572 fuse holder series.
We support online purchase of the Littelfuse KLDR-2 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. Please verify the required model, current rating and purchase quantity before ordering.
What is the Littelfuse KLDR-2?
It is a 2 A Class CC time-delay, current-limiting cartridge fuse from the Littelfuse POWR-GARD KLDR series. The fuse is intended for compatible control transformer, solenoid and industrial control applications.
What is the manufacturer catalog number?
The corresponding Littelfuse catalog number is KLDR002. The manufacturer identifies the product marking as KLDR 2A.
What is the current rating?
The fuse is rated for 2 amperes, equivalent to 2000 milliamperes.
What are its AC and DC voltage ratings?
The manufacturer specifies 600 VAC and 300 VDC. The circuit operating voltage must remain within the applicable rating.
What are the interrupting ratings?
The AC interrupting rating is 200,000 amperes RMS symmetrical at 600 VAC. The DC interrupting rating is 20,000 amperes at 300 VDC and is identified by Littelfuse as self-certified.
Is KLDR-2 a time-delay or fast-acting fuse?
KLDR-2 is a time-delay fuse. The KLDR series is designed to accommodate brief magnetizing inrush currents from control transformers, solenoids and similar inductive loads.
Does KLDR-2 open in exactly 12 seconds at twice the rated current?
No. The applicable UL requirement specifies an opening time of at least 12 seconds at 200% of rated current. This is a minimum requirement rather than a fixed opening time. Consult the manufacturer's time-current curves when evaluating circuit protection.
What are the pre-arcing and total clearing I²t values?
Littelfuse specifies a pre-arcing I²t of 0.8615 A²s and a total clearing I²t of 14.01 A²s. The total clearing value is published for the manufacturer's 200 kA test condition.
What are the physical dimensions?
The nominal cartridge dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.
What materials and fuse holders are used?
The KLDR series uses a melamine body and nickel-plated bronze caps. Littelfuse lists compatible holder families including L60030C, LPSC/LFPSC, LEC and 571/572. Confirm electrical and mechanical compatibility with the intended installation.
Is KLDR-2 UL listed and RoHS compliant?
Littelfuse identifies the KLDR series as UL Listed under file E81895, CSA Certified under file LR29862 and RoHS compliant. Its datasheet references a CE declaration. The DC interrupting rating is manufacturer self-certified.
What should be verified before ordering KLDR-2?
Confirm the KLDR-2 or KLDR002 designation, 2 A current rating, 600 VAC or 300 VDC circuit requirement, applicable AC or DC interrupting capacity, time-delay behavior, compatible Class CC fuse holder and purchase quantity. Littelfuse lists KLDR002.TXP for a manufacturer 10-piece pack and KLDR002.HXP for a 100-piece pack; these codes do not determine the quantity supplied in an individual store listing.
