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Technical specifications, features, applications and purchasing information.
| Brand | Littelfuse |
| Model Number | KLDR-1-1/2 |
| Manufacturer Catalog Number | KLDR01.5 |
| Product Marking | KLDR 1 1/2 A |
| Product Category | Class CC Time-Delay Fuse |
| Product Series | POWR-GARD KLDR |
| Current Rating | 1.5 A (1500 mA, 1-1/2 A) |
| AC Voltage Rating | 600 VAC |
| DC Voltage Rating | 300 VDC |
| Fuse Class | UL Class CC |
| Operating Characteristic | Time-Delay |
The Littelfuse KLDR-1-1/2 provides a 1.5 ampere current rating for properly specified industrial control and transformer protection circuits. Its 1500 mA rating supports electrical designs requiring Class CC time-delay overcurrent protection.
Designed for compatible AC circuits up to 600 VAC and DC circuits up to 300 VDC. Separate interrupting ratings allow selection based on the circuit's operating voltage and prospective short-circuit current.
The time-delay characteristic accommodates temporary current surges associated with energizing control transformers, solenoids and similar inductive components. Manufacturer documentation specifies a minimum opening time of 12 seconds at 200% of rated current under the applicable UL requirement.
Rated to interrupt 200 kA RMS symmetrical in AC circuits and 20 kA in DC circuits at their respective rated voltages. Littelfuse identifies its DC interrupting rating as manufacturer self-certified.
Current-limiting operation reduces the potential heating and magnetic effects of short-circuit currents. Its rejection feature helps prevent installation of fuses having insufficient voltage or interrupting ratings when paired with compatible rejection-style fuse holders.
The Class CC cartridge features a melamine body, nickel-plated bronze caps and a nominal 10.3 x 38.1 mm format. It is designed for use with appropriately rated Class CC fuse holders and fuse blocks.
We support online purchase of the Littelfuse KLDR-1-1/2 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-1-1/2?
It is a 1.5 A Class CC current-limiting time-delay cartridge fuse from the Littelfuse POWR-GARD KLDR series. The series is designed for compatible control transformers, solenoids and industrial control circuits.
What is the manufacturer's catalog number?
The corresponding Littelfuse catalog number is KLDR01.5. The manufacturer's product marking is KLDR 1 1/2 A.
What is the current rating?
The fuse is rated for 1.5 amperes, equivalent to 1500 milliamperes or one and one-half amperes.
What are its AC and DC voltage ratings?
The manufacturer specifies 600 VAC and 300 VDC. The circuit voltage must remain within the applicable rating.
What are the interrupting ratings?
The AC interrupting rating is 200,000 A RMS symmetrical at 600 VAC. The DC interrupting rating is 20,000 A at 300 VDC and is self-certified by Littelfuse.
Is KLDR-1-1/2 a time-delay or fast-acting fuse?
It is a time-delay fuse intended to accommodate brief inrush currents from control transformers, solenoids and related inductive components.
Does the fuse open in exactly 12 seconds at 200% rated current?
No. Littelfuse lists a UL opening-time requirement of at least 12 seconds at 200% rated current. This is a minimum requirement rather than an exact opening time. Refer to the published time-current curves for application analysis.
What are its pre-arcing and total clearing I²t values?
The manufacturer specifies a pre-arcing I²t of 0.9302 A²s and a total clearing I²t of 5.885 A²s. The total clearing value is stated for the manufacturer's 200 kA test condition.
What are the nominal physical dimensions?
The cartridge measures approximately 10.3 mm in diameter and 38.1 mm in length, corresponding to 0.41 x 1.50 inches.
What materials and fuse holders are used?
The KLDR series uses a melamine body and nickel-plated bronze caps. Littelfuse identifies compatible fuse holder families including L60030C, LPSC/LFPSC, LEC and 571/572. Confirm the holder's applicable electrical rating and physical compatibility.
What certifications and environmental compliance information are available?
The manufacturer identifies the KLDR series as UL Listed, CSA Certified and RoHS compliant, with a CE declaration referenced in the datasheet. The 20 kA DC interrupting rating is manufacturer self-certified rather than part of the listed AC approvals.
What should be confirmed before purchasing KLDR-1-1/2?
Verify the KLDR-1-1/2 or KLDR01.5 designation, 1.5 A current rating, applicable 600 VAC or 300 VDC requirement, interrupting rating, time-delay characteristics, fuse-holder compatibility and the offered quantity. Littelfuse lists KLDR01.5TXP for a manufacturer 10-piece pack and KLDR01.5HXP for a 100-piece pack; these codes do not establish the quantity supplied by a separate retail listing.
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Available in stock (2000)
| Brand | Littelfuse |
| Model Number | KLDR-1-1/2 |
| Manufacturer Catalog Number | KLDR01.5 |
| Product Marking | KLDR 1 1/2 A |
| Product Category | Class CC Time-Delay Fuse |
| Product Series | POWR-GARD KLDR |
| Current Rating | 1.5 A (1500 mA, 1-1/2 A) |
| AC Voltage Rating | 600 VAC |
| DC Voltage Rating | 300 VDC |
| Fuse Class | UL Class CC |
| Operating Characteristic | Time-Delay |
The Littelfuse KLDR-1-1/2 provides a 1.5 ampere current rating for properly specified industrial control and transformer protection circuits. Its 1500 mA rating supports electrical designs requiring Class CC time-delay overcurrent protection.
Designed for compatible AC circuits up to 600 VAC and DC circuits up to 300 VDC. Separate interrupting ratings allow selection based on the circuit's operating voltage and prospective short-circuit current.
The time-delay characteristic accommodates temporary current surges associated with energizing control transformers, solenoids and similar inductive components. Manufacturer documentation specifies a minimum opening time of 12 seconds at 200% of rated current under the applicable UL requirement.
Rated to interrupt 200 kA RMS symmetrical in AC circuits and 20 kA in DC circuits at their respective rated voltages. Littelfuse identifies its DC interrupting rating as manufacturer self-certified.
Current-limiting operation reduces the potential heating and magnetic effects of short-circuit currents. Its rejection feature helps prevent installation of fuses having insufficient voltage or interrupting ratings when paired with compatible rejection-style fuse holders.
The Class CC cartridge features a melamine body, nickel-plated bronze caps and a nominal 10.3 x 38.1 mm format. It is designed for use with appropriately rated Class CC fuse holders and fuse blocks.
We support online purchase of the Littelfuse KLDR-1-1/2 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-1-1/2?
It is a 1.5 A Class CC current-limiting time-delay cartridge fuse from the Littelfuse POWR-GARD KLDR series. The series is designed for compatible control transformers, solenoids and industrial control circuits.
What is the manufacturer's catalog number?
The corresponding Littelfuse catalog number is KLDR01.5. The manufacturer's product marking is KLDR 1 1/2 A.
What is the current rating?
The fuse is rated for 1.5 amperes, equivalent to 1500 milliamperes or one and one-half amperes.
What are its AC and DC voltage ratings?
The manufacturer specifies 600 VAC and 300 VDC. The circuit voltage must remain within the applicable rating.
What are the interrupting ratings?
The AC interrupting rating is 200,000 A RMS symmetrical at 600 VAC. The DC interrupting rating is 20,000 A at 300 VDC and is self-certified by Littelfuse.
Is KLDR-1-1/2 a time-delay or fast-acting fuse?
It is a time-delay fuse intended to accommodate brief inrush currents from control transformers, solenoids and related inductive components.
Does the fuse open in exactly 12 seconds at 200% rated current?
No. Littelfuse lists a UL opening-time requirement of at least 12 seconds at 200% rated current. This is a minimum requirement rather than an exact opening time. Refer to the published time-current curves for application analysis.
What are its pre-arcing and total clearing I²t values?
The manufacturer specifies a pre-arcing I²t of 0.9302 A²s and a total clearing I²t of 5.885 A²s. The total clearing value is stated for the manufacturer's 200 kA test condition.
What are the nominal physical dimensions?
The cartridge measures approximately 10.3 mm in diameter and 38.1 mm in length, corresponding to 0.41 x 1.50 inches.
What materials and fuse holders are used?
The KLDR series uses a melamine body and nickel-plated bronze caps. Littelfuse identifies compatible fuse holder families including L60030C, LPSC/LFPSC, LEC and 571/572. Confirm the holder's applicable electrical rating and physical compatibility.
What certifications and environmental compliance information are available?
The manufacturer identifies the KLDR series as UL Listed, CSA Certified and RoHS compliant, with a CE declaration referenced in the datasheet. The 20 kA DC interrupting rating is manufacturer self-certified rather than part of the listed AC approvals.
What should be confirmed before purchasing KLDR-1-1/2?
Verify the KLDR-1-1/2 or KLDR01.5 designation, 1.5 A current rating, applicable 600 VAC or 300 VDC requirement, interrupting rating, time-delay characteristics, fuse-holder compatibility and the offered quantity. Littelfuse lists KLDR01.5TXP for a manufacturer 10-piece pack and KLDR01.5HXP for a 100-piece pack; these codes do not establish the quantity supplied by a separate retail listing.
