Description

The LDC1000NHRR is an electronic component model that belongs to the ADCs/DACs product category. It is a Class L fuse designed and manufactured by Littelfuse under the POWR-PRO® series. The LDC1000NHRR fuse is the first UL listed 600 volts AC and DC class L fuse. Therefore, it can be used for both AC and DC circuits, and the risk of inserting AC-only fuses into DC circuits is eliminated.

Specifications and features

• 600 Volt AC/DC rated - the fuse is an all-purpose Class L fuse that reduces inventory requirements
• UL Listed 200,000 A.I.R. AC - 50,000 A.I.R. DC - the fuse has reliable interruption of overcurrents up to their rating. This minimizes the need for time-consuming and expensive short-circuit studies.
• Moderate time delay - the fuse has four seconds time delay at 500% current providing adequate time-delay for many AC applications and most DC applications. They will withstand most harmless overloads or line surges.
• Selective coordination - The LDC series fuses coordinate well with all Littelfuse fuses rated 600 amperes or less.
• Extremely current limiting - the fuse has a maximum current limitation that reduces damage to circuits and equipment under short circuit conditions. Stops damaging short circuits faster than any mechanical protective device.

Application Scenarios

The LDC1000NHRR fuse can be used in various applications, including but not limited to:

• 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, ship and dock cranes, etc.
• Mass transit systems, including new light rail applications
• General-purpose AC/DC circuits for mains, feeders, and branch circuits

Comparison

• The fuse is the first UL Listed 600 volts AC and DC Class L fuse, and it can be used for both AC and DC circuits
• Reliable interruption of all overcurrents up to the rating
• Maximum current limitation reduces damage to circuits and equipment under short circuit conditions.

• The LDC1000NHRR fuse has a moderate time delay of four seconds at 500% current, which may not be suitable for all applications.
• In situations where the needs exceed the LDC capabilities, KLPC fuses are recommended for use in AC applications.