Littelfuse LGR Series Small-Dimension Fast-Acting Fuse, 300VAC

Littelfuse LGR Series Small-Dimension Fast-Acting Fuse, 300VAC

The Littelfuse LGR Series is a line of fast-acting fuses rated 300VAC, engineered to deliver dependable overcurrent protection in electrical and electronic circuits. Available in ampere ratings from 1A to 10A, the LGR Series combines a small-dimension footprint with a high 10000A@300VAC interrupting rating, giving it the fault-clearing capacity needed for demanding power distribution and control applications. Backed by Littelfuse engineering and UL recognition, the LGR Series is designed to deliver a fast, predictable response to overcurrent conditions, helping protect wiring, components, and connected equipment in professional and industrial installations that require code-compliant circuit protection.

Key Features

• Ampere Rating Range: Available from 1A to 10A, the LGR Series lets you match fuse selection to the circuit's current-carrying requirements, helping prevent nuisance operation while still responding to genuine overcurrent conditions.
• Fast-Acting Opening: The Fast-Acting (F) opening characteristic allows LGR Series fuses to respond quickly to overcurrent fault conditions, helping limit potential damage to connected equipment and wiring.
• High Interrupting Rating: A 10000A@300VAC interrupting rating gives every fuse in the series the capacity to safely clear higher-energy fault currents without compromising circuit integrity.
• Voltage Rating: Rated for use on 300VAC systems, the LGR Series is suited to standard AC electrical and electronic circuit designs that call for this class of protection.
• LGR Series Construction: Engineered as part of Littelfuse's LGR Series small-dimension fuse line, built for consistent, repeatable performance across production runs.
• Compact, Small-Dimension Format: The small-dimension body allows LGR Series fuses to fit standard fuse holders and panel layouts commonly used for this fuse class.

Certifications & Compliance

• UL Recognized Component, File No. E10480

Technical Specifications

• Series: LGR
• Ampere Rating Range: 1A - 10A
• Voltage Rating: 300VAC
• Interrupting Rating: 10000A@300VAC

Typical Applications

• Overcurrent and Short-Circuit Protection
• Industrial and Commercial Electrical Equipment
• Control Panels and Electronic Assemblies
• General-Purpose Circuit Protection
• Panel and Equipment-Level Fault Protection
• OEM and Electrical Distribution Assemblies

Why Littelfuse?

Littelfuse is a recognized name in circuit protection, and the LGR Series reflects that standard with a UL-recognized fast-acting design rated for 300VAC and backed by a 10000A@300VAC interrupting rating across every ampere rating in the line. For electricians, panel builders, and OEMs who need reliable, code-compliant overcurrent protection, the Littelfuse LGR Series delivers consistent, repeatable performance backed by established fuse manufacturing and testing standards, making it a dependable choice for both replacement and new-build applications.