JLLN110 - 110Amp Fuse

JLLN110 - 110Amp Fuse

When you need dependable, fast‑response over‑current protection in space‑limited industrial panels, the JLLN110 Class T 110 Amp fuse from Littelfuse is a top choice. This high‑performance fuse supports up to 300 VAC and 125 VDC, making it well suited for modern drives, UPS units, power distribution modules and other critical applications where equipment protection and uptime matter. The knife‑blade/bolt‑in design allows quick, secure installation while the current‑limiting characteristic cuts short‑circuit energy, which helps reduce damage to downstream equipment and limits downtime. Whether you’re working in a compact control cabinet, a sub‑metering service panel or an industrial VFD module, the JLLN110 brings professional‑grade performance in a compact footprint.

Key Features and Benefits

• Compact, space‑saving footprint: The Class T design is significantly smaller (less than one‑third the size of comparable Class R fuses), which means you can pack more protective devices into a given panel space.
• Knife‑blade/bolt‑in installation: Mounts securely in fuse blocks or holders designed for heavy‑duty service, offering fast, reliable installation and maintenance.
• Fast‑acting, current‑limiting protection: The fast‑acting element interrupts over‑currents quickly and limits let‑through energy, helping to protect downstream electronics from thermal and mechanical stress.
• High interrupting rating: With ratings up to 200 kA at 300 VAC and 20 kA at 125 VDC, this fuse handles significant fault currents safely.
• Versatile voltage compatibility: Designed for 300 VAC or 125 VDC systems, giving you flexibility for both AC and DC applications.
• Trusted brand and proven design: Built by Littelfuse, a market‑leader in industrial fuses and protection devices.

Technical Specifications

• Ampere Rating: 110 A continuous
• Voltage Rating: 300 VAC / 125 VDC
• Interrupting Rating: 200,000 A @ 300 VAC; 20,000 A @ 125 VDC
• Opening Speed: Fast‑Acting (Class T)
• Mounting Style: Knife‑Blade / Bolt‑In fuse block or holder
• Fuse Class: UL Class T
• Body Construction: Melamine or equivalent durable material, with service‑capable end caps

Material Compliance and Certifications

• UL Listed to UL 248‑15 for Class T fuses: Recognized safety standard for industrial over‑current protection.
• CSA Certified: Meeting Canadian electrical safety standards.
• CE marked and RoHS compliant: Manufactured without certain hazardous substances, suitable for a wide range of regional installations.

Where It Works Best

• Industrial motor control & VFD protection – The compact Class T design pairs neatly with drives, controllers and motor modules where space is tight and fast interruption matters.
• Power distribution and critical service panels – Ideal for UPS systems, inverters or power conversion units where fault protection and system integrity are key.
• Commercial metering and sub‑metering – The secure mounting and high interrupt rating make it a fit for main switchgear, service entrance enclosures and meter stacks.
• Non‑inductive, surge‑sensitive electronics – If you have equipment that’s vulnerable to fault surge or short‑circuit energy, this fast‑acting fuse adds a layer of protection.