Littelfuse FLM Series Time-Delay Fuse, 250VAC Midget/5AG

Littelfuse FLM Series Time-Delay Fuse, 250VAC Midget/5AG

The Littelfuse FLM Series is a family of 250VAC time-delay (Slo-Blo) fuses, available in FLM.500, FLM.600, and FLM.800 current ratings, engineered to protect control circuit transformers, solenoids, and other circuits with high inrush currents. Every FLM Series fuse is rated 250VAC and 125VDC with a 10000A@250VAC interrupting rating, pairing a slow-blow opening characteristic with dependable overcurrent protection in a compact Midget/5AG package. UL recognized, the FLM Series is excellent for supplemental protection of small motors in commercial and industrial control panels.

Key Features

• Time-Delay Opening: Slo-Blo/Time Lag (T)/Time Delay construction rides through momentary inrush current without nuisance opening.
• Dual Voltage Rating: Rated 250VAC and 125VDC for use across both AC and DC control circuits.
• High Interrupting Rating: 10000A@250VAC interrupting rating supports safe fault clearing in demanding control-circuit applications.
• Compact Midget/5AG Package: Standard Midget/5AG fuse size fits common fuse holders and blocks used in control panels.
• Multiple Current Ratings: The FLM Series is available in FLM.500, FLM.600, and FLM.800 versions to match circuit current requirements.
• Supplemental Motor Protection: Excellent for supplemental protection of small motors; for motor branch-circuit protection see Class CC fuses.
• Transformer & Solenoid Protection: Purpose-built to protect control circuit transformers, solenoids, and other high-inrush loads.

Certifications & Compliance

• UL Recognized (File E10480)

Technical Specifications

• Series: FLM
• Voltage Rating: 250VAC/125VDC
• Configuration: Slo-Blo Time-Delay
• Opening: Slo-Blo/Time Lag (T)/Time Delay
• Interrupting Rating: 10000A@250VAC
• Package Size: Midget/5AG
• Available Models: FLM.500, FLM.600, FLM.800

Typical Applications

• Control Circuit Transformer Protection
• Solenoid and Coil Circuit Protection
• Supplemental Protection for Small Motors
• Commercial and Industrial Control Panels
• High Inrush Current Circuits

Why Littelfuse?

Littelfuse is a recognized name in circuit protection, and the FLM Series time-delay fuses reflect that engineering discipline with UL recognized construction and a 10000A@250VAC interrupting rating for dependable performance across the FLM.500, FLM.600, and FLM.800 ratings. Specifying the Littelfuse FLM Series for control circuit and supplemental motor protection helps ensure reliable, code-compliant overcurrent protection in professional electrical installations.