Fuse Midget 20A FNM Series MPN:FNM-20

Time-delay, nonindicating midget fuses tolerate temporary inrush currents without opening, which prevents nuisance-blowing from motor and equipment startups. Also called slow-blow midget fuses, they open to disconnect an electrical circuit when exposed to sustained loads and short circuits. They have no indicator for identifying a blown fuse, so they're sometimes used with an indicating fuse block or cover.

Midget fuses supplement the primary branch-circuit fuse or breaker to provide backup overcurrent protection for lighting, solenoid, motor, and transformer circuits. Also known as 5AG fuses, they have lower interrupting ratings than branch-circuit protectors. They are noncurrent-limiting, so they won't limit exposure to the full magnitude and duration of an overcurrent.

Technical Specifications

• Item Fuse
• Amps 20 A
• AC Voltage Rating 250V AC
• DC Voltage Rating Not Rated
• Class Midget
• Series FNM
• Visual Indication Nonindicating
• Speed Time Delay
• Body Style Cylindrical
• Fits Fuse Block Style Nonrejection
• Interrupt Rating 10kA at 250V AC
• Fuse Size 1-1/2 in L x 13/32 in dia
• Length 1 1/2 in
• Diameter 13/32 in
• Equivalent Brand and Series Bussmann FNM, Littelfuse FLM, Mersen TRM
• Equivalent Series FLM, FNM, TRM
• Compatible Fuse Block Series BM, BMM, C2617, C5268, CHM, HEB, HEX, HPG, HPS, OPM-1038, OPM-NG
• Body Material Fiberglass
• Element Dual
• Standards CE, CSA Class 1422-01, UL-248-14 Guide JDYX

Manufacturer Details

• Manufacturer: Bussmann
• Condensed Mfg Number: FNM20
• MPN: FNM-20

Label Details

• Hazardous Material: N
• Green Material Flag: N
• Country of Origin: MX
• CA Prop 65 Wht Label: N

Classification Details

• Harmonization Code: 8536100040
• GDS Category Name: Midget Fuses
• GDS Family Name: Fuses
• GDS Segment Name: Electrical
• UNSPSC: 39121609
• UNSPSC Class ID: 16
• UNSPSC Commodity Name: Circuit protection devices and accessories
• UNSPSC Commodity ID: 09
• UNSPSC Commodity Name: Midget fuses
• UNSPSC Family ID: 12
• UNSPSC Family Name: Electrical equipment and components and supplies
• UNSPSC Segment ID: 39
• UNSPSC Segment Name: Electrical Systems and Lighting and Components and Accessories and Supplies

Shipping Details

• Not For Sale In: HI AK PR