Semiconductor Fuse 40A FWH 500VAC MPN:FWH-40A

Fast-acting, nonindicating semiconductor fuses open within seconds of being exposed to overloads and short circuits. Also called fast-blow semiconductor fuses, they are highly sensitive to changes in current flow and don't tolerate temporary overload currents or power surges. They have no indicator for identifying a blown fuse, so they're sometimes used with an indicating fuse block or cover.

Semiconductor fuses provide overcurrent protection for solid-state components such diodes and thyristors in variable-speed drives, power rectifiers, uninterruptible power supplies (UPSs), and other power electronics applications. Also known as rectifier fuses, they are extremely current-limiting to prevent electrical damage by disconnecting circuits before they're exposed to the full magnitude and duration of an overcurrent.

Technical Specifications

• Item Semiconductor Fuse
• Amps 40 A
• AC Voltage Rating 500V AC
• DC Voltage Rating 500V DC
• Series FWH-A
• Visual Indication Nonindicating
• Speed Fast Acting
• Body Style Bolt-On
• Fits Fuse Block Style Nonrejection
• Interrupt Rating 200kA at 500V AC, 50kA at 500V DC
• Fuse Size 3-3/16 in L x 13/16 in dia
• Length 3 3/16 in
• Width Not Applicable
• Depth Not Applicable
• Diameter 13/16 in
• Equivalent Brand and Series A50QS, Bussmann FWH, Littelfuse L50S, Mersen A50P
• Equivalent Series A50P, A50QS, FWH, L50S
• Compatible Fuse Block Series 1BS
• Body Material Fiberglass
• Element Single
• Standards CE, CSA Certified, UL Recognized

Manufacturer Details

• Manufacturer: Bussmann
• Condensed Mfg Number: FWH40A
• MPN: FWH-40A

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: High Speed Semiconductor Fuses
• GDS Family Name: Fuses
• GDS Segment Name: Electrical
• UNSPSC: 39121612
• UNSPSC Class ID: 16
• UNSPSC Commodity Name: Circuit protection devices and accessories
• UNSPSC Commodity ID: 12
• UNSPSC Commodity Name: Blade 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