Introducing Fuse Class L 900A A4BQ Series from Mersen, an exceptional solution designed for circuit protection in electrical systems. These time-delay nonindicating UL Class L fuses have the ability to withstand temporary inrush currents without opening or nuisance-blowing. They also disconnect circuits when exposed to sustained loads and short circuits, offering maximum safety against hazardous situations. Additionally, they protect electrical feeders and service equipment from overcurrent while providing current-limiting action that prevents damage caused by excessive power flow. The secure bolt-on mounting ensures proper seating and contacts to maintain a safe connection. Suitable for applications in various industries, the Class L fuse provides reliable protection and performance you can trust.
Top product features:
Current-limiting action to prevent electrical damage
Time-delay, nonindicating UL Class L fuses tolerate temporary inrush currents without opening, which prevents nuisance-blowing from motor and equipment startups. Also called slow-blow Class L 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.
UL Class L fuses protect electrical feeders and service equipment from overcurrent. These 600VAC fuses are not interchangeable with any other UL fuse class. They are current-limiting to prevent electrical damage by disconnecting circuits before they're exposed to the full magnitude and duration of an overcurrent. Class L fuses bolt onto their mountings for a secure hold that resists loosening from vibration and helps ensure proper seating to maintain contact with the circuit.
Technical Specifications
ItemFuse
Amps900 A
AC Voltage Rating600V AC
DC Voltage Rating500V DC
ClassL
SeriesA4BQ
Visual IndicationNonindicating
SpeedTime Delay
Body StyleBlade
Fits Fuse Block StyleNonrejection
Interrupt Rating100kA at 500V DC, 200kA at 600V AC
Fuse Size10-3/4 in L x 2-1/2 in dia
Length10 3/4 in
Diameter2 1/2 in
Equivalent Brand and SeriesBussmann KRP-C, Littelfuse KLPC, Mersen A4BQ
Equivalent SeriesA4BQ, KLPC, KRP-C
Body MaterialMelamine
ElementDual
StandardsCSA, UL
Manufacturer Details
Manufacturer: Mersen
Condensed Mfg Number: A4BQ900
MPN: A4BQ900
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: Class L Fuses
GDS Family Name: Fuses
GDS Segment Name: Electrical
UNSPSC: 39121604
UNSPSC Class ID: 16
UNSPSC Commodity Name: Circuit protection devices and accessories
UNSPSC Commodity ID: 04
UNSPSC Commodity Name: Time delay 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
Welcome to the nation's largest veteran-owned online store. We offer 4+ million products with 100% fast, free shipping across the following solution groups:
We serve a diverse customer base, including government buyers, small to medium-sized businesses, government contractors, healthcare enterprises, academic institutions, veterans, military personnel, first-responders and DIY heroes.
As a socially responsible business, we dedicate a portion of each sale to support veteran non-profit causes of national significance. Since our establishment in January 2013, GoVets has achieved an A+ Rating on BBB, thousands of 5-star reviews and recognized as one of the fastest-growing private businesses in the United States. We proudly hold various diversity certifications, including SBA Certified SDVOSB, New York State SDVOB, Florida VBE, and Disability:IN SDV-DOBE.
