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Mersen

Mersen A4BY5000 5000A 600V Class L Time-Delay Fuse

Part Number: A4BY5000

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For 5000A circuit protection, A4BY5000 is a catalog member of Mersen’s A4BY Series. For selection, note the 600V AC rating and 200kA AC interrupting data. Its selection value is strongest where the circuit needs 4-second minimum time delay at 500% rating for service and feeder protection.

Rated Current5000A
Rated Voltage600V AC
Breaking Capacity200kA AC
PackageClass L

Part A4BY5000 belongs to the Mersen A4BY Series and is rated 5000A. For coordination, the key ratings are 600V AC and 200kA AC interrupting performance. The design focuses on 4-second minimum time delay at 500% rating for service and feeder protection. The Class L format uses blade terminals with cartridge/clip mounting. Typical selection contexts include Load Centers, Panelboards, Switchboards. Check the official Mersen datasheet before final equipment coordination.

Technical Specifications

Part Number
A4BY5000
Manufacturer Part Number
A4BY5000
Series
A4BY Series
Fuse Type
Current-Limiting Time-Delay Class L Fuse
Current Rating
5000A
Voltage Rating
600V AC
AC / DC
AC
Breaking Capacity
200kA AC
Package / Dimensions
Class L
Mounting
Cartridge / Clip
Application
Circuit Breaker Protection · Feeder circuits · Panelboards · Residential load centers · Switchboard Mains
Standard
CSA C22.2 No. 248.10 · UL 248-10
Terminal Type
Blade
Fuse Speed
Time Delay
Utilization Class
Class L
Approvals
CSA · UL Listed
Certifications
UL Listed · CSA

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