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Mersen

Mersen A4BY700 700A 600V Class L Time-Delay Fuse

Part Number: A4BY700

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A4BY700 extends the Mersen A4BY Series lineup with a 700A rating. For selection, note the 600V AC / 300V DC rating and 200kA AC / 100kA DC 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 Current700A
Rated Voltage600V AC / 300V DC
Breaking Capacity200kA AC / 100kA DC
PackageClass L

At 700A, A4BY700 is one of the rated options available in Mersen’s A4BY Series. For coordination, the key ratings are 600V AC / 300V DC and 200kA AC / 100kA DC 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 Switchboards, Mains, Feeders. Check the official Mersen datasheet before final equipment coordination.

Technical Specifications

Part Number
A4BY700
Manufacturer Part Number
A4BY700
Series
A4BY Series
Fuse Type
Current-Limiting Time-Delay Class L Fuse
Current Rating
700A
Voltage Rating
600V AC / 300V DC
AC / DC
AC/DC
Breaking Capacity
200kA AC / 100kA DC
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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