Mersen

Mersen A4BY200 200A 600V Class L Time-Delay Fuse

Name: Mersen A4BY200 200A 600V Class L Time-Delay Fuse
Brand: Mersen
SKU: A4BY200

Part Number: A4BY200

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For 200A circuit protection, A4BY200 is a catalog member of Mersen’s A4BY Series. Its key ratings are 600V AC / 300V DC and 200kA AC / 100kA DC interrupting capability. Its selection value is strongest where the circuit needs 4-second minimum time delay at 500% rating for service and feeder protection.

Rated Current200A

Rated Voltage600V AC / 300V DC

Breaking Capacity200kA AC / 100kA DC

PackageClass L

Tags

A4BY Series A4BY200 class l Mersen time-delay

Part A4BY200 belongs to the Mersen A4BY Series and is rated 200A. Electrical limits are 600V AC / 300V DC, with 200kA AC / 100kA DC interrupting capability. 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 Panelboards, Switchboards, Mains. Check the official Mersen datasheet before final equipment coordination.

Technical Specifications

Part Number: A4BY200
Manufacturer Part Number: A4BY200
Series: A4BY Series
Fuse Type: Current-Limiting Time-Delay Class L Fuse
Current Rating: 200A
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