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Mersen

Mersen A2K50R 50A Class RK1 Fast-Acting Fuse

Part Number: A2K50R

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Confirm circuit requirements for Mersen A2K50R, a 50A class rk1 fast-acting fuse rated 250 VAC / 250 VDC, with the published voltage duty and series protection profile for OEM sourcing.

Rated Current50A
Rated Voltage250 VAC / 250 VDC
Breaking Capacity200 kA AC / 100 kA DC

Mersen A2K50R is a 50A class rk1 fast-acting fuse in the A2K-R family, rated 250 VAC / 250 VDC. Its ferrule configuration supports power distribution, lighting, feeder circuits. Specified for repeatable protection performance, its series-specific speed and construction support accurate replacement and new-design selection. Match the mounting style and current rating to the equipment manufacturer’s requirements. FuseStock lists the manufacturer reference for sourcing and technical comparison.

Technical Specifications

Part Number
A2K50R
Manufacturer Part Number
A2K50R
Series
A2K-R Series
Fuse Type
Current-Limiting Fuse
Current Rating
50A
Voltage Rating
250 VAC / 250 VDC
AC / DC
AC/DC
Breaking Capacity
200 kA AC / 100 kA DC
Mounting
Cartridge / Clip
Application
Feeder circuits · Lighting · Power distribution
Standard
CSA C22.2 · UL 248
Terminal Type
Ferrule
Fuse Speed
Fast Acting (F)
Utilization Class
Class RK1
Approvals
CSA · UL Listed
Certifications
UL Listed|CSA Certified

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