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Mersen

Mersen A60X125-4K 125A 600VAC aR High-Speed Fuse

Part Number: A60X125-4K

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Mersen A60X125-4K is built around a 125A aR high-speed semiconductor fuse design covering 600V AC service with 200kA AC interrupt capacity for rectifier, traction and heavy-duty power-electronics protection, with Type 4K bolted-blade construction.

Rated Current125A
Rated Voltage600V AC
Breaking Capacity200kA AC
PackageForm 101 Type 4K

As part of the Mersen A60X range, A60X125-4K is configured as a 125A aR high-speed semiconductor fuse. The device is specified for 600V AC circuits and 200kA AC fault clearing. Installation uses Type 4K bolted-blade construction, while the series documentation cites UL JFHR2 for compliance and selection.

Technical Specifications

Part Number
A60X125-4K
Manufacturer Part Number
A60X125-4K
Series
A60X Series
Fuse Type
High-Speed Semiconductor Fuse
Current Rating
125A
Voltage Rating
600V AC
AC / DC
AC
Breaking Capacity
200kA AC
Package / Dimensions
Form 101 Type 4K
Mounting
Bolt-Down
Application
Power Electronics · Railway
Standard
UL Recognized JFHR2
Terminal Type
Bolted Blade
Fuse Speed
High Speed
Utilization Class
aR
Approvals
RoHS · UL Recognized
Certifications
UL Recognized · RoHS

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