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Mersen

Mersen A25X800-128 800A 250–300VAC high-speed semiconductor fuse

Part Number: A25X800-128

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A25X800-128 is a Mersen 250–300VAC high-speed semiconductor fuse, specified at 800A across a 250–300VAC rating, intended for heavy-duty rectifiers and semiconductor converters and built around cartridge / clip mounting.

Rated Current800A
Rated Voltage250–300VAC
Breaking CapacityHigh interrupting; see model datasheet
PackageForm 101 (1)

A25X800-128 is specified as a Mersen 250–300VAC high-speed semiconductor fuse for heavy-duty rectifiers and semiconductor converters. The configuration combines a 800A current rating, 250–300VAC, cartridge / clip mounting, and low-I²t current-limiting semiconductor protection. For replacement or new builds, compare the mounting details with the linked manufacturer documentation.

Technical Specifications

Part Number
A25X800-128
Series
A25X
Fuse Type
High-Speed Semiconductor Fuse
Current Rating
800A
Voltage Rating
250–300VAC
AC / DC
AC
Breaking Capacity
High interrupting; see model datasheet
Package / Dimensions
Form 101 (1)
Mounting
Cartridge / Clip
Application
Drives · Semiconductor protection · UPS
Standard
UL Recognition
Terminal Type
Ferrule
Fuse Speed
High Speed
Approvals
RoHS · UL Recognized
Certifications
UL Recognized|RoHS

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