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Mersen

Mersen A25X400-4 400A 250–300VAC high-speed semiconductor fuse

Part Number: A25X400-4

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Mersen A25X400-4 is configured as a 250–300VAC high-speed semiconductor fuse, carrying 400A with a 250–300VAC system rating, intended for heavy-duty rectifiers and semiconductor converters and built around bolted blade mounting.

Rated Current400A
Rated Voltage250–300VAC
Breaking CapacityHigh interrupting; see model datasheet
PackageForm 101 (4)

For heavy-duty rectifiers and semiconductor converters, Mersen A25X400-4 provides a 250–300VAC high-speed semiconductor fuse within the A25X family. 400A and 250–300VAC define the primary electrical envelope, while low-I²t current-limiting semiconductor protection and bolted blade describe protection and fit. For replacement or new builds, compare the mounting details with the linked manufacturer documentation.

Technical Specifications

Part Number
A25X400-4
Series
A25X
Fuse Type
High-Speed Semiconductor Fuse
Current Rating
400A
Voltage Rating
250–300VAC
AC / DC
AC
Breaking Capacity
High interrupting; see model datasheet
Package / Dimensions
Form 101 (4)
Mounting
Bolted Blade
Application
Drives · Semiconductor protection · UPS
Standard
UL Recognition
Terminal Type
Blade / Bolt
Fuse Speed
High Speed
Approvals
RoHS · UL Recognized
Certifications
UL Recognized|RoHS

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