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Transparent cylindrical glass-fibre fuse, 5-5/8 in long, 13/16 in diameter

Mersen

Mersen A480T1/2E 4.8 kV 1/2A Time-Delay Cylindrical Fuse

SKU CH-4C17-R23X2

A 4.8 kV cylindrical fuse rated at 1/2 A with a 50 kA interrupt rating at 4800 V AC

  • TypeFuses & Accessories
  • ColorTransparent
  • Time-delay operation prevents nuisance tripping on inrush currents
  • 8 kV AC rating suits medium-voltage circuits
  • 50 kA interrupting capacity clears heavy faults safely
  • Cylindrical glass-fibre melamine body fits standard holders
  • Class E-rated, non-rejection design matches Bussmann AMWNA equivalents

Medium-Voltage Fuse for 4.8 kV Systems

The Mersen A480T1/2E is a Class E-rated, time-delay fuse rated at 1/2 A and 4.8 kV AC. It provides overcurrent protection for medium-voltage circuits in industrial and utility equipment. The cylindrical, non-indicating body is built from glass fibre-reinforced melamine for reliable insulation.

Simple Cylindrical Installation

The fuse fits standard 13/16 in diameter clips and measures 5-5/8 in long, allowing tool-free replacement in compatible holders. Its 50 kA symmetrical interrupt rating at 4800 V AC clears heavy fault currents safely. The non-rejection design means it will fit holders that accept the A480T or Bussmann AMWNA series, so verify the holder type before fitting.

Verify Voltage, Current and Holder Compatibility

Confirm the circuit operates at or below 4.8 kV AC and that the load current suits a 1/2 A time-delay element. Ensure the existing fuse holder accepts a 13/16 in diameter by 5-5/8 in long cylindrical body and does not require a rejection feature. This fuse is not for low-voltage or semiconductor protection applications.

Highlights

  • Time-delay operation prevents nuisance tripping on inrush currents
  • 8 kV AC rating suits medium-voltage circuits
  • 50 kA interrupting capacity clears heavy faults safely
  • Cylindrical glass-fibre melamine body fits standard holders
  • Class E-rated, non-rejection design matches Bussmann AMWNA equivalents

Specifications

BrandMERSEN
TypeFuses & Accessories
ColorTransparent

Questions about this item

How can I verify the fuse is intact after installation?

The fuse is non-indicating, so use a multimeter to check for continuity across the end caps.

What comes in the box and what must be purchased separately?

The fuse itself is supplied; compatible fuse holders or clips for the 13/16 in diameter cylindrical body are sold separately.

Which A480T series rating should I select for my circuit?

Choose the 1/2 A, 4.8 kV AC, Class E-Rated time-delay version when the circuit requires that specific current and voltage rating.

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