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PTST4505X20 - 450mA 5x20mm Replacement Fuse for Control Systems

Packaging: 1 Per Ea
$62,534.40/EA $39,084.00/1 Per Ea only $39,084.00/EASave 37%

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OVERVIEW

Get Your Machine Back Online with the Right Fuse

Is your welder's display dark or is the programming system not responding? You might just have a blown fuse. The PTST4505X20 is a 450mA 5x20mm Fuse specifically used in the control and programming systems of various welding machines. Small fuses like this protect the computer brains of your equipment. If a spike in current hits, this fuse sacrifices itself to save your expensive circuit boards.

Don't risk your equipment by bypassing fuses or using the wrong size. This unit is rated for 450 milliamps and features the common 5mm x 20mm size found in many fuse blocks and panel holders. It is a quick and inexpensive fix that can save you thousands in repair costs. Keep a few of these in your maintenance kit so you aren't left waiting on a tiny part while production stands still.

Whether you are working on a MIG runner, a TIG inverter, or a plasma cutter's logic board, checking and replacing the control fuses is step one in troubleshooting. This high-quality replacement fuse ensures your machine operates safely and within its electrical specifications. Swap out that burnt fuse and get back to welding.

Product Features

  • Exact 450mA rating for logic board protection
  • Standard 5x20mm size fits many holders
  • Essential spare for troubleshooting control errors
  • Prevents damage to expensive programming systems
Additional Information
Packaging Description:1 Per Ea
Item:Fuse
Component Type:Cartridge Fuse
Amperage Rating:450mA
Dimensions:5mm x 20mm
Application:Control Boards, Programming Systems, Electronic Circuits

INCLUDED

  • 1 x 450mA 5x20mm Fuse

APPLICATIONS

  • Welding machine control boards
  • Industrial programming systems
  • Low-voltage electronic circuits
  • PCB protection
  • Inverter power source logic

FAQ

This fuse measures 5mm in diameter and 20mm in length, which is a standard size for electronic cartridge fuses.

The fuse is rated for 450mA (0.45 Amps).

It is not recommended. Using a fuse with a higher amperage rating can allow dangerous currents to pass through, potentially destroying the sensitive control board it is meant to protect.

You can often see a broken wire inside the glass tube, or you can test it for continuity using a multimeter. If there is no continuity (infinite resistance), the fuse is blown.

It is typically used in the "Program Sys" or control systems of welding machines, wire feeders, and other industrial electronics.

While not explicitly specified in the SKU, fuses for control boards are often time-delay to handle inrush current, but please check your machine's manual or the markings on the old fuse (e.g., 'T' for time-delay, 'F' for fast) to be sure.

These are usually found on the main printed circuit board (PCB) inside the machine or in a panel-mount fuse holder on the control interface.

This item is typically sold individually (1 per each), but check the packaging quantity options if you need to stock up.