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Showing Results For: Cartridge Fuses

Cartridge Fuses

Cartridge fuses are safety devices designed to prevent overloads and short circuits by interrupting the power supply of higher voltages. They are supplied with dual contact points, one on each side. They are usually cylindrical and general-purpose and popular fuse types. A cartridge fuse comprises built-in resistors that trigger overload protection tasks. Furthermore, they are the most inexpensive, high-speed, and easy-to-replace fuses due to their cylindrical design. In addition, they come in various sizes and ratings with excellent compatibility features.

Why Use Cartridge Fuses?

A cartridge is a must-have safety device that offer various benefits, such as:

  • These fuses provide a considerably cheaper and more handy way to protect electrical devices from overloads and short circuits, preventing damage. 
  • Furthermore, it is worth using due to its incredibly safe nature, as they do not produce arcs, flames, or gas during burnout or break the circuit. 

How Do They Work?

These fuses are comprised of thin wires called resistors that melt during excessive current flow in the circuit. When the wire melts, it breaks the circuits and prevents the current flow. This phenomenon is referred to as "blowing out." It is relatively simple to replace the fuse to complete the circuit and restore the power supply. 

Materials and Current Ratings of Cartridge Fuses: 

Cartridge fuses are made from durable materials, like ceramic, glass, or porcelain with internal resistor wires constructed from silver, copper, zinc, or aluminium. 

When selecting fuses for your required application, it is crucial to consider the standard amperages available. It would be best to select a fuse with relatively higher ratings than the device it is used to protect. This will prevent the device from blowing even if a slight increase in power occurs. 

Types of Cartridge Fuses:

Basically, there are two types of cartridge fuses.

  • Ferrule-type fuses:

These fuses feature a cylindrical metallic cap on either end that resembles the fuses integrated into the plug ends of holiday lights. 

  • The knife-blade type fuse:

They have a similar shape to the ferrule type but consist of a flat metallic blade on each side. They are ideal for protecting circuits over 60 amps up to 600 amps.

Fuse Markings and Speed Codes:

Fuse markings and speed codes given on cartridge fuses are crucial when choosing the right fuse in terms of speed and protection of electrical equipment. The following are some of the familiar markings:

  • H = High Breaking Capacity
  • L = Low Breaking Capacity
  • FF = Very Fast Acting (Flink Flink)
  • TT = Very Slow Acting (Trage Trage)
  • F = Fast Acting (Flink)
  • T = Slow Acting (Trage)
  • M = Medium Acting (Mitteltrage)

What Are the Typical Applications of Cartridge Fuses?

The bespoke fuses are ideal for high-voltage circuits such as dryers and electric ranges. They are also widely employed to protect electrical devices where high voltage ratings and currents are needed, like:

  • Motors
  • Air-Conditions
  • Refrigerators
  • Pumps 
  • Industries
  • Commercial, and 
  • Home Distribution Panels.

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7010.9962.63, Schurter
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015163, Legrand
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New Items
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0034.3127.TR, Schurter

0034.3127.TR, Schurter

Schurter FST Time-Lag T Fuses Schurter FST fuses are a dependable primary protection device for use in a wide range of applications. The glass body allows for quick identification of incidents and thus allows for quick and easy replacements. Schurter time-lag fuses are useful when looking to avoid nuisance tripping. IEC Standard fuse. Low breaking capacity. Fuses, Anti Surge - Glass Bodied
New items
0034.3129.PT, Schurter

0034.3129.PT, Schurter

Schurter FST Time-Lag T Fuses Schurter FST fuses are a dependable primary protection device for use in a wide range of applications. The glass body allows for quick identification of incidents and thus allows for quick and easy replacements. Schurter time-lag fuses are useful when looking to avoid nuisance tripping. IEC Standard fuse. Low breaking capacity.
New items
16C14X51GI, Altech

16C14X51GI, Altech

Altech - Slow Blow Cylinder Fuses The Altech range of slow blow cylinder fuses have been designed for use in industrial applications to protect electrical devices such as motors and drives. The porcelain and glass bodied fuses have been designed with metal caps at both ends and are available in four different sizes. The series has a current range from 1 to 100 Amps. Current range from 1 to 100 Amps Available in 4 different sizes Fuses have a porcelain or glass body with metal caps at either end Altech - Fuses
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F03B250V1-8A, Cooper Bussmann

F03B250V1-8A, Cooper Bussmann

Military Standard 6.35 x 35mm - F03B Series Military standard fast acting fuses with high breaking capacity suitable for a broad range of application requirements offering continually reliable performance as well as cost-effective circuit protection. Available with silver plated fuse caps Various current ratings available
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GDL3, Mersen

GDL3, Mersen

The Mersen type Time Delay NH fuse-links are full range breaking capacity fuse-links and are used to protect cables and equipment. They can interrupt any current surge, from The lowest fusing current up to their breaking capacity, and so can be used alone as protection. They also protect electrical devices and industrial set-ups from The electrodynamic effects of very high short-circuit currents. Double indicator Lead free contact blades Fuse Speed - Time Delay
New items
GDL8, Mersen

GDL8, Mersen

The Mersen type Time Delay NH fuse-links are full range breaking capacity fuse-links and are used to protect cables and equipment. They can interrupt any current surge, from The lowest fusing current up to their breaking capacity, and so can be used alone as protection. They also protect electrical devices and industrial set-ups from The electrodynamic effects of very high short-circuit currents. Double indicator Lead free contact blades Fuse Speed - Time Delay
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0034.5719.11, Schurter

0034.5719.11, Schurter

Schurter SMD-FTT Series Schurter SMD-FTT series surface mount glass fuse are directly solder able on printed circuit boards. The SMD-FTT series has gold-plated copper alloy terminals that offer a highly reliable connection for primary protection on SMD PCB’s. Low breaking capacity Surface mount Surface Mount Fuse
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KTN-R-10, Cooper Bussmann

KTN-R-10, Cooper Bussmann

Midget Fuse & Accessories Professional range of Bussmann midget fuses and accessories that are 600V rated and available with different current ratings. Fast blow Mounting Style - Holder Termination Style - Clip Body Material - Melamine or Fibre available Typical Applications: DC control circuits that require fast acting protection. PV systems. Midget Fuse
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FNQ-3-1-2, Cooper Bussmann

FNQ-3-1-2, Cooper Bussmann

Midget Fuse & Accessories Professional range of Bussmann midget fuses and accessories that are 600V rated and available with different current ratings. Fast blow Mounting Style - Holder Termination Style - Clip Body Material - Melamine or Fibre available Typical Applications: DC control circuits that require fast acting protection. PV systems. Midget Fuse
New items
FRS-R-6, Cooper Bussmann

FRS-R-6, Cooper Bussmann

Cooper Bussmann FRS-R Series Professional range of Cooper Bussmann time delay fuses from the FRS-R series. The fuses are designed to provide motor overload, ground fault and short-circuit protection Mounting Style - Holder Termination Style - Clip Various current ratings available
New items
0034.1526.PT, Schurter

0034.1526.PT, Schurter

Schurter Quick Acting F 5x20mm The Schurter range of Quick acting F Glass cartridge fuses. Perfect for various applications. All models are highly reliable and extremely good quality. 5 x 20mm Low breaking capacity Glass tube Nickel-plated copper alloy end caps
New items
FRS-R-75, Cooper Bussmann

FRS-R-75, Cooper Bussmann

Cooper Bussmann FRS-R Series Professional range of Cooper Bussmann current limiting dual element time delay fuses from the FRS-R series. The fuses are generally used in circuits that are subject to surge currents.
FAQs
We offer free shipping for orders over £200 if delivery is in the UK. All other orders in the UK, shipping from £7.99 depending on the weight and measurement. Mainland Europe shipping charges start from £25. For all other countries shipping charges start from £50 for products like Cartridge Fuses and all others.
You can email us directly at sales@enrgtech.co.uk or via our website for any queries regarding Cartridge Fuses or any other product.
This depends on the Cartridge Fuses individual product and information that can be found on our website.
Yes, we offer special discounts on orders above £200 for Cartridge Fuses and all other products.
UK orders normally take between 2/3 working days. International orders normally take between 3/5 working days for all products including Cartridge Fuses.
Yes. We keep updating our stock frequently and if a product like Cartridge Fuses is not in stock then we will let you know.