HET-AW

Fuseholders could be broadly classified in two categories based on their application field and working principles: HET-AW and DIN Rail mounted.

High Endurance Terminal Fuseholders, commonly known as HET-AW, are typically used in high vibration and temperature environments. This type of fuseholder is generally used in the automotive industry for backlighting, sound systems, ECUs, relays, and other applications. HET-AW fuseholders provide superior durability and reliability, as well as quick disconnection capabilities due to their heavy-duty contacts. Furthermore, they have a wide range of contact resistance values, from 0.08Ω to 0.5Ω, which makes them suitable for different applications.

The working principle of HET-AW fuseholder is quite simple. It uses a spring-loaded mechanism that secures the fuse into the contact by pressing it downward into the contact. In addition, a secondary pin helps the fuse to remain in place even after repeated vibration and thermal cycling. This ensures a reliable electrical connection and a safe and secure fuse installation. HET-AW fuseholders are designed to accommodate many types of automotive-grade fuses, from mini-fuses to low-profile types.

In comparison to HET-AW fuseholders, DIN rail mounted models are typically used in industrial applications that require lower vibration levels and are subject to higher temperatures. This type of fuseholder features robust frames and is capable of providing high mechanical strength. The DIN rail connection also ensures that the fuseholder can be securely mounted in place with no chance of it becoming loose or disconnected.

The working principle of DIN rail mounted models is slightly different. Instead of relying on a spring-loaded mechanism, it uses screws to secure the fuse into the contact. This ensures a safe and secure connection that is unaffected by vibration and thermal cycling. DIN rail mounted fuseholders are designed to accommodate various types of fuses, including DIN, midi, and mini-fuses.

In conclusion, HET-AW and DIN rail mounted fuseholders are both suitable for a wide range of applications. However, their application field and working principles vary greatly, meaning that it is important to consider the specific requirements of the application prior to selecting the appropriate type of fuseholder.