Low Voltage NH00 100A HRC Fuse - Reliable Electrical Protection from China Suppliers and Factory
Description
NH fuses (also known as NH Knife Blade Fuses or DIN NH Blade Fuses) were defined in the German DIN standard 43620 around 1944. They were primarily designed as general purpose fuses for the protection of conductors. NH fuses are one-time fuses, meaning once they have blown, they must be replaced with a new fuse with the same characteristics.
NH Fuse Construction
NH fuses are constructed from a rectangular ceramic casing enclosed by a cover plate that features a metal blade style terminal on each end. The fuse element inside the casing is connected to the cover plate / blade terminals. The majority of NH Fuses have a trip indicator to show if the fuse element has blown. Each cover plate includes a metal extraction lug that enables quick removal of the fuse from a holder when using the recommended NH fuse puller tool.
How to choose NH fuse?
Choose the correct size, NH00, NH1, NH2, NH3, NH4.
Select a rated voltage equal to or greater than the rated voltage, and the current you require. Too high or too low current cannot effectively protect the circuit.
We supply both of them, 1pole-4poles, choose the correct one you need.
Where can I buy NH Fuses?
Our factory has rich experience in producing NH series fuses. The products have passed CE and can be sold to EU countries. High-quality ceramics and high-quality copper provide better quality. SR brand gives you reliable products and better customer service.
Here’re our product specifications, if any questions, please contact us on Whatsapp/ Email.
Frequently Asked Questions (FAQ)
What are NH fuses and what is their primary application?
NH fuses (also known as NH Knife Blade Fuses or DIN NH Blade Fuses) are general-purpose protective devices defined in the German DIN standard 43620. They are primarily designed for the protection of electrical conductors and circuitry.
Can NH fuses be reused once they have blown?
No. NH fuses are designed as one-time fuses. Once the internal fuse element has blown, the entire fuse unit must be replaced with a new one sharing identical electrical and physical characteristics.
What are the key structural components of an NH fuse?
An NH fuse consists of a rectangular ceramic casing, a cover plate, metal blade terminals on each end, an internal fuse element, a trip indicator to show status, and extraction lugs to facilitate safe removal using a recommended puller tool.
How do I select the right size and rating for an NH fuse?
You must choose the correct physical dimension (such as NH00, NH1, NH2, NH3, or NH4) and select a rated voltage equal to or greater than the circuit voltage. The current rating must match your requirements, as incorrect ratings cannot effectively protect the circuit.
Are your factory's NH fuses certified for international markets?
Yes, our NH series fuses have passed CE certification and can be legally sold to EU countries. They are built with high-quality ceramics and copper under the reliable SR brand.