Fast-acting fuse links NGTC series 400V 690V 1000V Semiconductor protection fuse link

 fast-acting fuse links NGTC series

Product description

NGTC series semiconductor equipment protection fuse links are suitable for AC systems, with rated voltages of 400V, 690V, and 1000V, and rated currents of 10A-800A. They are used for short-circuit protection of semiconductor components and complete equipment composed of them.

All performance indicators of the product comply with GB/T13539.4/IEC 60269-4.

Basic parameters of fuse links

Product model	size	Rated voltage          V	Rated current         A	Rated breaking  capacity    kA
NGTC00	0	AC 400           /               AC 800	10	100
			16
			20
			25
			32
			40
			50
			63
			80
			100
			125
			160
NGTC1	1	AC 400           /               AC 690         /              AC1000	100
			125
			160
			200
			250
NGTC2	2		200
			250
			280
			315
			355
			400
			355
NGTC3	3		400
			450
			500
			560
			630
			710*
			800*

*Indicates that the current specification is only applicable to AC400V and AC690V

Appearance and installation dimensions

Are there standard sizes for semiconductor fuses, and how do these dimensions influence buyer decisions?

 

The size of a fuse is an important factor because it not only determines whether the fuse will physically fit into the intended space but also relates to its current and voltage ratings and its ability to dissipate heat. Here are key aspects regarding the standard sizes of semiconductor fuses and their impact on buyer decisions:

 

Standard Sizes

1.Cartridge Fuses: These are one of the most common types of semiconductor fuses, available in standard sizes like 10×38 mm, 14×51 mm, and 22×58 mm. They are widely used in industrial and commercial applications.

 

2.Blade Fuses: Common in automotive applications, these fuses have standard sizes like mini, standard, and maxi, each progressively larger and capable of handling higher currents.

 

3.Surface Mount Fuses: Used in electronic devices, these fuses come in standard sizes like 0402, 0603, 1206, etc., which indicate their length and width in inches (e.g., 0402 means 0.04 inches by 0.02 inches).

 

4.Square Body Fuses: These are larger fuses used in high-power applications and come in standardized dimensions suitable for different current ratings.

 

Influence on Buyer Decisions

1.Physical Space Constraints: The available space in the equipment or on the circuit board is a primary consideration. Buyers must ensure the fuse fits into the designated space without crowding or interfering with other components.

 

2.Current and Voltage Ratings: Generally, larger fuses can handle higher currents and voltages. Buyers need to balance size constraints with the electrical requirements of the application.

 

3.Heat Dissipation: Larger fuses typically dissipate heat more effectively. In applications with high current loads or where thermal management is a concern, this might influence the choice towards larger sizes.

 

4.Circuit Design Compatibility: For printed circuit boards (PCBs) and other compact electronic assemblies, the fuse size must be compatible with the circuit design. This often requires selecting from standardized surface mount sizes.

 

5.Ease of Replacement: In applications where fuses might need to be regularly replaced, accessibility and ease of handling can be important. This is especially true in automotive and some industrial applications.

 

6.Regulatory and Safety Requirements: Certain applications may have safety or regulatory requirements that specify or limit the size and type of fuse that can be used.

 

7.Cost Considerations: Larger fuses tend to be more expensive, so there is often a trade-off between size (and associated capacity) and cost.

 

Conclusion

In summary, while standard sizes for semiconductor fuses provide a level of uniformity and predictability, the selection of the appropriate size is influenced by a combination of physical, electrical, thermal, and regulatory considerations. Buyers must carefully evaluate these factors to ensure they choose a fuse that not only fits their space requirements but also meets the electrical and safety needs of their application.

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