Fuse Link NH3 of Different Sizes

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Product Description:

■ gG NH/NT Fuse-links
NH Protection

1. Product Description:

Is a non resettable disposable thermal protection device, low melting point alloy type RH, RF, RS series and organic chemistry type ry series, (such as electric fan, a motor, a transformer, electric cooker, the electric frying pan, disinfection cabinet, electric heating thermos, etc.). Fuse the temperature fuse in the equipment line, when the equipment does not work properly and lead to the temperature rise to set the protection value, the temperature fuse action to cut off the circuit, to prevent the safety accident.

 

2. Product Characteristic:

The product has a compact structure, good sealing performance, high sensitivity and reliability of action, low impact of electric current and vibration resistance, which is mainly used in the thermal protection of household appliances and industrial equipment.

 

3.Specification

Rated voltage:500V/690V AC   Rated breaking capacity:100kA
Standard specifications:IEC60269-2-1 EN60269-2-1 NFC63-210 UNE21.103 Class:gG-gL

Item

In(A)

With indicator

With striker

Packing

Order NO.

Price

Order NO.

Price

NH3/NT3 Fuse Link


(NH3)
NT3

315

2250 315

2150 315

1/24

355

2250 355

2150 355

400

2250 400

2150 400

425

2250 425

2150 425

500

2250 250

2150 250

630

2250 600

2150 600

 

4. Reference Picture:

 

 

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Q:Fuse fuse all the reasons
Pulse: When the circuit starts or the power supply is unstable, a momentary current causes the fuse to break
Q:Why the resistance of the fuse to be large
When the current flows through it, it will heat up, with the increase of time its heat is also increasing
Q:Why does the rated current of the fuse be based on the effective value as a standard?
And the effective value of the current from the integral point of view, is its effective heat effect. So not only the rated current of the fuse is expressed in terms of the rms value
Q:Selection of melt rated current
Because a variety of electrical equipment has a certain overload capacity, allowing a long time under certain conditions to run;
Q:Use a multimeter to check if the fuse is damaged
110KW motor, must be a step-down start, so choose the low value of the rated current of 2 times.
Q:Why the fuse resistance is large
And because it has a certain heat and quality, the increase in heat is reflected in the temperature rise, when the temperature rose to the fuse above the melting point of the fuse occurred when the fuse
Q:When selecting a fuse, you must consider several elements
The voltage of the circuit must be less than or equal to the rated voltage of the fuse.
Q:Why not tighten the fuse more easily blown
The first is not to blow and fuse caused by power failure should not be power, followed by rapid damage to the terminal to make the switch scrapped.
Q:What is an open fuse
completely exposed to the air in the air
Q:Is the fuse the capacitor
Under normal operation, the polymeric resin tightly binds the conductive particles to the crystalline structure, forming a chained conductive path, where the self-healing fuse is in a low resistance state (a), and the current flowing through the self-recovery fuse

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