DZ108 Series Circuit Breakers

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Scope of application

Construction features

Main technical parameters

Overall and installation dimensions

Q: What material is used for the fuse: fuse is made of lead and antimony alloy; the second part of the electrode, usually two, it is an important part of the melt and circuit connection, it must have Good conductivity, should not produce a significant installation of contact resistance

Q: What is the principle of choosing a fuse?: of the protective object to provide reliable protection over the entire curve.

Q: When selecting a fuse, you must consider several elements: This is the main condition to determine the choice of fuse specifications, according to this condition can initially determine the fuse specifications.

Q: What is the melt of the fuse?: The thermal inertia of the melt is very small, melting very quickly, usually in the filamentous copper or silver melt welding to fusible alloy (such as tin or cadmium alloy) of the small spherical melt

Q: Why the resistance of the fuse to be large: The size of the current and the resistance determines the rate at which the heat is generated. The structure of the fuse and the condition of its installation determine the rate of heat dissipation. If the velocity of heat is less than the rate of heat dissipation, the fuse will not blow

Q: Circuit breaker and fuse in the role of what in common: In common: both are circuit protection appliances, used to achieve the overload and short circuit protection of the circuit breaker.

Q: Fuse inspection check how to do?: check the fuse of the contact point is intact, close contact, with or without overheating.

Q: What is the role of thermal fuse: When the motor for the current increases, the temperature is too high when the temperature insurance will be blown, so as to protect the motor from burning.

Q: Why is there a diode icon on the fuse?: The light-emitting diodes connected to both ends of the FU are illuminated to indicate that the fuse has been blown.

Q: Use a multimeter to check if the fuse is damaged: So the choice of fuse for the protection of lines and equipment, the first choice of the melt must be the size of the specifications, and then according to the melt to select the fuse

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