Description
WRR-533 WRR-540 WRR-541 WRR-542 WRR-543 type B thermocouples
Product introduction:
WRR-533 WRR-540 WRR-541 WRR-542 WRR-543 type B thermocouples, when the non-combustible resistor is used for the first time: it will cause smoke, which is normal. Please use it with peace of mind.
The non-combustible coating complies with the US UL-94 non-combustibility test, V-0 level, and the burning duration is 0 seconds.
Resistance to cleaning, non-combustible resistors cannot be cleaned with organic solvents.
Use in oil, non-combustible resistor cannot be used in oil.
For high-frequency machinery, non-combustible resistors generate inductance due to wire winding, which cannot be used on high-frequency machinery. You need to choose another suitable resistor, please discuss with us.
Instant surge current pulse: If it is necessary to impress a large load in a short time, it must be confirmed in advance that it has resistance to surge.
Practical load: In order to prevent fatigue of the resistance wire that symbolizes the life of the resistor, please use the power within the rated voltage reduction curve.
Minimum load factor: In order to prevent the poor contact caused by the oxide film over time, please use a rated power of 1/10 or more.
Although the hardness of the coating film of the non-combustible resistor is higher than the hardness of the 3H pencil, please do not use sharp objects such as screwdrivers to describe it.
When the non-combustible resistor is used at full load rating, the surface will generate high temperature of about 350 ° C-400 ° C. Do not touch it with your hand. In order to maintain the resistor for long-term use, please keep the surface temperature of the resistor at 200 ° C. the following.
In order to suppress the temperature rise, a considerable margin is required. Do not use it just above the full load rating. For long-term use, its safety concerns, the wattage must be more than 4 times the rated power, and please try to use it below 25% of the rated power.
Precautions for use and placement: Sometimes a wire-wound resistor uses a very thin wire (thinner than a hair) depending on the resistance. When there are factors such as salt damage, humidity, dust, and corrosivity in the environment, it is easy to cause the wire to break easily. Please avoid using it in such an environment. When installing, be careful not to allow dust to accumulate on the folded surface. Dust may cause disconnection or poor contact. Music core online has perfect technical support and fast response mechanism, which is the best solution for you to purchase various types of resistors.
