From the time we started school, teachers and parents began to instill in us an idea. Knowledge changes fate, changes the world, and creates new things. For example, the appearance of a washing machine allows people to bid farewell to hand-washing clothes. The appearance of air-conditioning allows people to say goodbye to manual fan-making. The appearance of sweeping robots makes people bid farewell to manual cleaning. The invention has never stopped since ancient times. However, it is not Every creation is so praiseworthy. Some inventions really make people laugh and cry.
False sound meter
Many people admire those who sing and sing can change between true and false, and can also sing high tones, but these are all we hear with our ears. As early as 1925, we already had a false-sound meter. It can Measure how much the pitch increases when you sing from true to false, but for now it doesn't seem to be of much use.
KNLN6-63 Residual Current Circuit Breaker With Over Load Protection
KNLN6-63 TWO FUNCTION : MCB AND RCCB FUNCTIONS
leakage breaker is suitable for the leakage protection of the line of AC 50/60Hz, rated voltage single phase 240V, rated current up to 63A. When there is human electricity shock or if the leakage current of the line exceeds the prescribed value, it will automatically cut off the power within 0.1s to protect human safety and prevent the accident due to the current leakage.
leakage breaker can protect against overload and short-circuit. It can be used to protect the line from being overloaded and short-circuited as wellas infrequent changeover of the line in normal situation. It complies with standard of IEC/EN61009-1 and GB16917.1.
KNLN6-63 Residual Current Circuit Breaker,Residual Current Circuit Breaker with Over Load Protection 1p,Residual Current Circuit Breaker with Over Load Protection 2p
Wenzhou Korlen Electric Appliances Co., Ltd. , https://www.zjmannualmotorstarter.com