WTZ-A20 Electric Hoist Block Overload Limiter

Basic principle of  WTZ-A20 overload indicator:

When the crane lifting a load, the sensor is occurring deformation. In the meantime, convert weight of load into electrical signal, after operation and amplification, indicate the value of weight. When the load reaches 90% of rating, it gives an alarm; when the value of the weight surpass the rating, the power will be turn off at once.
Our company designs the    WTZ-A20  overload indicator for electric hoist and elevator. To protect the safe of operators, WTZ improve continually and blaze new trails constantly.

Advantages and characteristics:

WTZ-A20  overload indicator has excellent characteristics, such as the high reliability, the strong anti-jamming ability, the quick survey speed, the measuring accuracy, the simple circuit, the low cost, easy to install and operate and so on.
1. size: 60x70x30MM
2. Installation: control unit/sensor integrated design make it easy to install
3. Humanized appearance avoid reflection
4. Simple operation: three buttons can be used to set and modification, easy to operate
5. Low power consumption 
6. Strong anti-jamming capability
7. Power: 380V, suitable for site installation ring

Yichang WTAU Electronic Equipment Co. Ltd is a national high-tech enterprise which located in the “Hydropower capital”— Yichang. WTAU is committed to researching , developing and producing safety devices for crane cranes , automatic monitoring control systems , etc. WTAU puts the principle “make sure the lifting equipments are operated safely and reliably” as our duty and takes the high-tech as the core. WTAU has awarded many patents and major achievements of science and technology. The Load Moment Indicator, Load Indicator, Anemometer ,Wind Speed Sensor,Limit Switches,etc. which are researched independently are widely used in electrical, chemical, steel, metallurgy, construction, ports, shipping and other industries.

Any requests,please feel free to contact us.