Matters Needing Attention When Purchasing Relays

Matters Needing Attention When Purchasing Relays

There are currently many purchases to be made to choose a relay and don't know how to go about it!

Understand the necessary conditions first:

A: The supply voltage of the circuit being mastered and the maximum current that can be supplied.

B: The voltage and current in the circuit being mastered ② The voltage and current in the circuit being mastered.

C: How many sets and what conditions of contacts are required for the circuit being controlled.

Points to pay attention to when purchasing relays：

A: When selecting a relay, the supply voltage of the individual mastering circuit can be used as a basis for selection. The control circuit should be able to supply the relay with sufficient current for the task, otherwise the relay is unstable.

B: After consulting the relevant materials to determine the conditions of use, you can look up the relevant materials to find out the type and specification number of the relay required. If you already have a relay on hand, you can check whether it can be used according to the material. Finally, consider whether the size is suitable.

C: Pay attention to the volume of the appliance. If it is used for individual appliances, in addition to considering the volume of the chassis, small relays are important to consider the circuit board installation planning. For small appliances, such as toys and remote control installations, ultra-small relay products should be used.

采购继电器时需要注意的事项

目前有很多采购选择继电器时，不知如何去选择!

先理解必要的条件：

A: 掌握电路的电源电压和能供给的电流；

B: 被掌握电路中的电压和电流；

C: 被控电路须要几组、什么情势的触点。

继电器的采购需要注意的几点：

①选用继电器时，个别掌握电路的电源电压可作为选用的根据。掌握电路应能给继电器供给足够的任务电流，否则继电器吸合是不稳固的。

②查阅有关材料肯定运用条件后，可查找相干材料，找出需要的继电器的型号和规格号。若手头已有继电器，可根据材料核查能否能够应用。然后斟酌尺寸能否适宜。

③注重用具的容积。若是用于个别用电器，除斟酌机箱容积外，小型继电器重要斟酌电路板安装规划。关于小型电器，如玩具、遥控安装则应选用超小型继电器产品