How To Choose The Right Relay Correctly?

Before purchasing a suitable relay, you must first understand the necessary conditions:
① Understand the power supply voltage of the current control circuit and the maximum current it can provide;
② Understand the voltage and current in the controlled circuit;
③ How many sets and what forms of contacts are needed for the controlled circuit?
1. When selecting a relay, the power supply voltage of the general control circuit can be used as the basis for selection. The control circuit should be able to provide sufficient operating current to the relay, otherwise the relay will be unstable and will not work properly.
2. After consulting relevant information and determining your own usage conditions, find out the model and specification number of the required relay. If you already have a relay on hand, you can check whether it can be used based on the relay on hand and your own usage conditions. Finally consider whether the size is appropriate.
3. Pay attention to the volume of the appliance. If used for general electrical appliances, in addition to considering the chassis volume, the small relay mainly considers the circuit board installation layout. For small electrical appliances, such as toys and remote control devices, which require layout, ultra-small relay products should be used.