Notes on the use of relays 1. Rated operating voltage: This is the voltage required by the coil for the relay to operate normally. Depending on the type of relay, it can be either AC voltage or DC voltage.2. DC resistance: This is the DC resistance of the coil in the relay and can be measured by a
How do I choose a relay?Depending on the application, the power you are using and the size and function of the device, you can choose between different types of electromagnetic relays.To test an electromagnetic relay, you can use a regulated power supply and an ammeter to monitor the voltage and cur
The non-contact IC card (inductive IC card) card reader that is disabled by the door is an important part of the access control system and the key device for the signal input of the access control system.
