EATON D Series MOV Suppressors

What is a VDR?

VDRs (Voltage Dependent Resistors) are two-terminal passive electronic components that change their resistance based on the voltage applied to them. This functionality allows them to protect against electrical surges or spikes in various electrical and electronic applications.

What is the advantage of an electromechanical relay?

Electromechanical relays use an electromagnet to control the switching of an electrical circuit. They consist of a coil that generates a magnetic field when current flows through it. The armature, when attracted to a magnetic field, makes / breaks the connection or a set of contacts that control the flow of electrical current.

What is the difference between NO and NC electromechanical relays?

• NO (Normally Closed) relays have their contacts in the open position when no current is flowing through the coil. When current flows through the coil, it creates a magnetic field that attracts the armature and closes the contacts, thus completing the circuit.
• NC (Normally Closed) relays have their contacts in a closed position until the current starts flowing through the coil, forcing the contacts to open and breaking the circuit.