Here are some common relay specifications:

Coil Voltage: This is the voltage required to energize the relay’s coil, causing the switch to activate. It could be AC or DC, and common voltages are 5V, 12V, 24V, and 48V, among others. Contact Configuration: Refers to the number and types of contacts that the relay has. Common types are:
SPST (Single Pole Single Throw): A simple on/off switch. SPDT (Single Pole Double Throw): A switch that can connect to one of two different outputs. DPDT (Double Pole Double Throw): Two separate switches with two outputs each. Contact Rating: Specifies the maximum current and voltage that the relay’s contacts can handle without damage. It’s important to choose a relay with appropriate contact ratings for the circuit.
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