What type of electrical device is typically used to connect two wires together?

The terminal block is designed specifically for connecting two or more wires together in a secure and organized manner. It provides multiple connection points where wires can be easily attached and disconnected, facilitating safe and efficient electrical connections. Terminal blocks typically have a housing that protects the connections and are equipped with screw terminals or spring clamps to ensure that the wires are held firmly.

In contrast, a transformer is utilized to change the voltage of an electrical supply, but it does not serve the purpose of connecting wires directly. A multi-meter is an instrument used for measuring electrical properties such as voltage, current, and resistance; it does not provide a method for physically connecting wires. A surge protector, on the other hand, is designed to protect electrical devices from voltage spikes and surges, rather than connecting wires. Thus, the terminal block stands out as the correct choice for connecting wires together.