Generally a circuit breaker (like a light switch)
But I guess you could use a resistor of the right resistance
If you are talking about the circuit breaker there is an electromagnetic coil in it which get magnetized on a specific amount of current and breaks the circuit
A device that opens and closes a circuit is called a switch.
A pressure switch opens or closes in response to a predefined pressure setpoint, which is determined by the internal mechanism of the switch. When the pressure in the system rises and exceeds this setpoint, the switch activates, either opening or closing an electrical circuit. The specific action—whether it opens or closes—depends on the design of the switch, which can be configured as normally open (NO) or normally closed (NC). Additionally, the pressure hysteresis settings can influence the exact point at which the switch resets after activation.
An electrical switch that is actuated by a separate circuit is known as a relay. A relay allows a low-power circuit to control a high-power circuit without direct electrical connection between the two. When the separate circuit activates the relay's coil, it creates a magnetic field that closes or opens the contacts in the high-power circuit, enabling or disabling the flow of electricity. This setup is commonly used in automation, control systems, and protection devices.
fuse
The power on switch
The switch.
A switch.
A switch, switching transistor, or circuit breaker usually does.
opens and closes the circuit
Generally a circuit breaker (like a light switch) But I guess you could use a resistor of the right resistance If you are talking about the circuit breaker there is an electromagnetic coil in it which get magnetized on a specific amount of current and breaks the circuit
opens and closes the circuit
The definition of a switch is a device that closes and opens an electrical circuit.
An electrical device activated by a current that opens or closes another circuit is called a relay. A contactor also falls into this category.
A relay is a switch which opens / or closes a circuit
A relay is an electronic switching device that opens or closes a circuit. An electromechanical relay would be one that is opereated remotely using an electrical circuit that mechanically operated the relay, which in turn opens/closes the second ciruit.
A switch is a device that is used to open and close an electrical circuit that is is connected into.
A device that opens and closes a circuit is called a switch.