InfoPower Archive

All switches, regardless of the look or size, operate in the same manner. A switch is a mechanical device used to open and close a circuit. Opening a circuit (turns a device OFF) is achieved by breaking a connection in the circuit. This stops current flow. Closing the circuit (turns a device ON) allows the current to flow again. A switch may be used wherever incoming power may need to be controlled. This could range anywhere from a vacuum cleaner to a life-support machine.

When designing a new electronic/electrical product, a critical factor to determine is circuit protection. This protection usually comes in one of two forms: a circuit breaker or a fuse. A circuit breaker is an automatic switch that prohibits the flow of electric current when it is rapidly overloaded or unusually stressed. A fuse is a safety device that protects an electric circuit from excessive current.

When designing electronic or electrical equipment, a critical element is circuit protection. This protection usually is through a circuit breaker or a fuse. While the functions are similar, there are differences to consider when choosing between the two.

A strain relief or cable gland can provide protection to the wires and cable by securing the cable of a power cord to the panel of the electrical equipment. It helps to protect from stress and damage as it runs through the panel of the equipment. While it does not relieve strain on a cable as it exits the equipment, it does relieve the strain on the electrical connection and circuitry inside the equipment.

Designing, building, and maintaining products for worldwide markets can help to enhance a company’s success. During product development and prior to shipment, it’s essential to know if that product will function properly in the country it is intended to be used in—which makes product testing crucial.