FAQ - KHAN ELECTRONIC

Q:What does “Splashproof” mean?

Splashproof means the item can handle water splashes from any direction but should not be fully submerged like water-resistant devices.

Q:What does “Watertight” mean?

Watertight materials that fully prevent water from entering under specific conditions. This level of protection is stronger than water resistance. It not only keeps water out but can also handle higher water pressures, making it suitable for tough environments.

Q:What does “Water-resistant” mean?

This term broadly conveys that a product offers a degree of protection against water penetration, though not complete imperviousness. Water-resistant products are designed to withstand mild water exposure, such as light rain and splashes, without sustaining damage.

Q:What does “Waterproof” mean?

Waterproof materials are crafted to offer comprehensive protection against water intrusion, even when fully submerged. Products bearing the waterproof label have undergone rigorous testing to ensure they can withstand specific depths and pressures

Q:Doesn't gold work on silver contacts?

The contacts being discussed are internal to the switch, so the end user doesn’t have the ability to mix the two types. In general, it is best to use the same metals together instead of mixing them.

Q:What are the advantages of gold contacts on switches？

Gold contacts main advantage over silver is that they tarnish less easily.

Q:What are the disadvantages of silver contacts on switches?

A disadvantage to using silver contacts, however, is that they can be easily tarnished by moisture and airborne contaminants.

Q:What are the advantages of silver contacts on switches?

Silver is the most common type of contact material for switches. First off, silver contacts are less expensive than gold. Second, silver contacts can operate with a greater range of voltages and currents compared to gold. Third, silver contacts have a very low contact resistance.

Q:What is Operating Force?

Operating Force refers to the amount of force applied to the switch’s actuation mechanism to change the motion or cause the contacts to snap over. More simply put: how hard you have to press a switch to make it work.

Q:What is Normally closed (NC) Switch Contact?

An example of a device using normally closed contacts is an emergency stop button on a machine. The machine will keep running until you press the emergency stop button, thus opening the circuit and stopping the machine.

Q:What is Normally open (NO) Switch Contact?

An example of a device using normally open contacts is a doorbell. A doorbell doesn’t ring on its own, you have to push the button. Pushing the button closes the circuit, making the doorbell ring.

Q:How to Convert AC to DC Voltage?

The simplest and most effective means of converting Alternating Current to Direct Current is through a circuit component called a rectifier.