Table of Contents
What does a lighting contactor do?
Relay switches are used to control the flow of electricity through a circuit. A lighting contactor switch operates at a lower but safer load and uses an electromagnet to control the high voltage/current circuit. The entire system needs to be turned off.
What is the purpose of a contactor?
A contactor is a type of relay that can be used to switch an electrical circuit. Electric motor and lighting applications are where they are used the most.
Why use a contactor instead of a switch?
Contactors are used for a reason. High power applications can use contactors. They are larger and more heavy-duty than control relays and allow them to switch higher power loads on and off for many thousands of cycles.
Do lighting contactors contain overload protection?
overload protection is not provided by contactors when controlling electrical loads and motors.
What is difference between relay and contactor?
A contactor joins 2 poles without a common circuit between them, and a relay has a common contact that connects to a neutral position. Relays are usually rated to only 250V, while contactors can be rated up to 1000V.
How does a mechanically held lighting contactor work?
There is a mechanical latched device in the lighting contactor. When the “Closed” pushbutton is turned on, the closing coil is turned off. As the contactor closes, the latched lever hooks over the latched pin to mechanically close it.
What is the difference between a lighting contactor and a definite purpose contactor?
The ‘Kias’ of the contator world are denier purpose contactors. They were made cheap, sold cheap, and thrown away when they acted up. It is possible to make lighting contators to be repairable and more durable than other types of contactors.
Can a definite purpose contactor be used for lighting?
It’s selected based on the full load Amp ( ) and the coil voltages. The general purpose contactor is called the NEMA. Light duty as well as heavy duty applications can be done with it.
What is the purpose of a lighting contactor?
The lighting contactors are designed to provide a safe, convenient way to switch between lamp loads.
What is a definite purpose contactor?
High performance with flexibility and reliability can be found in dinite purpose contactors. They can be used for heating, cooling, and food service equipment.
Are definite purpose contactors serviceable?
If you use another manufacturer, you can most likely use ours without any problems.
What is an electrically held contactor?
A motor starter is an example of a contactor that requires a constant power drain.
What is a electrical contactor used for?
A contactor is an electrical device that can be used to switch an electrical circuit. It’s considered a special type of relay.
What is mechanically held contactor?
The coil on these type of contactors is not likely to burn up as it only takes a short time for the power to come back on.
How do mechanically held contactor operate?
The mechanically held lighting contactor has a mechanism to shut it down. When the “Closed” pushbutton is turned on, the closing coil is turned off. As the contactor closes, the lever hooks over the pin to mechanically close it.
What is the most common type of contactor?
The following applications use a contactor. The motor starter is one of the most common applications of contactor. It is used to protect the industrial motor from overload. Industrial, commercial, and residential lighting applications use contactors.