Contactor Auxiliary Contact Symbol

This includes power contacts auxiliary contacts and contact springs.

Contactor auxiliary contact symbol. They are commonly used as interlocks or retainers on the primary device s control circuit and often used to give indication of. Enclosures are made of insulating materials such as bakelite nylon 6 and. Since i am using more than 1 of the auxiliary contact blocks on the same relay i do not know how to handle the pin list. The contacts are the current carrying part of the contactor.

A contactor has three components. When in operation a contact my be either open a condition which blocks current flow or closed a condition which allows current flow. Most of the time a small voltage or current is used to switch other voltages or higher currents that may be electromechanical or fully electronic type. When the auxiliary contactor c1 is on the motor power circuit is completed and the motor starts and remains on until the contactor c1 is de energized and the power circuit to the motor terminals is broken.

I use the multi catalog button to add the contacts to the coil symbol. These contacts may appear at several different locations in the line diagram. Using the predefined library symbols for the coils and contacts the contacts always come in as child contacts and the b m does not total the children. The electromagnet or coil provides the driving force to close the contacts the enclosure is a frame housing the contacts and the electromagnet.

No contacts relays contactors and magnetic motor starters normally have more than one set of auxiliary contacts. Relay symbols and electromagnets. The relay are switching devices activated by signals. World the symbols used in this course are common in the united states and many other countries.

These contacts are physically linked to the main switching mechanism and activate at the same time it does. Numerical cross reference systems quickly identify the location and type of contacts controlled by a given device. Available in svg png jpg dxf dwg formats. Contact symbols various devices incorporate contacts to control the flow of current to other control components.