One type of contactor is an electrically held contactor which is similar to a magnetic starter. A maximum of 12 poles may be installed on the base.
Unique Wiring Diagram For Mechanically Held Lighting
Mechanically held contactor wiring diagram. Positions 1 thru 4 on the base may be configured as either normally open no or normally closed nc while positions 5 and 6 may be configured as no onlylighting contactor mechanically and electrically held. It shows the elements of the circuit as simplified forms as well as the power and also signal connections in between the gadgets. The mechanically held operation ensures that the contactor will not switch to off during control power failure. Square d 8903 lighting contactor wiring diagram diagram 5ab6fcdb9a69 square d 8903 hey mike g ray again what would make a mechanically held in with lighting contactor wiring file type. A common relay or motor starter is a good example of this type of contactor. A mechanically held contactor is held in place without the need of a constant power drain.
It also ensures the removal of coil from the circuit for noise free operation and the elimination of all coil losses. The c30cn 30a mechanically held lighting contactors are designed for industrial commercial and outdoor lighting applications where efficient control is required. Type s multipole lighting contactors 8903 ul listed short circuit ratings up to 100000 a. Variety of mechanically held lighting contactor wiring diagram. The coil on these type of contactors is far less likely to burn up as it is only energized momentarily. Electrically held contactors siemens contactor type clm.
Most lighting and heating applications require a contactor to control the loads. Mount lighting contactor in the vertical position only as shown below. Class 8903 type s multipole lighting contactors are available as electrically held or mechanically held devices and can be ordered as open or installed in numerous types of nema rated enclosures with a long list of factory order modification form options. A wiring diagram is a simplified standard pictorial depiction of an electric circuit.
Gallery of Mechanically Held Contactor Wiring Diagram
