BALLAST R-S 120V 18
An electrical ballast is a device that limits the current through an electrical load. These are most often used when a load (such as an arc discharge) has its terminal voltage decline when current through the load increases. If such a device were connected to a constant-voltage power supply, it would draw an increasing amount of current until it is destroyed or causes the power supply to fail. To prevent this, a ballast provides a positive resistance or reactance that limits the current. The ballast provides for the proper operation of the negative-resistance device by limiting current. Series resistors are used as ballasts to control the current through LEDs.
The Delfield Company is a United States commercial food service equipment manufacturer specializing in food holding equipment including serving lines, refrigerators, prep tables and custom manufactured equipment. Delfield’s high performance prep tables are designed to perform in the harshest of restaurant environments.
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