This Star Line track busway tap box is a reliable solution for your circuit breaker needs. Designed for use in the electrical equipment and supplies industry, it is ideal for businesses and industrial settings. The tap box is compatible with L630C-4DG and measures 3 feet long. With its sturdy construction, you can trust this circuit breaker to provide lasting performance. The brand name Star Line is known for its quality and reliability in the industry, and this tap box lives up to that reputation. Invest in a top-notch circuit breaker solution with this tap box.