This panelboard enclosure accessory is constructed from code-gauge galvanized steel and comes unpainted. Designed for use with PRL1a and PRL2a series panelboards, it offers a robust solution for your electrical enclosure needs. It is CSA/UL approved, ensuring compliance with safety standards..The EZB2060RC is a panelboard enclosure accessory made of code-gauge galvanized steel. It measures 20 inches wide by 60 inches high and is unpainted. This enclosure is designed for use with PRL1a and PRL2a series panelboards and is CSA/UL approved. It is a Type 1 and 3R box.