ABB offers Q‑Duct, a wide variety of wire duct and accessories. Bases are available in six different width sizes and heights from .67" to 3.94" (17mm to 100mm). Top profile of the ribs of all wiring duct have been redesigned to make the cover easier to open and close. The new rounded shape prevents abrasions to the installer's hands. The scoreline at the base of each finger enables a clean break to create an opening to run wires through. ABB wiring duct is used in applications with rated voltage of up to 1000 VAC and 1500 VDC.