The main armament of the "Ceres"-class ships consisted of five BL 6-inch (152 mm) Mk XII guns that were mounted on the centreline and designated '1' to '5' from front to rear. While identical in number to the "Caledon"s, the layout was considerably improved in a number of ways. The gun formerly between the bridge and fore funnel was moved to a superfiring position over the forward gun with wider firing arc than in its old position. The others were also moved, one aft of the rear funnel, and the last two were in the stern, with one gun superfiring over the rearmost gun. The two QF 20-cwt anti-aircraft (AA) guns were positioned abreast the fore funnel. The torpedo armament of the "Ceres" class ships was identical to that of the "Caledon"s, with eight British 21-inch torpedo torpedo tubes in four twin mounts, two on each broadside. The "Ceres" class was protected by a waterline belt thick and over the steering gear had a protective deck armour that was thick. Unlike her sister ships, her conning tower was removed before she was completed.