RONIS key-operated switch, 22 mm, round, plastic, lock number SB30, with 2 keys, 3 switch positions I>O<II, momentary contact on the left, latching on the right, actuating angle 2x45°, 10:30h/12h/13:30h, Key removal O+II, possible special locks: SB31, 421, 455, with laser labeling, upper case and lower case, always upper case at beginning of line