VELFAC lock boxes accept 17mm Europrofile cylinders. The cylinder is used to connect the key to the lock mechanism and will ‘throw’ or ‘withdraw’ the deadbolt. Certain lockboxes will operate the cylinder when given an extra turn.
Cylinders can be changed to give many types of key arrangements without changing the lock case, although the type and shape of cylinder is always dependent upon the lock case choice.
VELFAC cylinders are Security Class 2 in accordance with EN 1303.