version for steel and fire retardant doors - Locking cylinder (Z4) 3061

Design is similar to standard version but for doors with sturdy metal sections, such as fire doors, or doors with highly protective shielding. This version is recommended in areas with high interference fields, such as server rooms, and for all metal doors. The FH version cannot be retrofitted.

If wired networks are used, we recommend using this cylinder version due to its reduced projection.

Before a locking cylinder is installed into a fire/smoke retardant door, the fire certification has to be checked first to ensure that conformity is in place.

It must be ensured that any locking devices or sealing strips do not impede the orderly operation of the MC.