STEP 535 is a motor lock with a hook bolt for door environments with high-security requirements. The lock is adapted for narrow profile with 35 mm back set. It is designed for high-frequency door environments.

The lock case is made of stainless steel and has a modern bolt placement with the hook bolt located in the center of the lock case. This powerful lock can be installed in door environments that are used frequently.

For door environments with the toughest burglary requirements

STEP 535 is one of the most secure motor locks on the market and can be installed in door environments with the most stringent burglary protection requirements. The hook bolt is extremely strong, fast, and can withstand significant stress.

The lock is certified for the highest burglary protection, class 5, according to SSF 3522, as well as Grade 7 according to EN 14846:2008.

STEP 535 has an extremely strong hook bolt that is also blocked and locked in the closed position. The breaking strength is 54 kN (5,400 kg). The lock also has a panic lock function.

Choose width of the forend plate

STEP 535 is available with a 22 mm (ST535) or 25 mm (ST535-25) wide forend plate. Both are certified in class 5 according to SSF 3522.

Evacuation and re-entry

STEP 535 also serves as an evacuation lock in SSF 3522 class 2B when used with STEP Exit emergency exit devices. Certified according to EN 179:2008.

During evacuation, the control unit can manage re-locking or re-entry in several ways that can be customized to the needs of the facility. Continuous re-entry, time-controlled, and/or fire alarm-controlled.

Recovery of the re-entry mode can be done with a key, a reset input, or a reset fire alarm.

For doors with fire safety requirements

Certified in fire resistance class E/EI120 according to EN 14846:2008 in cambination with a latch lock.

Manipulation protected barrier

The lock has a double blocking, where the hook bolts block also has a manipualtion protected barrier. The barrier’s position is monitored by an optical sensor, ensuring that it is indeed locked. The barrier is completely shielded from access, thus providing protection against tampering.

With unique FreeDrive^® technology

The FreeDrive^® technology enables the locks motor and gearbox to disengages every time the door unlocks mechanically. This means that the wear minimizes when using lever handle, knob, keys or emergency exit device. Locks with FreeDrive^® used together with STEP Exit on doors with emergency exits can therefore be used thousands of times every day.

Functional description STEP 535

• The hook bolt locks/unlocks electrically via opening signal from access control system, code lock, push button or similar.
• The hook bolt locks/unlocks mechanically via the cylinder follower.

Combine with STEP Exit to maximize the benefits of FreeDrive^®

Combine with the STEP Exit emergency exit device to create a safer evacuation route with unparalleled user-friendliness and, furthermore, to maximize the benefits of the FreeDrive^® technology.

The FreeDrive^® technology disconnects the motor and gearbox, meaning that they are never affected when the exit device’s lever is used. As a result, the impact on the motor and gearbox is minimized, even if the exit device is used thousands of times each day.

Go to STEP Exit for STEP 535