Powerful, fast motor lock for narrow‑profile doors
STEP 535 is a strong motor lock built to withstand heavy use. It is adapted for narrow profile with 35 mm back set. The lock case is made of stainless steel with modern bolt placement with the hook bolt placed in the center of the lock case. It is designed for door environments with the toughest intrusion protection requirements, while also withstanding a high opening frequency.
Strong and manipulation-protected hook bolt
The hook bolt is exceptionally strong, with a breaking strength of 56 kN (5,600 kg). A manipulation protected barrier automatically blocks the hook bolt upon locking, while an indicator detects the bolt’s position. This ensures that you can trust the door is truly locked.
For door environments with the highest security requirements
- Certified for burglary protection in Class 5 acc. to SSF 3522.
- Certified for burglary protection in Grade 7 acc. to EN 12209.
- Includes panic locking function.
With unique FreeDrive®
The FreeDrive® technology enables the locks motor and gearbox to disengage 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® are therefore ideal for use with STEP Exit on emergency exit doors and can be operated thousands of times daily.
For door environments with fire requirements
Certified in fire technical class E/EI120 acc to. EN 14846 in combination with a latch lock.
For door environments with evacuation requirements
Certified for evacuation acc to. EN 179. Go to the Exitguide to find emergency devices for STEP 535.
Control unit with many smart features
ST500C control unit uses encrypted OSDP AES-128 communication for locking, unlocking and status signals. It can manage up to two motor locks, which can be controlled individually or synchronized.
The control unit has multiple selectable AUX outputs and supports features like re-locking or re-entry.
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 acc. to SSF 3522.
Swedish premium quality
All our products are developed and manufactured by us in Sweden. Maximum functionality and operational reliability are features we never compromise on. By choosing STEP, you not only support Swedish technology and industry – you also choose premium-quality products that ensure long-term reliability.
STEP 535 Motor lock
Motor lock adapted for narrow profile door environments with high-security requirements
STEP 535 is one of the most secure motor locks on the market. It is a fast and powerful lock equipped with smart FreeDrive® technology. It can combine fire and evacuation requirements with the highest intrusion protection requirements and can also be placed in high-frequency used door environments.
Motor lock for narrow profile with hook bolt and FreeDrive. Combines intrusion security, fire and evacuation requirements. Class 5 acc. to SSF 3522.
Functional description
- 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.
Certificates
- Certified in Class 5 according to SSF 3522.
- Certified in Grade 7 according to EN 14846.
- Certified in Grade L for corrosion, temperatures and humidity, which corresponds to high requirements according to EN 14846.
- Certified in fire technical class E/EI120 according EN 14846:2008 in combination with a latch lock.
- Certified for evacuation according to EN 179:2008.
Technical information
- Unlocks in less than 0.1 second.
- Modern bolt placement.
- 54 kN (5 400 kg) breaking strength.
- Panic lock function.
- Lock case in stainless steel.
- FreeDrive® technology.
- Manipulation-protected block function.
- Back set 35 mm.
- Choose between 22 mm (ST535) or 25 mm (ST535-25) wide forend plate.
- Encrypted communication OSDP AES-128.
- Power consumption: 32 mA at rest, max 255 mA for about 20 ms.
- Guarantees opening even if the door is subjected to pressure of up to 5 kg.
- Evacuation and re-entry are ensured together with STEP Exit emergency exit devices.
Status indicators for
- Bolt locked
- Bolt open
- Lock alarm
- Door open/closed
- Exit alarm
- Four programmable AUX outputs. Choose from the following:
- Vital open (door open)
- Vital closed (door closed and locked)
- Service
- Tamper
- Exit alarm
- Door alarm
- Timer failed
- Timer unlocked
- Timer locked
- Door auto (activation of door automation after unlocking)
Environment
- The control unit can handle temperatures from -5 to +70 degrees.
- The lock can withstand temperatures from -20 to +70 degrees.
Voltage: 10-30 V AC / DC.
Power consumption at rest: 69 mA at 24 V DC.
For dimensioning of the power supply, see details in the installation manual.
Substitute products
Accessories
STEP Safety strike plate/cover box ST9015
ST9015 is a patented safety strike plate/cover box.
ST9015 is a cover box, a fully mechanical version of the electric strikes STEP 40/90 Preload. The box is a perfect alternative to recieve a mechanical function, or while waiting for an electric strike to be inserted. The cover box fits in all frame recesses that are made for STEP 40/90 Preload and can be mounted together with exactly the same faceplates.
STEP Lead cover ST1283
STEP lead cover is made of stainless steel and fits both wooden, steel and aluminum doors.
The spring has a wide inner diameter of 12.8 mm which facilitates the passage of the cable.
STEP lead cover is adapted for our motor locks, solenoid locks and all STEP mechanical locks equipped with a microswith.
