STEP 352 Motor lock

Class 3 motor lock enhancing intrusion protection in perimeter security

STEP 352 motor lock is developed with world-leading technology to increase intrusion resistance in perimeter protection and create secure locking around the clock. It can be placed in door environments that are high-frequently used and combine intrusion protection, evacuation, re-entry, fire and accessibility requirements.

Increases intrusion security around the clock

Thanks to its sturdy hook bolt, which anchors securely into the frame, you can trust that the door is truly locked, not just latched. The hook bolt engages after every passage, even during daytime use, delivering uninterrupted intrusion protection around the clock.

Certified for intrusion protection in class 2A, 2B and 3 acc. to SSF 3522.

Handles a very high opening frequency

STEP 352 is built to withstand millions of openings, just as fast as an electric strike.

With unique FreeDrive^®

The FreeDrive^® technology disengages the motor and gearbox every time the lock is mechanically opened. This minimizes wear when using a thumb turn, key or emergency exit device. Locks with FreeDrive^® are therefore advantageously used together with STEP Exit in doors on evacuation routes, and can be used thousands of times every day.

Unique AutomaticLatchBolt^™ increases accessibility

Thanks to the unique AutomaticLatchBolt^™, STEP 352 can be used with door automation and ensure accessibility requirements. When the door is opened electrically, the AutomaticLatchBolt^™ can be fold and thus enables opening with door automation. Immediately after the door is opened, the AutomaticLatchBolt^™ extends out and anchors itself in its position, functioning again as a classic latch bolt.

The AutomaticLatchBolt^™ can handle a high preload pressure up to 80 kg which ensures very high operational reliability.

See an animation of the AutomaticLatchBolt^™ 's function

Equip the door with a pull handle on the outside

The AutomaticLatchBolt^™ allows you to equip the door with a pull handle on the outside, as emergency override can be done using a key from the outside, in combination with evacuation acc. To EN 179 from the inside. The lock can therefore with advantage be used in alarmed escape routes.

For door environments with fire requirements

Certified in fire technical class E/EI120 acc. to EN 14846.

For door environments with evacuation requirements

Certified for evacuation acc to. EN 179. Go to the Exitguide to find emergency devices for STEP 352.

Control unit with smart functions

Choose between the ST300C and ST500C control units. Both use encrypted communication OSDP AES-128 for locking, unlocking and status indications.

For RC3-classified security doors

The demand for security is increasing, and security doors and perimeter protection have become an essential part of planning for both residential and commercial buildings. Several manufacturers today offer solutions with STEP 300 series for RC3 security doors:

• Daloc S33/Y33
• Hellbergs HD 200 series and HD 300 series (single-door version)
• Maxidoor MD63 och MDD63 

For current specifications, contact the respective door manufacturer.

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.