Motor lock STEP 352

– increases intrusion security around the clock, in high-frequency door environments with door automation

STEP 352 is a motor lock developed with world-leading technology. It increases the intrusion security in perimeter locking and creates a secure locking around the clock, without you having to compromise with other requirements or the ease of use. The lock is adapted for high-frequency door environments with door automation and can handle several million openings! Certified in class 2A, 2B and 3 according to SSF 3522.

 

New series of revolutionary motor locks for safer doors around the clock

STEP 352 is part of the STEP 300 motor lock series. This motor lock is developed to ensure secure locking around the clock.

The lock is developed for high-frequency use and can handle several million openings, just as fast as an electric strike. In this way, it provides a unique opportunity to get higher security where it is needed, and thus get the right locking on vulnerable and important doors.

Combines all requirements

The lock can combine all requirements for evacuation, re-entry, fire resistance and door automation while at the same time giving the door environment a significantly higher intrusion security. STEP 352 is equipped with a strong hook bolt that really ensures that the door is locked.

  • Certified for intrusion protection in class 2A, 2B and 3 acc. to SSF 3522.
  • Certified for evacuation acc. to EN 179:2008.
  • Certified in fire technical class E/EI120 acc. to EN 14846:2008.

Opened via the cylinder follower

STEP 352 is opened via the cylinder follower, meaning you can unlock both the hook bolt and the automatic latch bolt with a key from the exterior side or via thumb turn/emergency exit device on the interior side. This motor lock can therefore with advantage be placed in an alarmed evacuation door.

With STEP 352, you can also equip the door with a pull handle on the exterior side.

Unique automatic latch bolt enables opening with door automation

STEP 352 is equipped with STEPs unique automatic latch bolt.

When the door opens electrically, the automatic latch bolt can fold which enables the door to be opened with door automation. Directly after the door is opened, the automatic latch bolt extends out and anchors itself in its original position, functioning again as a classic latch bolt.

STEP 352 is therefore the obvious choise in door environments where you want increased accessibility.

Choose whether the lock should fit a right-hung or left-hung door.

Very high operational reliability

The automatic latch bolt can handle a high preload of 80 kg, which ensures a very high operational reliability.

Manipulation protected block function

The lock has a double blocking, where the blocking of the hook bolt also is blocked by a latch. The latch position is read by an optical sensor so you can trust that it is really locked. The latch is completely protected from access and thus ensures protection against manipulation.

FreeDrive® minimizes wear during mechanical use

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.

Creates a safer environment

Many door environments are today equipped with latch locks that can handle evacuation, re-entry, fire and accessibility requirements, but at the price of low intrusion security. It is about exterior and interior perimeter protection doors in thousands of apartment buildings, hospitals, treatment centers and correctional facilities to name a few.

With the STEP 352 motor lock, you don’t have to compromise on intrusion security. Instead, you can ensure a combination of all the requirements above in one and the same lock, and also place it in a door environment that is used with high frequency.

Examples of door environments suitable for STEP 352

•  Outer and inner perimeter locking in private and public sector – secure staff and not just property. Keep security high around the clock.

•  Perimeter locking and ward doors in healthcare / hospitals – safer for patients and healthcare staff.

•  Entrance doors and doors to public areas in apartment buildings – safer and more pleasant environment for residents and visitors.

Control units with smart features

Choose from two different control units:

ST300C

  • ST300C uses encrypted communication OSDP AES-128 for locking, unlocking and status indications.
  • Handles one motor lock for connection to access system, alarm and central function.
  • Handles re-entry.

ST300C

ST500C

  • ST500C uses encrypted communication OSDP AES-128 for locking, unlocking and status indications.
  • Handles up to two motor locks for connection to access system, alarm and central function. These can be controlled individually or synchronized for connection to access control systems, alarms and essential function.
  • Handles re-entry.

 

Read more about STEP control units

Table of the control unit’s various functions

Click on the table to see it in a larger format.


Estimated start of delivery: Q4 2024

 

For door environments with evacuation requirements

STEP 352 is adapted for door environments with evacuation requirements according to EN 179:2008.

Combine with STEP Exit emergency exit devices to create a safer evacuation route with unparalleled ease of use and also maximize the benefits of the FreeDrive® technology.

Security: 2A, 2B and 3 acc. to SSF 3522
Fire approved: E/EI120
Certified according to: EN 179:2008
Functional description
  • The hook bolt and automatic latch bolt locks/unlocks electrically via opening signal from access control system, code lock, push button or similar.
  • The hook bolt and automatic latch bolt retracts mechanically via the the cylinder follower from the interior and exterior side.
  • The automatic latch bolt retracts mechanically via the lever handle from the interior and exterior side.
  • Normal passage occurs via opening signal from access control system, code lock, push button or similar from the interior and exterior side.
  • The automatic latch bolt is reversible to fit both right and left hung doors.
Certificates
  • Certified in Class 2A, 2B and 3 according to SSF 3522.
  • Certified for evacuation according to EN 179:2008.
  • Certified in fire technical class E/EI120 according EN 14846:2008.
  • Certified in Grade L for corrosion, temperatures and humidity, which corresponds to high requirements according to EN 14846.
Product characteristics
  • Unlocks in less than 0.1 second.
  • Modern bolt placement.
  • With STEPs unique automatic latch bolt.
  • FreeDrive® technology.
  • Manipulation-protected block function.
  • Back set 50 mm.
  • Encrypted communication OSDP AES-128.
  • Both control units can handle re-entry.
  • Evacuation and re-entry are ensured with STEP Exit emergency exit devices.
  • Designed to be used in high frequency doors.
Status indicators for
  • Bolt locked
  • Bolt open
  • Lock alarm
  • Door open/closed
  • Exit alarm
  • 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)
Article number E-nr Description
ST352-L Motor lock STEP 352. For left handed doors. Incl. ST352-L, 10 m connection cable ST0916H, drill protection ST1199, magnetic contact ST0910, screw and connector set ST1192.
ST352-R Motor lock STEP 352. For right handed doors. Incl. ST352-R, 10 m connection cable ST0916H, drill protection ST1199, magnetic contact ST0910, screw and connector set ST1192.
Power consumption STEP 352
  • Voltage: 10-30 V AC/DC.
  • Power consumption 1 lock: 69 mA at rest,
    when unlocking/locking 170 mA.
  • Power consumption 2 locks: 86,6 mA at rest,
    when unlocking/locking 385 mA.
Dimensional drawing STEP 352

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