Surface mounted lock STEP 8

A surface mounted lock in minimal design

STEP 8 is a perfect solution where a lock is to be installed afterwards or where you can not or do not want to install a recessed lock, for example, due to space considerations, in doors where there is asbestos or in doors with high cultural value.

The lock can be used as a replacement for magnetic locks and is combined with door automation and/or fire alarms. It can be mounted vertically or horizontally on both single and double doors.

STEP’s unique Preload-technology combined with minimal measurements and stainless steel provides STEP 8 with a reliable and stylish design.

Quick and easy assembly

The installation is very easy. No changes need to be made to the existing recess.

STEP’s patented Preload-technology

A common problem is that a door is subjected to pressure, for example, because the door is a little skew or that gravel or snow has gathered at the doorstep. STEP 8 Secure is equipped with STEP’s patented Preload technology that allows the door to unlock, even if subjected to pressures
of up to 150 kg.

Wide range of applications

STEP 8 consists of two sturdy parts, a hook mounted on the door leaf and and an electrical strike in a bracket mounted directly on the underside of the frame.

Depending on where STEP 8 is supposed to be mounted there are several different accessiories too choose from.

Fail safe function for doors with evacuation requirements

With the fail safe function, STEP 8 is used for evacuation doors with evacuation terminals or emergency opening buttons. The lock can withstand a preload of up to 150 kg, which allows a safe evacuation. STEP 8 is also available with fail secure function.

Technical data STEP 8
  • Durability: Grade X per EN 14846.
  • Corrosion: Grade M per EN 14846.
  • Fail safe function adapted to requirements according to EN 13637.
  • Microswitch unipolar changeover, max. 30 V DC, 1A.
  • Built-in protective diode.
  • Built-in indication for detection of whether the door is closed/open (bolt contact).
  • Break resistance 9 kN (≈ 900 kg).
  • Ensures opening despite preload up to 1,5 kN (≈ 150 kg) in fail secure and fail safe functions.
  • Anti-hammer secured.
  • Reversible to fit right- and left hung doors.
  • Adapted for sliding doors.
Article number E-nr Description
ST880 Surface mounted lock STEP 8. Fail secure function 24 V DC. Incl. hook.
ST880-12 Surface mounted lock STEP 8. Fail secure function 12 V DC. Incl. hook.
ST881 Surface mounted lock STEP 8. Fail safe function 24 V DC. Incl. hook.
ST881-12 Surface mounted lock STEP 8. Fail safe function 12 V DC. Incl. hook.
ST890 Surface mounted lock STEP 8. Fail secure function 24 V DC. Incl. hook and angle bracket with house.
ST890-12 Surface mounted lock STEP 8. Fail secure function 12 V DC. Incl. hook and angle bracket with house.
ST891 Surface mounted lock STEP 8. Fail safe function 24 V DC. Incl. hook and angle bracket with house.
ST891-12 Surface mounted lock STEP 8. Fail safe function 12 V DC. Incl. hook and angle bracket with house.
Power consumption STEP 8 with fail secure and fail safe functions
  • 24 V DC + 15 % – 10 %. 110 mAh / max 300 mA.
  • 12 V DC + 15 % – 10 %. 220 mAh / max 600 mA.

Power consumption 0 mA for rotating cam at rest (fail secure = locked, fail safe = unlocked)

Wiring diagram STEP 8

Dimensional drawing STEP 8 with and without angle bracket

Newsletter

Sign up for our newsletter to be the first to receive new information about our products and current events.

You're using an old browser

Old browsers only have partial support for new technology and doesn't give the website an honset chance to live up to its fully potential. You can easily download an other web browser that works better. Here is onyl a few modern browsers that works great!

Update my browser

I'd like to continue anyway