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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.

STEP 8 Utanpåliggande lås

STEP 8 monterad i glasdörr

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.

StepLock Product sheet STEP 8

STEP 8_installation instructions 2021 version 1

STEP 8_drill template IMPORTANT TO PRINT IN FULL SCALE

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: 85 mAh.
  • 12 V DC: 170 mAh.

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

Max 300 mA at 24 V DC / 600 mA at 12 V DC for 0.2 seconds to ensure the need for locking or unlocking in special events.

For the dimensioning of the power supply, see the installation manual.

Wiring diagram STEP 8

Dimensional drawing STEP 8 with and without angle bracket

Accessories

Alt
Glass fitting
Article number ST870

Adapted for installation on glass doors.

Alt
Hook
Article number ST864

Hook for STEP 8.

Alt
Mounting plate
Article number ST863

Mounting plate for STEP 8.

Alt
Angle bracket with house
Article number ST862

Adapted for doors where the electric strike will be mounted where the frame is in line with the door leaf.

Alt
Angle bracket with house
Article number ST860

Adapted for doors where the electric strike will be mounted where the frame is in line with the door leaf.

Alt
Angle bracket
Article number ST861

Angle bracket adapted for sliding doors.

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