Electric strike STEP 90 Preload

A fire resistant electric strike with Preload technology and tamper protection

Electric strike STEP 40 Preload has received upgraded performance at several points. The optimization of the product series provides the following performance.

  • 250kg Preload technology for a reliable function.
  • 1200kg breaking strength
  • Improved weather protection
  • Factory tested to 1,500,000 cycles
  • Protection against tampering

STEP 90 Preload is a small but strong electric strike with minimal measurements equipped with patented Preload technology.

CE-marked according to SS-EN 14846: 2008 in fire resistance class E / EI120.

Reliability with minimal dimensions

The electric strike provides a very high performance and is tested to withstand a high opening frequency. Break protection is rated at 900 kg and installation can be secured with rear-edge screws, in addition to the faceplate.

Available in a adjustable configuration so that function can be easily selected and changed during installation. The electric strike can be quickly changed from fail secure to fail safe function. That change provides greater flexibility and lower handling costs.

The Preload series now has optimized performance with HPR® technology

Electric strikes in the Preload series have since the launch in 2012 become the obvious choice and thus Sweden’s most popular Electric strike. With experience from hundreds of thousands of products sold, StepLock has now taken the product series another big step forward with the new Preload HPR®. With its fine material selection and these optimizations, STEP 40 Preload has a performance in its own class.

Electric strikes is the product in electric locking that is used most due to its excellent properties in doors that are used frequently. In addition, all wiring can often be placed in a frame for easier installation.

An Electric strike together with a mechanical lock is scalable so that you choose different combinations of Electric strikes and mechanical locks to fulfill the functions and conditions of the door. The right mechanical lock and the right Electric strike can fulfill everything from the simplest function to the most advanced requirements on the door, where the Electric strike, the door lock and the door are made for exactly what it is supposed to handle. The right function with the highest operational reliability without paying for something you do not need.

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 90 Preload is equipped with STEP’s patented Preload technology that allows the door to be unlocked even if subjected to pressures of up to 250 kg.

  • Seals and pressure differences– The Preload function enables the door to always be unlocked even when the door lock is tensioned against the electric strike.
  • Door automation– The Preload function combined with rapid unlocking means that the door opens quickly and without risk of becoming stuck.
  • Evacuation door– The Preload function ensures that a fire alarm can release the lock, despite pressure against the door by crowds, seals, pressure differences or warped doors.
  • Manipulation protection – The Preload function Resists influences in the form of manipulation and external violence.
Aesthetic mount and easy installation

STEP 90 Preload is the Scandinavian market’s smallest fire-approved electric strike. Through its small dimensions, the STEP 90 Preload can be mounted neatly and easily in virtually any door environment.

Wide range of faceplates in stainless steel

STEP 90 Preload has the same faceplate assortment as STEP 40 Preload, STEP 48 PreloadSTEP 98 Preload and STEP 90 Release.

 

Find the right faceplate for this product
Technical data STEP 90 Preload
  • Durability: Grade X per EN 14846.
  • Corrosion: Grade M per EN 14846.
  • Security: Grade 3 per EN 14846.
  • Security electrical manipulation: Grade 1 per EN 14846.
  • Tested and certified for fire resistance up to Class F (E / EI 120) in accordance with SS-EN 14846: 2008.
  • Microswitch unipolar changeover, max. 30 V DC, 1A.
  • Built-in protective diode.
  • Detection indication that the door is closed/open (applies to the products with bolt contact).
  • Break resistance 12 kN (≈ 1200 kg).
  • Ensures opening despite proload up to 2,5 kN (≈ 250 kg) in fail secure and fail safe function.
  • Anti-hammer secured.
  • Reversible to fit right- and left hung doors.
  • Screw holes for angled screws at rear edge of electric strike.
Article number E-nr Description
ST90 Electric strike STEP 90 Preload. Fail secure function 24 V DC.
ST90-12 Electric strike STEP 90 Preload. Fail secure function 12 V DC.
ST900 Electric strike STEP 90 Preload. Fail secure function 24 V DC, including bolt contact.
ST900-12 Electric strike STEP 90 Preload. Fail secure function 12 V DC, including bolt contact.
ST91 Electric strike STEP 90 Preload. Fail safe function 24 V DC.
ST91-12 Electric strike STEP 90 Preload. Fail safe function 12 V DC.
ST901 Electric strike STEP 90 Preload. Fail safe function 24 V DC, including bolt contact.
ST901-12 Electric strike STEP 90 Preload. Fail safe function 12 V DC, including bolt contact.
ST95 Electric strike STEP 90 Preload. Adjustable function 24 V DC.
ST95-12 Electric strike STEP 90 Preload. Adjustable function 12 V DC.
ST905 Electric strike STEP 90 Preload. Adjustable function 24 V DC, including bolt contact.
ST905-12 Electric strike STEP 90 Preload. Adjustable function 24 V DC, including bolt contact.
Power consumption STEP 90 Preload 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 90 Preload with and without bolt contact

Dimensional drawing STEP 90 Preload

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