Electric strike STEP 28E Secure

A sash lock electric strike for door automation

STEP 28E Secure is a sash lock electric strike that makes it possible to combine requirements for security, fire safety and evacuation with automatic door openers or pull handles. The electric strike is used together with a sash lock, which provide good protection against burglary attempts while a door retaining function is always retained with a lever handle latch bolt.

Approved fire resistance class E/EI 60.

Electrical locking for doors with many requirements

STEP 28E Secure is used in electrical locking where door automation or pull handles are to be combined with requirements for high security and/or fire containment. The electric strike is used together with a sash lock, which provide good protection against burglary attempts while a door retaining function is always retained with a lever handle latch bolt.

Emergency evacuation function and fire safety requirements in fail secure and fail safe functions

STEP 28E Secure is often fitted with emergency evacuation locks according to EN 179 where fire safety requirements and evacuation are to be combined with automatic door openers. STEP 28E Secure also allows emergency opening via emergency open buttons at the fire cell limit.

Equipped with STEP’s Preload technology

STEP 28E Secure is equipped with STEP’s Preload technology that allows the door to unlock, even if subjected to pressures of up to 500 kg.

Wide range of faceplates

STEP 28E Secure has a wide range of stainless steel faceplates to choose from.

Find the right faceplate for this product
Technical data STEP 28E Secure
  • Durability: Grade Y per EN 14846.
  • Corrosion: Grade M per EN 14846.
  • Security: Grade 7 per EN 14846.
  • Security electrical manipulation: Grade 3 (fail secure) Grade 1 (fail safe) per EN 14846.
  • Approved fire resistance class E/EI 60.
  • Microswitch unipolar changeover, max. 30 V DC, 1 A.
  • Built-in detection indication that the door is closed/open (bolt contact) and locked/unlocked (barrier contact) for connection to access control systems, alarm system, etc.
  • Break resistance over 15 kN (≈ 1500 kg).
  • Ensures opening despite preload up to 5 kN (≈ 500 kg) in fail secure and fail safe functions.
  • Anti-hammer secured.
  • Including 5 m halogen-free connection cable.
Article number E-nr Description
ST280-AE 7 mm Electric strike STEP 28E Secure. Fail secure function 24 V DC, left for Connect.Incl. 5 m connection cable.
ST280-AE 7 mm 10 M Electric strike STEP 28E Secure. Fail secure function 24 V DC, left for Connect. Incl. 10 m connection cable.
ST280-AE 9 mm Electric strike STEP 28E Secure. Fail secure function 24 V DC, left for Connect. Incl. 5 m connection cable.
ST280-AE 9 mm 10 M Electric strike STEP 28E Secure. Fail secure function 24 V DC, left for Connect. Incl. 10 m connection cable.
ST280-AE12 7 mm Electric strike STEP 28E Secure. Fail secure function 12 V DC, left for Connect. Incl. 5 m connection cable.
ST280-AE12 9 mm Electric strike STEP 28E Secure. Fail secure function 12 V DC, left for Connect. Incl. 5 m connection cable.
ST280-BE 7 mm Electric strike STEP 28E Secure. Fail secure function 24 V DC, right for Connect. Incl. 5 m connection cable.
ST280-BE 7 mm 10 M Electric strike STEP 28E Secure. Fail secure function 24 V DC, right for Connect. Incl. 10 m connection cable.
ST280-BE 9 mm Electric strike STEP 28E Secure. Fail secure function 24 V DC, right for Connect. Incl. 5 m connection cable.
ST280-BE 9 mm 10 M Electric strike STEP 28E Secure. Fail secure function 24 V DC, right for Connect. Incl. 10 m connection cable.
ST280-BE12 7 mm Electric strike STEP 28E Secure. Fail secure function 12 V DC, right for Connect. Incl. 5 m connection cable.
ST280-BE12 9 mm Electric strike STEP 28E Secure. Fail secure function 12 V DC, right for Connect. Incl. 5 m connection cable.
ST280-CE 10 mm Electric strike STEP 28E Secure. Fail secure function 24 V DC, left for Modul. Incl. 5 m connection cable.
ST280-CE 12 mm Electric strike STEP 28E Secure. Fail secure function 24 V DC, left for Modul. Incl. 5 m connection cable.
ST280-CE12 10 mm Electric strike STEP 28E Secure. Fail secure function 12 V DC, left for Modul. Incl. 5 m connection cable.
ST280-CE12 12 mm Electric strike STEP 28E Secure. Fail secure function 12 V DC, left for Modul. Incl. 5 m connection cable.
ST280-DE 10 mm Electric strike STEP 28E Secure. Fail secure function 24 V DC, right for Modul. Incl. 5 m connection cable.
ST280-DE 12 mm Electric strike STEP 28E Secure. Fail secure function 24 V DC, right for Modul. Incl. 5 m connection cable.
ST280-DE12 10 mm Electric strike STEP 28E Secure. Fail secure function 12 V DC, right for Modul. Incl. 5 m connection cable.
ST280-DE12 12 mm Electric strike STEP 28E Secure. Fail secure function 12 V DC, right for Modul. Incl. 5 m connection cable.
ST281-AE 7 mm Electric strike STEP 28E Secure. Fail safe function 24 V DC, left for Connect. Incl. 5 m connection cable.
ST281-AE 9 mm Electric strike STEP 28E Secure. Fail safe function 24 V DC, left for Connect.Incl. 5 m connection cable.
ST281-AE12 7 mm Electric strike STEP 28E Secure. Fail safe function 12 V DC, left for Connect. Incl. 5 m connection cable.
ST281-AE12 9 mm Electric strike STEP 28E Secure. Fail safe function 12 V DC, left for Connect. Incl. 5 m connection cable.
ST281-BE 7 mm Electric strike STEP 28E Secure. Fail safe function 24 V DC, right for Connect. Incl. 5 m connection cable.
ST281-BE 9 mm Electric strike STEP 28E Secure. Fail safe function 24 V DC, right for Connect.Incl. 5 m connection cable.
ST281-BE12 7 mm Electric strike STEP 28E Secure. Fail safe function 12 V DC, right for Connect. Incl. 5 m connection cable.
ST281-BE12 9 mm Electric strike STEP 28E Secure. Fail safe function 12 V DC, right for Connect. Incl. 5 m connection cable.
ST281-CE 10 mm Electric strike STEP 28E Secure. Fail safe function 24 V DC, left for Modul. Incl. 5 m connection cable.
ST281-CE 12 mm Electric strike STEP 28E Secure. Fail safe function 24 V DC, left for Modul. Incl. 5 m connection cable.
ST281-CE12 10 mm Electric strike STEP 28E Secure. Fail safe function 12 V DC, left for Modul. Incl. 5 m connection cable.
ST281-CE12 12 mm Electric strike STEP 28E Secure. Fail safe function 12 V DC, left for Modul. Incl. 5 m connection cable.
ST281-DE 10 mm Electric strike STEP 28E Secure. Fail safe function 24 V DC, right for Modul. Incl. 5 m connection cable.
ST281-DE 12 mm Electric strike STEP 28E Secure. Fail safe function 24 V DC, right for Modul. Incl. 5 m connection cable.
ST281-DE12 10 mm Electric strike STEP 28E Secure. Fail safe function 12 V DC, right for Modul. Incl. 5 m connection cable.
ST281-DE12 12 mm Electric strike STEP 28E Secure. Fail safe function12 V DC, right for Modul. Incl. 5 m connection cable.
Power consumption STEP 28E Secure
Fail secure function
  • 24 V DC + 15 % – 10 %. 500 mA unlocked.
  • 12 V DC + 15 % – 10 %. 1000 mA unlocked.
Fail safe function
  • 24 V DC + 15 % – 10 %. 267 mA max, 126 mA locked.
  • 12 V DC + 15 % – 10 %. 534 mA max, 98 mA locked.

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

Wiring diagram STEP 28E Secure

Dimensional drawing STEP 28E Secure

Accessories

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