BIRA HARTTE S12R Electric Strike, Series S, 12V DC, Reversible

Securing a doorway involves more than just a lock; it requires an actuator that releases cleanly when called upon. The BIRA HARTTE S12R electric strike answers that need with a 12V DC fail-safe mechanism that unlocks when power is interrupted, allowing seamless integration with intercoms, card readers, and panic bars. This strike from the S Series delivers a reassuring 300 kg holding force and is built for high-traffic environments, rated to 300,000 cycles.

Who is it for

Professional installers, security system integrators, and facility managers upgrading existing door hardware will appreciate the S12R's universal handing. It fits both left- and right-hinged doors, and its mortise design recesses into the door frame for a clean, low-profile finish. Whether used in a small office or a busy back entrance, it provides dependable access control.

Main features

• Fail-safe operation – unlocks on power loss, enhancing emergency exit safety
• High security – 300 kg static holding force deters forced entry
• Reversible – adjust the activation lever for left- or right-hand installations
• Adjustable latch – a 3mm adjustment accommodates varying latch positions
• Durable design – zinc alloy and steel construction handles repeated daily use
• Quiet and efficient – draws only 400 mA at 12V DC (4.8 W)

Specifications

• Product type: Electric strike
• Operating mode: Fail-safe (fail-unlocked)
• Nominal voltage: 12V DC
• Current draw: 400 mA
• Power consumption: 4.8 W
• Holding force: 300 kg (3000 N)
• Faceplate dimensions (WxHxD): 160 x 25 x 3 mm
• Body dimensions (WxHxD): 67 x 28 x 21 mm
• Mounting: Mortise (recessed)
• Handing: Universal (left/right reversible)
• Adjustable latch: 3 mm
• Operating temperature: -10°C to +50°C
• Material: Zinc alloy / steel
• Finish: Silver/Grey
• Series: S Series

Tips

When installing, ensure the strike faceplate is flush with the door frame to avoid binding. Use a 12V DC power supply that is rated for the current draw, and consider a separate power source for the controller to maintain fail-safe behavior during power outages. For retrofit projects, verify the existing cutout dimensions against the faceplate size.