Electric Drop Bolt Lock Digitalas DB-550B

Electric Drop Bolt Lock Digitalas DB-550B

DB-550B – a reliable and versatile electric rod lock designed to ensure the highest level of door security and convenient operation. This model can be either Fail Safe or Fail Secure type – making it suitable for various security systems where reliable operation is important even in the event of a power failure. Due to its sturdy metal construction and stainless steel bolt, the lock is highly resistant to wear, impact, and tampering attempts.

Main features:

Operating voltage: DC12V–DC24V

Current (DC12V): A – 110 mA ±10% (Fail Safe), B – 150 mA ±10% (Fail Secure)

Coil: Pure copper, ultra-low temperature, suitable for continuous operation

Delay time settings: 0 / 3 / 6 sec.

Automatic locking: if the door is not opened within 6 sec.

Reverse current protection: yes

Bolt: SUS304 solid stainless steel – resistant to cutting and impact

LED indication: clearly shows the unlocking status

Mounting hole size: 177 × 26 mm (depth ≥ 35 mm)

Decorative plate: 180 × 30 × 0.7 mm

Front plate: 175 × 25 × 3 mm

Warranty: 2 years

Advantages:

Patented product – highest quality manufacturing standards

Fully metal mechanical construction – durable and resistant to environmental effects

Wide voltage range, compatible with security, building management, and fire systems

Automatic locking and door sensor function enhance security

Tamper-resistant ("tamper lock")

Easy installation and connection (2, 5, or 8 wire options)

Suitable for:

Access control systems

Office, apartment, warehouse, and technical room doors

Indoor and outdoor installation (depending on protection class)

Installation instructions  EN