Electric strike ORNO SDTRINV1024 symmetric with block and hidden memory 10–24V AC/DC

The ORNO SDTRINV1024 electric strike is a symmetric locking device designed for integration into access control systems. It features an integrated blocking function and hidden memory that support reliable latch operation in installations where reversible or bidirectional latch engagement is required. The unit accepts a wide supply range of 10–24V AC/DC, making it compatible with common intercoms, entrance control panels and security systems used in residential and commercial settings.

Advantages

This electric strike offers symmetric construction for reversible latch operation, reducing the need to stock multiple variants for different door handing. The built-in blocking mechanism increases security by preventing unintended latch retraction, while the hidden memory preserves the strike state during brief power fluctuations to maintain consistent access behavior. The broad 10–24V AC/DC compatibility simplifies integration with a range of power supplies and control equipment.

Suitable for

• Residential entrance doors connected to intercom or access panels
• Commercial doors in offices, retail premises and service buildings
• Door installations requiring reversible latch operation
• Security systems where fail-safe memory of latch state is beneficial

Key specifications

• Symmetric strike construction for reversible latch engagement
• Integrated mechanical blocking function
• Hidden memory feature to preserve strike state during brief power interruptions
• Operating voltage range: 10–24V AC or DC
• Designed for flush or surface mounting in standard door frames (check frame compatibility before installation)

How to use

Install the electric strike in the door frame at the latch position following the door manufacturer's and local electrical codes. Connect supply and control wiring to the designated input terminals, observing correct polarity for DC operation when applicable and ensuring the voltage source is within the 10–24V AC/DC range. Verify the mechanical alignment between latch and strike so the latch engages smoothly in both directions. Test the blocking function and hidden memory behavior by operating the access control system and simulating brief power interruptions to confirm consistent performance.

Usage recommendations

Confirm frame and latch dimensions before installation and use appropriate mounting hardware. Use a regulated power source within the specified voltage range and incorporate fuses or circuit protection as required. Periodically inspect mechanical alignment and clean the strike area to prevent debris buildup that could affect latch engagement.