Viking TDR-1 Time Delay Relay

Optimize timing and reliability across your security and access systems with the Viking Electronics TDR-1 Time Delay Relay. Designed for integrators and facilities teams, this compact relay makes it easy to add precise, repeatable delays for door strikes, gates, alarms and intercom-triggered events. Choose from eight selectable closure times (1–30 seconds) via simple DIP-switch programming, and confidently drive downstream devices with a 1 DPDT relay output. The TDR-1 accepts either dry contact closures or positive/negative logic inputs, so it fits a wide range of control panels and surveillance hardware without extra converters. An LED relay status indicator and screw terminal connections minimize commissioning time and help technicians diagnose system behavior quickly. TAA and NDAA compliant and built in the US, the TDR-1 is ideal for security, monitoring and access control deployments that demand dependable timing and straightforward integration. Add the Viking TDR-1 to your next intercom, gate or surveillance project to simplify timing control and improve system reliability.

• Programmable delays simplify timing: choose from eight preset intervals (1–30s) to match door release, gate or alarm timing without custom programming
• DPDT relay output delivers reliable switching for access control, intercoms and security devices, reducing installation complexity
• Accepts dry contact or positive/negative logic inputs for seamless integration with existing control panels and monitoring systems
• LED status indicator and DIP-switch setup provide fast commissioning and clear diagnostics for technicians in the field
• Screw-mount form factor with robust terminal connections speeds installation and maintenance in commercial and industrial environments