Securitron DT-7 Prime Time Digital Timer

The Securitron DT7 Prime Time is a programmable 7-day digital timer designed to automate electric door locks and access control equipment according to daily or weekly schedules. Operating on 12-24VAC or VDC, it features a 10A double-pole, double-throw (DPDT) relay, 12 programmable switching events, and selectable toggle or pulse operation. Its First Man In function delays scheduled unlocking until authorized entry occurs, while an optional AA backup battery preserves programmed settings during power interruptions. The DT7 supports standalone operation or integration with compatible access control systems.

Securitron DT7 Prime Time 7-Day Programmable Digital Timer with 10A DPDT Relay

The Securitron DT7 Prime Time Digital Timer automates the locking and unlocking of electrically secured doors according to programmed daily or weekly schedules. Its 7-day scheduling capability supports up to 12 switching events, allowing facilities to establish access periods for business hours, employee entry, and after-hours security. The timer operates independently or integrates with compatible electronic access control equipment, including Securitron DK-26 digital keypads and electromagnetic locking systems. Its First Man In function prevents a scheduled unlocking event from releasing a secured entrance until an authorized user activates an external switch, supporting security procedures during holidays and irregular building occupancy.

The DT7 operates on 12-24VAC or VDC power and controls connected equipment through a 10A double-pole, double-throw (DPDT) relay. Manufacturer specifications list a nominal current draw of 170mA, while the installation instructions specify approximately 160mA with the relay energized and 10mA when de-energized. The relay supports toggle operation and two selectable pulse modes, allowing scheduled switching or momentary activation of compatible electrical equipment. Its 12 programmable events can be assigned to individual days or recurring day blocks, including Monday through Friday, Monday through Saturday, and the full seven-day week. The DPDT configuration provides two independently wired contact sets that change state together according to the programmed schedule.

The Securitron DT7 measures approximately 7 inches long, 3.187 inches wide, and 2.5 inches deep and incorporates a digital LCD module with push-button programming controls. Installers can configure the current time, day of the week, switching schedules, relay operating mode, and manual overrides directly through the timer interface. An optional AA alkaline battery preserves the display module's programming memory during power interruptions, with manufacturer literature indicating approximately five years of backup battery service. The timer operates within an ambient temperature range of 32 F to 113 F (0 C to 45 C). Its compact board-level configuration supports installation within suitable access control cabinets and protected electrical enclosures.

The Securitron DT7 supports scheduled door locking, automatic unlocking, access control activation, and timed security equipment operation in offices, retail facilities, educational buildings, and commercial properties. The First Man In feature allows a facility to maintain locked doors beyond the scheduled opening time until an authorized employee arrives, reducing the need to manually modify schedules during holidays. Manual relay override and pulse programming provide additional control for temporary access and switching applications. The DT7 is a timer and relay controller rather than a standalone door lock or complete access control system; compatible locking hardware, power supplies, and activation devices are selected separately. Installation must maintain required emergency egress functions and comply with applicable building and fire safety regulations. The timer is covered by the Securitron MagnaCare lifetime replacement, no-fault warranty.