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Our 12-24 V AC/V DC digital timer is a reliable and highly accurate simple solution to many complex timing applications. A momentary contact closure begins the timing cycle (15, 30, 45 seconds or ∞) and latches a set of Form "C" dry contacts. The compact design makes it versatile for many applications.

For example, when used on an egress door, the supervised contacts can be set to either Fail Safe' or 'Fail Secure' mode. A built-in reset feature allows the circuit to reset after a single operation or a single door open and close (single passage) before timing expires. This prevents re-entry of any unauthorized personnel.
Unit of Measure

Specifications

Model Type

 N/A Latching/Timer Module UL Listed
Warranty1 N/A 1 y

Application

 N/A Access Housing

Dimensions

Overall Height

 N/A 1.3 in33 mm

Overall Width

 N/A 1.75 in44 mm

Overall Depth

 N/A 0.65 in16 mm

Dry Contacts

Alternating Current (AC) Voltage at 3 Ampere (A) Current

 N/A 125 V

Direct Current (DC) Voltage at 3 Ampere (A) Current

 N/A 30 V

Circuit Requirements

Alternating Current (AC) Voltage for ≤ 15 Ampere (A) Current

 N/A 12 to 24 V

Direct Current (DC) Voltage for ≤ 15 Ampere (A) Current

 N/A 12 to 24 V

Key Features

General Information

 N/A
  • Latching and/or timing module.
  • Can be used as a latching module for momentary buttons.
  • Supervised relay drops out when power is removed.
  • Digital timing circuit 15, 30, 45 seconds or ∞.
  • Easy to set modes.
  • LT-1UL converts a momentary button to a button with timing options.
  • Made in U.S.A.

Design

 N/A
  • Compact size (1.28" H x 1.74" W x 0.632" D) will fit inside Stopper Stations or in a handy box behind a flush mounted button.

Construction

 N/A
  • The LT-1UL Latching/Timer Module is compatible with all UL Listed Momentary Stopper® Station buttons. It can also be used with any UL Listed momentary button.

Installation

 N/A
  • Two modes 'Fail Safe' or 'Fail Secure' installation.
  • Supplied with double sided pad for installation.
  • All instructions are marked on the board for easy installation or field adjustment.

Electronics

 N/A
  • 12 to 24 volts AC/DC operation, Form "C" contact rating 3 A at 30 V DC 125 V AC.

Options

 N/A
  • Offers single reset operation when installed with N.C. contact, unit will automatically reset without waiting for the timer to expire.

Approvals and Warranty

Testing

 N/A LT-1UL has been tested and approved or listed by:
  • UL/cUL Listed to UL 294
  • 1 One year guarantee on electromechanical and electronic components.