COMPANY HEADER
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.
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LT-1 STI Digital Timers with Latching Feature

LT-1, STI Digital Timer with Latching Feature
LT-1UL STI Digital Timers with Latching Feature

LT-1UL, STI Digital Timer with Latching Feature
Description N/A 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.
Model Type N/A Latching/Timer Module N/A Latching/Timer Module UL Listed
Overall Height N/A 1.3 in33 mm
Overall Width N/A 1.75 in44 mm
Overall Depth N/A 0.65 in16 mm
Warranty1 N/A 1 y
Application N/A Access Housing
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
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
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 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.
Testing N/A 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.