CT1 GENERAL PURPOSE TIMER RELAY FORGE NT-CT1GENERAL PURPOSE DC TIMER The Nidac CT1 Series 3 Control Timer has 13 different operating modes and 4 timing ranges, 3 trigger modes, dualDC voltage opperation & a heavy duty relay output. FEATURES: 12 to 24V DC operation 13 operating modes: single shot (normal timer) single shot retriggerable dual edge dual edge retriggerable bistable (clutch) operation trigger extension maximum pulse minimum pulse hold off (door open too long) multivibrator, 1 sec on