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CT1 Battery Cut-out TimerDiscontinued product - for information only
The CT1 cut-off timer was designed for use with vehicle installed equipment where the equipment is required to be operated even while the vehicle ignition key is removed. Typical applications include two-way radios, in-car mobile (cellular) telephones, flashing or rotating warning lights, headlights or spotlights, computers, GPS receivers, or any other equipment which would be powered directly from the vehicle battery. The CT1 is also useful for solar powered sites to prevent damaging over-discharge of the batteries. In stand-by mode the LED on the CT1 shows steady RED. In operation the CT1 cut-off timer monitors it's control input line which would normally be connected to the vehicle ignition switch. While the ignition switch is on the LED on the CT1 shows steady GREEN and the output is also switched on, providing the battery voltage is above the low voltage cut-out point. When the ignition switch is turned off the CT1 starts it's cut-off timer and the LED flashes GREEN. After the end of the selected period the CT1 output is turned off and the LED changes back to steady RED (stand-by mode). If at any time the battery voltage falls below the pre-set low voltage cut-out point then the LED on the CT1 flashes RED>. If the ignition switch is off when the battery voltage rises to above the pre-set high voltage cut-in point then the CT1 will return to stand-by mode and the LED will show steady RED. If the ignition switch is on when the battery voltage rises to above the pre-set high voltage cut-in point then the LED will rapidly flash alternate RED/GREEN for the period of time determined by the cut-in timer. At the end of this period the CT1 output will be switched on and the LED will show steady GREEN.
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| Supply voltage: | Nominally 13.8volts DC, ~250mA max (output relay on), ~20mA idle |
| Connections: | Power, Ground, Control (eg. Ignition switch), Relay contact in, Relay contact out. Matching 3 way connector & pins supplied. |
| Selectable timer periods: |
0 minute to 4 Hours 15 minutes in 1 minute steps |
| Cut-out voltage: | Nominally 11.5 volts - can be pre-programmed to your special requirements or field programmable |
| Cut-in voltage: | Nominally 12.5 volts - can be pre-programmed to your special requirements or field programmable |
| Cut-in timer: | 0 to 155 seconds in 5 second steps |
| Switching capability: |
Normally open isolated relay contact rated at 30 Amps (Normally closed relay contact is available on the PCB) |
| Size: | 3.4in Wide x 2.6in High
x 1.2in Deep (4.3in Wide over mounting points, 3.8in between mounting
holes) 87mm Wide x 67mm High x 31mm Deep (108mm Wide over mounting points, 95mm between mounting holes) |
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