|April 19, 2019|
DIN-rail 12 volt DC UPS controller, 5 amp with USB annunciation and battery health monitoring
12V battery backup system
Accepts power from your 12V power supply, charges an external 12 volt sealed lead acid battery, and switches the load to the battery when the power fails. Also measures the state of health of the battery and communicates status via USB.
DC UPS module keeps 12 volt equipment alive using an external sealed lead acid battery, acting as a battery back-up (BBU). Can supply USB signals to show the status..
This is a microprocessor controlled uninterruptible power supply control module. You can connect the module your 12V system and it will accurately charge an external 12 volt lead acid battery of your choice. Your equipment, for example, a small computer, video recorder, or alarm, is connected to the load output of the module. This equipment will run from the panel 12V power supply until the voltage drops below a preset voltage, the "N" voltage for example 11.0 volts depending on your needs. Then the external battery takes over. When the external battery drops below the "P" preset voltage (Between 10 volts and 3 volts depending on your requirements) the power is cut off. This cut off value selection can be determined by the equipment under power, or by avoiding damage to the battery.
These controllers use a voltage boosting charger to charge the auxiliary 12V battery from a range of input voltages down to as low as 10VDC (11.3V default).
The auxiliary battery is isolated from the main electrical system so that it will only operate the equipment attached to the load terminals of the controller. Thus non-essential equipment can be excluded from the battery back up.
The load terminals power your equipment from either the main 12V power or the auxiliary battery, acting as a battery backup (BBU). The switch position depends on the voltage levels of the two inputs.
The DC UPS controller also protects the auxiliary battery from being over-discharged.
One of the most popular applications is to keep communications from an elevator running when the main power drops out.