These SES Flexcharge NC ultra high efficiency controllers are designed for the PV user who require the highest levels of system dependability, lowest battery watering maintenance, longest life from flooded lead acid and gel battery technologies. These dependable controllers are in use from the Arctic to Antarctica and all over the world in between, so you can be assured they will work for you.

Available standard in a 12 amp and a 30 amp model. Factory default is 12 volt DC, can be customer configured to 24 volt with the cut of a jumper wire.

As with all Flexcharge controllers The NC12L12 Controllers are designed using the latest proven surface mount technology components. Low standby power consumption is achieved in these controllers with a 6mA typical parasitic current. Each controller is tested by the manufacturer for proper operation prior to being placed into its shipping container.

The complexity and quantity of status indicators were intentionally kept to a minimum on the NC12L12. The two dual color LEDs smartly show when the batteries are being charged by the green section of the top LED. When the controller is regulating the RED section of the top LED shows RED. When the load is ON the lower LED will glow Green, and when the controller is in Low Voltage Disconnect by the lower LED will glow RED. If using as a load controller for lighting the dusk feature utilizes circuitry that is designed to ignore numerous types of false inputs from stray light sources.

The NC12L12 use the Flexcharge Charge method for superior battery operation. They switch power to the Positive Side of the Load and the Battery Charging connections. This allows the user to connect all the system grounds to one location rather than running a separate wire for PV-, Load- and Battery- to the controller, a feature that is required for UL approval.

One small but convenient feature not found on other brand controllers but is included with the NC12L12 is the Manual Low Voltage Disconnect RESET Circuit. This function is also used to test the load circuitry after the installation is completed, and / or when The Low Battery Disconnect circuitry is active. To activate the RESET circuit pass a small magnet over the RED Low Battery Symbol. The load will also illuminate briefly indicating that the Load Circuitry and Low Battery Voltage Disconnect circuit is functioning properly.

Standard Features:

• Waterproof packaging.
• Reverse polarity protected on battery wires.
• Easy to read LED indicators clearly display the controller's status.
• High efficiency charging circuitry. Insertion Loss resistance of only 0.008 Ohms on the 30A model.
• Field select for 12V or 24V operation. Shipped ready for 12V systems, simply cut a wire jumper for 24V.
• Order with Load ON at Dusk, OFF at Dawn operation, or Load always ON.
• Low battery voltage Load Disconnect (LVD) and automatic LVD reset at dawn (A SES Flexcharge Patented feature).
• Manual Load Test / LVD Reset magnetically operated switch located under the load status indicator. Easily reset the LVD circuit after installation and test the controller's load circuitry.
• Delayed Low Battery Disconnect to prevent disconnect during momentarily high load currents.
• Delayed Dawn sensing circuit to prevent load switching during momentarily bright light levels (i.e. Lightning flashes, vehicle lights).
• Easy to use terminal block for wiring. Dry contacts.
• Small enclosure 3"H x 3"W x 1.5"D + mounting feet.
• Made in the USA.

Special Order Options (contact us for pricing and to order with these options):

• Temperature Compensation.
• Integral Digital Load Timer. Use with Dusk to Dawn Model. Starts timer at dusk then turns the load OFF after the selected time has elapsed. Set Run times up to 7.5 hour in 1/2; hour increments or 15 hours in or 1 hour increments, includes Dawn Override.
• Integral Load Flasher circuitry. Order flash repeat times from 0.25 sec to 10 sec with ON-Times from 0.1 sec to 5 sec.
• Voltage sense wires allowing the controller to be installed anywhere between the PV panels and the batteries.

Works well with the Programmable Timer (PRGTMR12V).