Charge Controllers

Charge Controllers

Model NC25A

24V NC25A Photo

The NC25A is a series regulator designed for alternative energy charging systems ranging in size from 0.1A to 25A. It is the ideal regulator for solar and permanent magnet generators (Windbugger^®).

The NC25A includes the charge divert feature, which allows you to use the excess charging source energy for other tasks, or for placing a load on the Windbugger to prevent over speed conditions. The divert connection is only activated after the charging source is making energy and the batteries are not using the energy.

This controller can be expanded to handle one or more banks of 100A charging sources. Multiple battery banks can be charged with the use of a standard battery charging isolator.

The NC25 is designed for long-term unattended operation, extensive transient voltage protection, high steady-state voltage protection, reverse polarity protection on battery connections, fully sealed electronics for 100% humidity operation. It is designed for "install and forget" operation.

Price $155

Features:

	5 year warranty
	Completely sealed electronics for marine or outdoor mounting
	Low battery voltage indicator
	Arc reduction circuitry to eliminate or reduce relay contact wear
	Charging efficiency better than 99.5% from 0.5A to 30A of charging current
	Efficiently charges batteries from 0 volts with full power
	25 amp charge capacity
	25 amp charge divert circuit. Stable divert circuitry prevents erratic relay switching if charge source voltage drops
	Diverts only when voltage and current are at usable levels
	Peak charge voltage adjustment with a range of 13.8V to 15.9V
	Charges with same high accuracy through battery isolators
	Consumes less than 5mA while charging, and at night, 2mA if you don't use the charge indicator
	Charges batteries at full power below the plate saturation point
	Batteries start charging at 0.005A of charge current
	Controller can withstand open circuit input spikes of 1500V/A and 140V continuous without damage
	Reverse polarity and transient voltage protection on the battery sense wires
	No power wasting sample periods
	Remote battery voltage sensing so the controller can be mounted anywhere between the charging source and the batteries

Models PV7, PV7D

PV7 Photo

The PV7 (single battery bank) and PV7D (dual battery banks) are cost effective shunting regulators designed for smaller 12V solar only applications with a maximum solar charging current of 7A.

All shunting type regulators must use a blocking diode in the charging path to block the battery voltage when the controller is regulating.

No heat sink is required because of the small amount of heat that is generated in the high efficiency solid state components.

Use with lead acid or gel battery technologies.

Price $90

Features:

	Cost effective charge controller for photovoltaic charging sources
	Reverse polarity protected (fuse)
	Hermetically sealed / potted electronics for use in high humidity and salt air environments
	High efficiency components allows packaging in very small enclosure (1.5" x 2")
	Controller's circuitry eliminates back flow of current into solar panels during non-charging periods
	Charging indicator displays when the controller is passing charging current to the battery
	Expands easily into a high amperage controller. Up to 500A charging capacity with a charging efficiency increase to 99.95%

Model PV14

The PV14 is a cost effective shunting regulator designed for smaller 12V solar only applications with a maximum solar charging current of 14V.

All shunting type regulators must use a blocking diode in the charging path to block the battery voltage when the controller is regulating.

The heat sink is used to dissipate heat generated by the high efficiency blocking diode.

Price $110

Features:

	100% waterproof electronics for mounting in a marine environment
	Oversize heat sink to keep internal components cool
	Charging indicator
	14 amp charging capacity for small to intermediate size solar arrays
	Expandable to handle up to 100A of charging current and multiple charging sources
	Up to 60 to 1000A charge divert option
	Consume less than 5mA while charging and only 2.6mA at night
	Built-in isolation prevents nighttime back flow of electricity from your batteries to the solar panel(s)
	Charges a zero volt battery with full charge current
	Completely silent operation