SP-3VES

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The SP-3V, SP-3, & SPS-3 are heavy duty self contained, efficient clean with linear performance offline switching power supplies that are selectable between 12 VDC at 3 Amps, and 24 VDC at 1.5 Amps. With the universal AC input, these supplies may be connected anywhere in the world with no plug-in transformer or any alterations. These power supplies have exceptional brown out capability with operation down to 60 VAC. The SP-3V has an adjustable output with no battery charger and is intended to be used where no standby power is required. The extensive filtering system provides a very clean DC output with linear performance. All of the supplies are power limited and thermally protected. All output faults are self restoring. The SP-3 and SPS-3 both have a precision lead acid battery(s) charger that obtains maximum battery life while providing a 12 VDC or 24 VDC uninterruptible power supply. The SP-3 & SPS-3 are protected against Battery(s) reversal, shorting or overloading. Before connecting load and battery(s), set 12v/24v selector jumpers to the desired voltage. Caution, damage will occur if jumpers are moved with DC output load or Battery connected. Confirm proper voltage before connecting devices. The SPS-3 has the additional supervisory features of a set of form "C" relay contacts that indicates AC power status, and a special electronic circuit that limits the total output current even with the battery to comply with class II power limiting.