® OWNER'S MANUAL Model: PSV-300 30-AMP SWITCHING DC POWER SUPPLY www.pyramidcaraudio.
FEATURES Your PYRAMID Heavy-Duty 30-Amp Switching DC Power Supply is designed to use AC power-to-power equipment that requires 12V DC automotive power. The power supply converts standard 120V AC household power to 13.8V DC power and can supply up to 30 amps of continuous power. Note: Your vehicle's electrical system provides 13.8 Volts when the engine is running. If you are an electronic hobbyist or technician, you will appreciate the many uses for the power supply at your workbench or in your house.
IMPORTANT SAFETY INSTRUCTIONS DANGER: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, CAREFULLY FOLLOW THESE INSTRUCTIONS. WARNING: This unit should not be directly connected to a battery for charging or for battery back-up. Battery charging and battery back-up may be undertaken only when the battery is connected through suitable external isolating diodes and charge limiting resistor. The isolating didode will ensure that battery does not back power the power supply.
Caution: To reduce the risk of damage: • Do not expose the power supply to rain or excessive moisture. • Do not operate the power supply if it has been dropped or damaged in any way. Take it to a qualified service technician for repair. • Slots and openings on the back and bottom of the power supply's cabinet are for ventilation. To ensure the power supply's reliable operation and to protect it from overheating,be sure these openings are not blocked or covered.
CONNECTIONS Caution : Make all other connections before you connect the power supply standard AC power. 1. Turn off the device requiring power. 2. Set the power supply's POWER switch to OFF. 3. Turn the sleeves of the red and black binding output posts counterclockwise to expose the wire hole. 4. Insert the device's positive wire (usually red) into the red binding post's wire hole, then tighten the binding post's sleeve to secure the wire in place. 5.
OPERATION To use the power supply after you connect the device to it, set POWER to turn it on with the red led light illuminated. If the power supply's POWER switch does not light, check all connections and confirm the wall AC outlet has power. If the outlet has power, set POWER to OFF, reduce the load (by using a device that does not require more that 30 amps), then set POWER to ON.
SPECIFICATIONS Input Voltage.......................................................................110 to 120V AC Input Frequency .................................................................................60 Hz Output Voltage .............................................................13.8V DC ±0.5 Volts Output Current ....................................30 Amps DC Continuous (Maximum) Line Regulation ...................................................................Less Than ±5% Load Regulation ...
