Manzanita Micro PFC20 Charger

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Quick Overview

Standard model capable of 20 amps in to 20 amps out. Buck Enhanced model capable of 20 amps in to 30 amps out.

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The PFC series of chargers are designed to be as versatile and as powerful as possible within the limits of residential power infrastructure. Three models are available: The PFC20 that is designed to operate from a 20 amp 240 volt outlet, the PFC30 that is designed to operate from a 30 amp 240 volt dryer outlet, and the PFC50 that is designed to operate from a 50 amp 240 volt range outlet. They will operate at half power (same line current) from a 120 VAC source.

Extremely versatile input and output voltages

These chargers will operate on any voltage from 60 volts to 240 volts AC at either 50 or 60 Hz. Current is limited to ~20 amps input or output for the PFC20, ~30 amps input or output for the PFC30 and ~50 amps input or output for the PFC50. There are no switches to adjust to change the input voltage. The charger automatically uses whatever voltage is provided.

The charger output can be adjusted for any charging voltage from 12 volts to 450 volts with the twist of a 20 turn trimmer pot. There is no need to buy different chargers for the different electric vehicles you may need to charge. The charger can be reprogrammed to another pack voltage if you change the number of batteries in your system. There is no longer a need to buy another charger every time you add or take batteries out of your system.

The actual power delivered is a function of input and output voltage. Refer to the performance charts for the various products to see how much power to expect in your application.

Extremely powerful for an onboard charger

The essential ingredient for fast recharge times is to deliver high power to the battery. The key to polite opportunity charging is to be able to share outlets with other equipment and make efficient use of limited current. The PFC line of chargers have a throttle to allow the chargers to be turned down to operate on very limited power sources such as small generators. The PFC20 has demonstrated putting 2200 watts into a 156 volt battery pack from a 2400 watt generator. Efficiency and power factor are both better than 0.9.

Input Voltage and Efficiency

Either charger will operate from any voltage from 60 to 240 volts AC at either 40 to 80 Hz. The chargers have a throttle knob to allow the user to turn the current down when using shared or undersized circuits. These chargers are designed to operate at full capacity from a 30 Amp circuit.

The downloadable chart below shows the amps delivered by a unit using three common line voltages.

Efficiency is 88% to 96% percent on the early units depending on input and output voltage. The later units operate quieter with a loss of efficiency when bucking.

Power factor is .92 to .9997 and depends on input and output voltage. Low output voltage from high input voltage is the former. High output voltage from low input voltage for the latter.

Safety circuits

The charger is protected from reverse polarity installation by an internal fuse.

Over temperature conditions cause the current to ramp back to prevent the internal temperature from going over 170F (more air makes more power.)

The charger is programmed to be a constant current source and will survive a short circuit indefinitely.

There is a programmable timer to shut off the charger after a user selectable period.

The charger is BatReg aware (turns down or off if a BatReg gets hot.)

This charger is non-isolated. The negative terminal of the battery is connected to the negative terminal of a rectifier bridge with the AC terminals connected to the incoming line.

Stock Status N/A
Country of Manufacture United States

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