Owner`s manual

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10. If you wish to make an adapter cord to connect your PFC-40’s input cable to a
220/240V three prong plug (like a NEMA 10-30, 10-40 or 6-50), use a 14-50
receptacle and simply disregard the white wire and the middle straight neutral prong.
Run the green wire to the ground prong and then the red and black wires to either of
the two hot prongs.
The PFC-30 and PFC-40 chargers come with a 4 wire AC input cable but do not
ever use the White neutral wire for anything. Even though there is a 4-wire plug on
the unit, the white wire should never be connected to anything.
Note:
Any Manzanita Micro PFC-20, 30 or 40 charger can be plugged into a NEMA
14-50 outlet. The 50 amp rating is just what the outlet is capable of and the charger
will only draw as much as it is designed to use.
Running Your PFC Charger on DC instead of AC
You may have heard that Manzanita Micro chargers can run from both AC and DC
power. This is true under the right circumstances.
NOTICE! The Manzanita Micro chargers were primarily designed to run from an AC
power source. If you are planning to run one on DC power and it is damaged, repair
work will likely NOT BE COVERED UNDER WARRANTY! It should be noted that
the primary on/off circuit breaker on the charger is only AC rated. For this
reason, we recommend installing an appropriate DC rated breaker or fuse on
the input side when powering any Manzanita charger with DC.
There are two Manzanita Micro PFC charger models which can be run from DC
power without having to make any internal adjustments to the unit. These unique
models are the standard PFC-20 and the PFC-40HM. Some pre-2011 standard
PFC-50 chargers may work as well but check with Manzanita Micro to be sure.
If you are running a charger on DC power, it is advisable to keep the input voltage
between 100 and 390VDC. The lowest voltage that will get the charger to turn on is
about 60VDC. The absolute highest acceptable DC input voltage is 400V. NEVER
EVER EXCEED THE 400VDC MAXIMUM INPUT VOLTAGE!!
NOTE: The buck enhanced chargers including the PFC-20B, the standard PFC-30
and PFC-40 and the PFC-50B and PFC-75 chargers can be modified to run on DC
by disconnecting the buck sensor unit and adding a jumper over two pins on the
control board. Contact Manzanita Micro for more information if you if you are really
determined to run a buck enhanced charger from a DC power source.