Pro Boat Waterproof 45A Brushless ESC User Manual
Pro Boat Hardware

Instruction Manual
Thank you for choosing the Pro Boat
™
brand. Your satisfaction is our number
one priority. With this in mind, we
have produced this product to be of
the highest quality, performance and
reliability, and at a “value-packed” price.
We hope it provides you with hours of
enjoyment in your next R/C project.
Features
• Rev limiter allows brief operation of
the motor out of the water to protect
the motor and drivetrain components.
• Water cooled for optimum performance
without the need for large heat sinks.
• The soft start feature slightly limits
current to increase the life of the
electronic components.
• The ESC also features a cutoff voltage
indicator that will stop the motor from
operating if the batteries are reaching
full discharge. To reset, return the
throttle to neutral and bring the boat
to shore at low throttle and recharge
batteries.
• High-power FET control with
proportional forward
• High-frequency design delivers smooth
speed transition
• Pre-wired with Dean’s battery plug,
bullet-style motor connectors and
universal receiver plug that fit JR,
Hitec, Airtronics Z, Futaba and new KO
radios
• Pre-programmed for use with Ni-MH
batteries. Can be programmed for
use with Li-Po batteries with PRB3311
Programming Module (sold separately)
Specifications
Operation: Proportional forward
Minimum input voltage: 10V
Maximum input voltage: 21V
BEC voltage: 5.8V
BEC current limit: 5A
continuous current maximum: 45A
Peak current maximum: 55A
Mounting the Speed Control
Note: Be sure all wiring
connections can be reached prior
to mounting.
Mount the Pro Boat ESC in the location
specified by your boat’s instruction
manual. Use the double-sided foam
tape (not included) to secure the speed
control in position.
Diagram
1. The positive (red) and negative
(brown) wires must be reversed to
operate with these radio systems. To
remove the wires from the plug use a
small jeweler’s screwdriver to pry up
the plastic tab associated with each
wire. Gently slide the brown wire out
of the plug. Repeat on the red wire
and replace in the opposite positions.
2. Install the ESC receiver plug into
channel 2 or the throttle channel
of the receiver. Install the plug
referencing the wire colors on the
steering servo for proper polarity.
Connecting the Motor Wires
Connect all three wires
to the motor in any
order. If the motor runs
backwards, simply switch
any two wires.
Connecting the Battery
The Pro Boat ESC comes pre-wired with
Dean’s-style connectors, compatible with
most high-power battery packs.
ProBoat offers a PRB3313 3600mAh
Ni-MH pack and a PRB3314 4200mAh
high capacity Ni-MH battery with Dean’s
connectors for use with this ESC.
1. Be sure the On/Off switch is in the
Off position.
2. Connect two fully charged 6-cell
Ni-MH sub-C battery packs to the
speed control’s battery connectors.
Waterproof 45A Brushless
Electronic Speed Control (ESC)
Wiring the Receiver
Note: The Pro Boat ESC uses
the motor battery to supply
power to the receiver. There is
no need for a separate receiver
battery.
• See your radio’s instruction manual for
proper connection. Typically, channel 2
is used to control the throttle.
• There are three wires involved in
the universal receiver connector. It
is directly compatible with JR, Hitec,
Airtronics Z, Futaba and new KO
systems.
• Older Airtronics or KO radio systems
must use a modified wiring order.
STEERING
SERVO
MOTOR
CONNECT
ESC TO CH.2
POWER
SWITCH
BATTERY
CONNECTORS
BATTERIES