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KELLY-KSL-SERIES : Kelly KSL Brushless Motor Controller
KELLY-KSL-SERIES : Kelly KSL Brushless Motor Controller

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Motor Current Limit

Description Manuals & Diagram
KSL sensorless and brushless series motor drivers and controllers are developed by Kelly Controls independently. It is suitable for fans, water pupmps, air conditioner compressors, fridge compressor applications, etc.

Models: KSL24100, KSL24150, KSL24200, KSL24300, KSL24400, KSL48100, KSL48150, KSL48200, KSL48300, KSL48400E, KSL48500E, KSL72100, KSL72150, KSL72200, KSL72300, KSL72400E, KSL72500E
Product Details

Kelly KSL Brushless Motor Controller

Item # Item Name Voltage Current Regen Price
KSL24100 Kelly KSL24100 12V-24V, 100A Brushless Motor Controller 12V-24V 100A No $173.63
KSL24150 Kelly KSL24150 12V-24V, 150A Brushless Motor Controller 12V-24V 150A No $212.43
KSL24200 Kelly KSL24200 12V-24V, 200A Brushless Motor Controller 12V-24V 200A No $270.63
KSL24300 Kelly KSL24300 12V-24V, 300A Brushless Motor Controller 12V-24V 300A No $309.43
KSL24400 Kelly KSL24400 12V-24V, 400A Brushless Motor Controller 12V-24V 400A No $484.03
KSL48100 Kelly KSL48100 24V-48V, 100A Brushless Motor Controller 24V-48V 100A No $173.63
KSL48150 Kelly KSL48150 24V-48V, 150A Brushless Motor Controller 24V-48V 150A No $212.43
KSL48200 Kelly KSL48200 24V-48V, 200A Brushless Motor Controller 24V-48V 200A No $270.63
KSL48300 Kelly KSL48300 24V-48V, 300A Brushless Motor Controller 24V-48V 300A No $309.43
KSL48400E Kelly KSL48400E 24V-48V, 400A Brushless Motor Controller 24V-48V 400A No $348.23
KSL48500E Kelly KSL48500E 24V-48V, 500A Brushless Motor Controller 24V-48V 500A No $387.03
KSL72100 Kelly KSL72100 24V-72V, 100A Brushless Motor Controller 24V-72V 100A No $231.83
KSL72150 Kelly KSL72150 24V-72V, 150A Brushless Motor Controller 24V-72V 150A No $270.63
KSL72200 Kelly KSL72200 24V-72V, 200A Brushless Motor Controller 24V-72V 200A No $328.83
KSL72300 Kelly KSL72300 24V-72V, 300A Brushless Motor Controller 24V-72V 300A No $387.03
KSL72400E Kelly KSL72400E 24V-72V, 400A Brushless Motor Controller 24V-72V 400A No $425.83
KSL72500E Kelly KSL72500E 24V-72V, 500A Brushless Motor Controller 24V-72V 500A No $503.43

General Functions

  • Extended fault detection and protection. The LED flashing pattern indicates the fault sources.
  • Monitoring battery voltage. It will stop driving if the battery voltage is too high and it will progressively cut back motor drive power as battery voltage drops until it cuts out altogether at the preset “Low Battery Voltage” setting.
  • Built-in current loop and over current protection.
  • Configurable motor temperature protection range.
  • Current cutback at low temperature and high temperature to protect battery and controller. The current begins to ramp down at 90°C case temperature, shutting down at 100°C.
  • Configurable and programmable with a host computer though RS232 or USB. Provide free GUI which can run on Windows XP/2000, Windows 7 and Vista (recommend using Kelly Standard USB To RS232 Converter).
  • Provision of a +5 volt output to supply various kinds of sensors, including Hall effect type.
  • Reversing switch. Closing to ground is to activate.
  • 0-5V: Default to throttle input.
  • Optional CAN bus. (temporary unavailable)
  • Optional supply voltage 8V-30V.


  • Intelligence with powerful microprocessor.
  • Synchronous rectification, ultra low drop and fast PWM to achieve very high efficiency.
  • Current limit .
  • Battery current limiting available, doesn’t affect taking off performance.
  • Configurable limit for motor current.
  • Low EMC.
  • LED fault code.
  • Battery protection: current cutback, warning and shutdown at configurable high and low battery voltage.
  • Rugged aluminum housing for maximum heat dissipation and harsh environment.
  • Rugged high current terminals, and rugged aviation connectors for small signal.
  • Thermal protection: current cut back, warning and shutdown at high temperature.
  • Current multiplication: Take less current from battery, output more current to motor.
  • Easy installation: 3-wire potentiometer will work.
  • Motor stall protection
  • Up to 17,000 electric RPM. (Electric RPM=mechanical RPM * motor poles)
  • Standard PC/Laptop computer is used to do programming. No special tools needed.
  • User program provided. Easy to use. No cost to customers.


  • Frequency of Operation: 16.6kHz.
  • Standby Battery Current: < 2mA.
  • 5V Sensor Supply Current: 40mA.
  • Controller supply voltage range, PWR, 8V to 30V for 24V controllers. 18V to 90V for controllers rated equal or lower than 72V. 18V to 120V for 96V controllers.
  • Supply Current, PWR, 150mA.
  • Configurable battery voltage range, B+. Max operating range: 18V to 1.25*Nominal Voltage. 8V to 30V for rated equal 24V.
  • Standard Throttle Input:
    • 0-5 Volts (3-wire resistive pot)
    • 1-4 Volts (hall active throttle)
  • Analog Throttle Input: 0-5 Volts. Producing 0-5V signal with 3-wire pot.
  • Reverse Alarm, Main Contactor Coil Driver, Meter: <200mA. (temporary unavailable)
  • Full Power Operating Temperature Range: 0°C to 50°C (controller case temperature).
  • Operating Temperature Range: -30°C to 90°C, 100°C shutdown (controller case temperature).
  • Motor Current Limit, 1 minute: 100A -500A, depending on the model.
  • Motor Current Limit, continuous: 50A - 250A, depending on the model.
  • Max Battery Current : Configurable.

Accessories for this product...
KELLY-J1-CABLE : Kelly Controller J1 Cable KELLY-J2-CABLE : Kelly Controller J2 Cable
Price: $9.00

Price: $9.00

KELLY-J1-CABLE : Kelly Controller J1 Cable KELLY-J2-CABLE : Kelly Controller J2 Cable

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