The KBPC Series NEMA-4X (IP-65) SCR DC Motor Speed and Torque Control is designed for applications requiring washdown watertight integrity. Its housing is ruggedly constructed of die cast aluminum which is protected with an acrylic coating for the ultimate in corrosion resistance. All switches are sealed with rubber boots and the main speed potentiometer contains a shaft seal.

The KBPC state-of-the-art electronics include short circuit and transient protection to provide the ultimate in reliability. Electronics overload protection is also provided which prevents motor burnout and demagnetization of PM motors. The control can be operated in either the speed or torque mode via a jumper selection. The current range, which is also jumper selectable, eliminates the necessity for calibration of IR compensation and current limit for most applications. The KBPC also contains jumper selections for AC line voltage (230/115), DC armature voltage (180/90) and feedback type (armature/tachometer).

  • Electronic Overload Protection
  • Built-in Armature Fusing (Fuse supplied separately)
  • LED’s for “Power On,” “Overload” and “Stop”
  • Electronic Start-Stop
ManufacturerKB Electronics
Model NumberKBPC-240D (Black)
Part Number9338
Input Line Voltage115/230 VAC (+/-10%) 50/60Hz
Motor Voltage0-130 VDC
0-180 VDC
Maximum AC Load Current15.0 RMS Amps
Maximum DC Load Current10.2 DC Amps
Maximum Power2 HP
1.5 kW
Field Voltage100/200 VDC Terminals F1, F2
50/100 VDC Terminals F1, L1
UPC024822093385
Weight5 lbs
Warranty18 month
AC Line Voltage Regulation+/-0.5 % Base Speed
Current Ranges2.5, 5, 7.5, 10 Amps DC
ACCEL and DECEL Ranges0.1-15 Seconds
MIN SPEED Range0-30 % Base Speed
MAX SPEED Range60-140 % Base Speed
IR COMP Range0-15VDC @ 115 VAC Line
0-30VDC @ 230VAC Line
CL Range0-200 % Range Setting
TIMED CL Range0.5-15 Seconds
Voltage Following Linearity+/-0.5 % Base Speed
Horsepower Range1/50-1HP @ 115VAC Line
1/25-2HP @ 230VAC Line
Armature Voltage Range0-130VDC @ 115 VAC Line
0-220VDC @ 230 VAC Line
Field Voltage100/50VDC @ 115 VAC Line
200/100VDC @ 230 VAC Line
Ambient Temperature Range0-50°C
Speed Range50:1 Ratio
Load Regulation, Armature Feedback+/- 1 % Base Speed
Load Regulation, Tachometer Feedback+/- 1 % Base Speed
  • Control Mode: Speed, Torque
  • DC Current Output (ADC): 2.5, 5.0, 7.5, 10
    0.25, 0.50, 0.75, 1.0 with Plug in Horsepower Resister
  • AC Line Voltage (VAC-50/60 Hz): 115, 230
  • DC Armature Voltage (VDC): 90, 180
  • Feedback Type: Armature, Tachometer
  • Tachometer Voltages (VDC): 7, 20/30, 50 (per 1,000 RPM)
  • Timed Current Limit: TCL, NTCL
Bold Denotes Factory Setting
  • Minimum Speed (MIN)
  • Current Limit (CL)
  • Acceleration (ACCEL)
  • Timed Current Limit (TCL)
  • Maximum Speed (MAX)
  • IR Compensation (IR)
  • Deceleration (DECEL)
  • Jog Speed (JOG)
Motor HP (90VDC)Motor HP (180VDC)Motor CurrentFuse RatingPart No.
1/8 HP1/4 HP1.3 Amps2 AC Amps9740
1/6 HP1/3 HP1.7 Amps2-1/2 AC Amps
1/4 HP1/2 HP2.5 Amps4 AC Amps9742
1/3 HP3/4 HP3.3 Amps5 AC Amps9743
1/2 HP1 HP5 Amps8 AC Amps9744
3/4 HP1-1/2 HP7.5 Amps12 AC Amps9745
1 HP2 HP10 Amps20 AC Amps

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