Baldor BC14x Series DC Motor Controllers
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Baldor BC14x Series DC Motor Controllers


  • Short Circuit Protected Motor
  • Step-Down Operation
  • Reliability and Performance
  • Selectable Armature or Tach Feedback

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• AC Line Voltage: 115 VAC
• Motor Voltage: 0 - 90 VDC
• Maximum AC Line Current, with Auxiliary Heat Sink: 24.0 RMS Amps
• Maximum DC Load Current, with Auxiliary Heat Sink: 16.0 Average Amps
• Maximum Horsepower, with Auxiliary Heat Sink: 1.5HP (1.1kw)

Stock # 93107-1

  • Description
  • Tech Specs
  • Datasheets / Manuals 
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The Baldor BC14x Series DC Motor Controllers with Surface Mount, (SMT) construction, offer the user the ultimate in reliability and performance at an affordable price. The controls contain a unique patented super-fast Direct-Fed current limit circuit that protects the SCR power bridge against direct shorts. The reliability of the control is further enhanced with the use of high-surge, 25 Amp SCRs, and AC line and armature fusing. The control is designed with exclusive Plug-In Horsepower Resistor, which eliminates the need for recalibrating IR Comp and Current Limit when the control is used on various horsepower motors. In addition, the rating of the control can be extended to 1.5 HP for controls with 90 Volt DC output and 3 HP for controls with 180 Volt DC output, by the use of an Auxiliary Heat Sink. Model numbers BC142, BC142-5 and BC142-6 also allow operation of 90 Volt DC motors when used on 208/230 Volt AC line input.

The versatility of the control is confirmed by its extensive list of standard features, such as: selectable armature and tach feedback and adjustment trimpots for minimum speed, maximum speed, current limit, IR compensation, and linear acceleration and deceleration. The control includes Auto-Inhibit, which eliminates surging during rapid AC line switching; pulse transformer triggering, which provides cogless operation at low speed; and superior noise rejection circuitry, which eliminates false starts and blown SCRs. Enable (normally closed) and inhibit (normally open) functions provide electronic switching of control output.

The output voltage of the control is a linear function of the main speed potentiometer setting. In addition, the control can be used in a voltage following mode by supplying an isolated analog input signal to Terminals "P2" (+) and "P1" (-). The control is compact in size (only 4.30' X 3.64" X 1.25") and easily replaces all competitive speed controls.

Product Family: BC-141, BC141, BC142, BC142-5, BC142-6, BC1425, BC1426
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Manuals, Datasheets, Drivers, Links

Baldor BC14x Series Manual (pdf) 
Link to Baldor Website