KB Electronics DC Drives

The KBIC controls PM, Shunt and AC/DC motors over a range of 1/100 - 3 HP with only a few models. All models can be used on a wide range of motor horsepower by inserting KB’s exclusive Plug-In Horsepower Resistor®.

The KBMM full-wave DC motor control is the ultimate in reliability and performance. Contains Direct-Fed™ current limit that helps protect the SCR power bridge against direct shorts and prevents demagnetization of PM motors.

The KBCC chassis controls utilize the KBMM speed control to provide a low-cost, reliable SCR drive. They include all the features of the KBMM™ plus the Auxiliary Heat Sink and Barrier Terminal Block with AC line and armature fuses.

The KBRG is a full-wave regenerative control, capable of operating a DC motor (Permanent Magnet or Shunt) in a bidirectional mode. It provides 4-quadrant operation which allows forward and reverse torque in both speed directions.

The KBWM control is a compact version of the Multi Drive (KBMD). The control is packaged in an all-metal NEMA-1 enclosure. This unidirectional SCR drive utilizes the KBMM speed control module, which prevents motor failure due to demagnetization.

The Model KBMD-240D, also called Multi-Drive™, is a packaged SCR drive in a NEMA-1 enclosure. It utilizes the KBMM™ speed control for its electronics. The Multi-Drive™ is rugged and compact in size.

The KBPC Series NEMA-4X (IP-65) SCR DC Motor Speed and Torque Control is designed for applications requiring washdown and watertight integrity. Its housing is ruggedly constructed of die cast aluminum which is protected with an acrylic coating. Exclusive Short Circuit and Timed Current Limit (TCL) circuitry prevents motor burnout and demagnetization of PM motors.

The KBPW-240D is a Pulse-Width Modulated (PWM) control in a NEMA-4X  / IP-65 washdown and watertight enclosure designed to operate Permanent Magnet and Shunt Wound motors through 7.5 Amps DC. This provides high motor efficiency, whisper quiet operation along with less motor heating.

The KBRC-240D is a Full-Wave Regenerative Drive in a NEMA-4X / IP-65 washdown and watertight enclosure. It is designed to operate 90 and 180 Volt Permanent Magnet and Shunt Wound DC motors in a bidirectional mode. It provides 4-quadrant operation, which allows forward and reverse torque in both speed directions.

KB Electronics - KBTC

The KBTC-125 and KBTC-225 are designed to control a motor's torque, by controlling motor current. Unlike a traditional DC motor speed control, which controls voltage and limits current, the main potentiometer of the KBTC sets the current. The motor current will not vary over the speed range if the load is less than the current set point; the KBTC goes to maximum voltage.

KB Electronics - KBWD

The KBWD Pulse Width Modulated (PWM) DC motor speed control provides excellent dynamic response to load variations. The efficient PWM waveform produces an almost pure DC current to the motor (form factor < 1.05) which has several advantages over a conventional SCR control.

KB Electronics - KBWS

The KBWS PWM (pulse width modulated) controls are designed to operate PWM and SCR rated Permanent Magnet motors ranging from 1/50 HP to 11/2 HP. They operate at a switching frequency greater than 16 kHz to provide high motor efficiency and quiet operation.

KB Electronics - KBBC

The KBBC series of battery powered variable speed controls are designed for 12, 24, 36, and 48 Volt PM and Series Wound DC motors. Microcontroller design provides superior performance and ease of tailoring to specific applications.

KB Electronics - KBWT

The KBWT Pulse Width Modulated (PWM) DC motor speed controls provide excellent dynamic response to load variation. The efficient PWM waveform produces an almost pure DC current to the motor (form factor < 1.05), which has several advantages over a conventional SCR control. PWM significantly lowers audible motor noise and provides longer brush life.

KB Electronics - KBPB

The KBPB “cycler” control is designed to provide antiplug “instant” reversing, solid state dynamic braking and rapid cycling. It combines all of the features of the KBMM speed control with the features of the KB APRM. Contact arcing is eliminated since the APRM allows armature switching to take place only when current levels are near zero.

KB Electronics - KBPI

The KBPI Series of SCR DC Drives consist of 2 models ranging from 1/6 thru 2.0 horsepower, housed in heavy duty NEMA-4X (IP-65) die cast aluminum washdown / watertight enclosures for indoor or outdoor use. These analog style DC Drives are ideal for indexing applications.