KB Electronics KBWS-25D PWM DC Motor Control 9493

KB Electronics KBWS-25D PWM DC motor control 9493 chassis mounted whisper drive UPC: 024822094924.  Product Manual Requires: Resistor Accessories: Armature Fuse, Combination Fuse Kit (9849)   This Drive will not operate without a HORSEPOWER RESISTOR.  Horsepower resistors are available for purchase separately.    KBWS PWM - Pulse Width Modulated DC Drive Speed Controls The KBWS PWM (pulse width modulated) controls are designed to operate PWM and SCR rated Permanent Magnet motors ranging from 1 HP to 1.5 HP. They operate at a switching frequency greater than 16 kHz to provide high motor efficiency and quiet operation. The KBWS contains pulse-by-pulse current sensing, which provides short circuit protection and prevents control damage due to commutator arcing. Permanent magnet motor demagnetization is completely eliminated because current peaks are reduced to safe levels. The controls contain an AC line inrush current limiter (ICL) which reduces the AC line surge current during