The KBMM Series of DC Drives consist of three models rated for 1/100 to 3 horsepower motors.* This chassis full-wave DC motor control is the ultimate in reliability and performance. The drive contains Direct-Fed™ CL that helps protect the SCR power bridge against shorts due to commutator arcing and prevents motor demagnetization. 25 Amp SCRs and AC line and armature fusing** further enhance reliability. A Plug-in Horsepower Resistor®* is required to operate the drive and eliminates the need for recalibration when used over a wide range of motor horsepower. They include an AC line fuse holder and an Armature fuse holder, MOV transient protection, trimpot adjustments for MIN, MAX, ACCEL, DECEL, IR, CL, and a 5k ohm potentiometer. This drive also contains Auto Inhibit® which provides a smooth, safe start during rapid switching of the AC line.
*An Auxiliary Heat Sink is required when operating motors above 3/4 HP at 90VDC and 1-1/2 HP at 180VDC.
**Plug-In Horsepower Resistor®, AC line fuse and Armature fuse supplied separately.