KB Electronics Plug-In Horsepower Resistor Selection Chart:

Motor Characteristics SCR Controls
(KBIC KBMM KBPB KBCC KBWM KBMD)
Ordering Information Motor Characteristics PWM Controls
(KBWD, KBWS)
Armature Voltage Motor
Current
(Amps DC)
Resistor
Value
(Ohms)
Individual
Part Number
SCR Rated
Motor
Horsepower
@ 90 VDC
SCR Rated
Motor
Horsepower
@180 VDC
PWM Rated
Motor
Horsepower
@ 130 VDC
PWM Rated
Motor
Horsepower
@ 200 VDC
Motor
Current
(Amps DC)
90-130 VDC 180 VDC
Motor Horsepower Range
- - - 2 9949 1/100 – 1/50 1/50 – 1/25 1/50 -1/25 1/25 – 1/20 0.2
1/100 – 1/50 1/50 – 1/25 0.1 – 0.2 1 9833 1/30 – 1/20 1/15 – 1/10 1/20 – 1/15 1/8 – 1/6 0.4
1/50 – 1/30 1/25 – 1/15 0.2 – 0.3 0.51 9834 1/15 – 1/10 1/6 – 1/5 1/12 – 1/8 1/6 – ¼ 0.7 – 1
1/30 – 1/20 1/15 – 1/10 0.3 – 0.5 0.35 9835 - - - - -
1/20 – 1/12 1/10 – 1/6 0.5 – 0.7 0.25 9836 1/8 – 1/6 ¼ – 1/3 1/6 – ¼ 1/3 – ½ 1.3 – 2
1/12 – 1/8 1/6 – ¼ 0.7 – 1 0.18 9837 ¼ ½ 1/3 ¾ 2.5
1/8 – 1/6 ¼ – 1/3 1.2 – 1.8 0.1 9838 1/3 – ½ ¾ – 1 ½ – ¾ 1 – 1.5 3.3 – 6
¼ ½ 2.5 0.05 9839 ¾ – 1 - 1 – 1.5 - 7.5 – 10
1/3 ¾ 3.3 0.035 9840 - - - - -
½ 180 VDC 5 0.025 9841 - - - - -
¾ 1.5 7.5 0.015 9842 - - - - -
1 2 10 0.01 9843 - - - - -
1.5 3 15 0.006 9850 - - - - -