| Series: | KBWM |
| Input Amps AC: | 5 Amps |
| Output Armature VDC: | 90 VDC |
| Max HP @ 180 VDC Armature: | 1/3 Hp |
| Input Phase: | 1 |
| Output Field Amps DC: | 100 VDC, 50 VDC |
| Regen: | No |
| Feedback Types: | Armature |
| Operator Controls: | Built In |
| Package: | Enclosed |
| Temperature Range (F): | 32-122 °F |
| Approvals: | cUL, UL |
| Nominal Armature VDC: | 90 VDC |
| Net Weight: | 1.3 lbs |
| Product Summary: | Operates off 115 Volt AC line, 50/60 Hz. Filtered DC output for cooler motor operation, longer brush life, lower audible noise, and wider speed range. |
The KBWM™ Vari-Drive™ adjustable speed SCR control for DC motors offers proven reliability in a rugged all-metal NEMA-1 enclosure. The Vari-Drives are equipped with the ultimate KBMM™ speed control module. They are specifically designed for fractional horsepower permanent magnet (PM) DC motors. Two models are offered. The KBWM-120 is designed for 115 VAC input and is rated 1/100 - 1/3Hp at 90 VDC. For motors rated 1/50 - 3/4 Hp at 180 VDC use Model
KBWM-240. KB’s exclusive Plug-in Horsepower Resistor®* automatically presets the drive’s IR Comp and CL circuits for safe operation on various motors. Although factory calibrated, internal trimpots for Min, Max, IR, CL, Accel and Decel can be used to fine-tune the KBWM™ for specific
applications. Connections to the control are via a barrier terminal block. By changing the orientation of the front cover, the wiring can be brought in either from the bottom or the top
of the control. Motor failure due to demagnetization is eliminated by the patented ultra-fast Direct-Fed™ current limit circuit. The controls contain AC line and armature* fusing, which provide protection against catastrophic failure. Auto-Inhibit®, a KB exclusive, allows the drive to be turned on and off rapidly using the AC line without damage to the control and/or motor. The
internal CL LED is a diagnostic indicator that lights when the motor is overloaded.
A conveniently located front panel lighted rocker switch controls AC line input power to the drive.
*Plug-in Horsepower Resistor® and armature fuse supplied separately
Dimensions: 3.70" x 6.80" x 3.00"
**Plug-In Horsepower Resistor® and Armature fuse supplied separately.
Options include Auxiliary heat sink, Barrier Terminal Board, RFI/EMI filters and Signal Isolation.
UL, CSA, CE, C-tick. (CCC pending) Patented.
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