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NEMA 1 DC Drives

DC Controls, NEMA 1

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NEMA 1 Variable Speed DC Drive Controls
     

KB standard off-the-shelf DC Drives provide variable speed for DC motors from sub-fractional to 5 horsepower.* They are available in 115 and 208/230 VAC-50/60 Hz with 1Ø input and are housed in a NEMA 1 enclosure. 

A variety of optional accessories are also available to meet the most demanding applications.

⃰ For OEM applications, custom drives are available.

KBWM SCR Drive – NEMA 1

The KBWM Series of DC Drives are rated for 1/100 to 3/4 horsepower motors and are housed in a NEMA 1 enclosure. These drives are the compact version of the Multi Drive™ (KBMD). This unidirectional SCR drive utilizes the KBMM speed control module, which prevents motor failure due to demagnetization. It requires a Plug-in Horsepower Resistor® to operate and includes an AC line fuse and an Armature fuse holder.* This drive also contains Auto Inhibit® which provides a smooth, safe start during rapid switching of the AC line and a terminal block to facilitate wiring. More Information: Data Sheet, Manual

*Plug-In Horsepower Resistor® and Armature fuse supplied separately.

KBMD SCR Drive – NEMA 1

The Model KBMD-240D, also called Multi-Drive™, is rated for 1/100 to 2 horsepower motors* and is an SCR drive housed in a NEMA 1 enclosure.It utilizes the KBMM speed control for its electronics. It handles both 115 and 208/230 Volt AC line inputs by setting the built-in Dual Voltage Switch. The single model can be used on a wide range of motor horsepower by inserting the appropriate Plug-In Horsepower Resistor®, which is required to operate this drive. It includes an AC line fuse and an Armature fuse holder.** This drive also contains Auto Inhibit® which provides a smooth, safe start during rapid switching of the AC line. More Information: Data Sheet, Manual

Options: Auxiliary Heat Sink (P/N 9861), Forward-Brake-Reverse Switch Kit** (P/N 9860).

*An Auxiliary Heat Sink is required when operating motors above ¾ HP at 90VDC and 1½ HP at 180VDC. **Plug-In Horsepower Resistor®, AC line fuse and Armature fuse supplied separately.

KB Drives are available through over 800 distributors worldwide. 
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DC Controls, NEMA 1
Model No.
Rating
Part No.
Data Sheet
Manual
Details
SCR NEMA 1 Non-Reversing    
KBWM-120 115 VAC, thru 0.33 HP, 90 VDC ARM 9380 Data Manual Details
KBWM-240 230 VAC, thru 0.75 HP, 180 VDC ARM 9381 Data Manual Details
SCR NEMA 1 Reversing Optional        
KBMD-240D 115/230 VAC, thru 0.75/1.5 HP, 1.0/2.0 HP with heatsink 90/180 VDC ARM 9370 Data Manual Details
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