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KBWM-240 9381 SCR CONTROL 1/50-3/4HP 230VAC 180VDC 1-WAY

KBWM-240 (KB9381) SCR Control - In Stock
Designed for 230VAC input and is rated 1/50 - 3/4Hp at 180VDC. Compact control is a version of our (KBMD). The control is in an all metal NEMA-1 enclosure.
Direct Replacement for Baldor BC139

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. 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.

STANDARD FEATURES:

  • Plug-in Horsepower Resistor®s. Allows a single model to be used on a wide range of motors
  • AC line and armatures fusing.
  • Rugged all-metal NEMA 1 enclosure.
  • AC line ON/OFF switch with “power on” indicator lamp.
  • Patented KBMM™ speed control module prevents demagnetization of PM motors.

Proper size Plug-in Horsepower Resistor® and armature fuse must be installed for control to operate.

SPECIFICATIONS:

Speed Range (Ratio) .....................................................  50:1
Load Regulation – Armature Feedback
(0 – Full Load, 50:1 Speed Range) (% Base Speed) ......1*
Line Voltage Regulation (at Full Load, ± 10% Line Variation)
(% Base Speed) ............................................................      1/2*
Control Linearity (% Speed vs. Dial Rotation) .................. 2
CL/Torque Range (% Full Load) ..............................0 – 200
Accel Time Range (0 – Full Speed) (Secs.) ........... .2 – 10

Decel Time Range (Full – 0 Speed)(Secs.) ............ .2 – 10
Min. Speed Trimpot Range (% Full Speed) ........... .. 0 – 30*
Max. Speed Trimpot Range (% Full Speed) ......... 50 – 120*
IR Comp.Trimpot Range (at Specified Full Load) (Volts).... 0 – 24
Max. Allowable Ambient Temperature at Full Rating
(°C/°F) ........................................................................ 50/122

*Performance is for SCR rated PM motors only. Lower performance can be
expected with other motor types. Factory setting is for 3% load regulation.

KBWM-240 9381 SCR CONTROL 1/50-3/4HP 230VAC 180VDC 1-WAY
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Picture is for quick reference only
Manufacturer Part Number: KBWM-240
Stock # KB9381
Price: $94.00
Compare At: $134.00
Quantity:

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