/Products/VFD's & Soft Starters/KB Electronics/KBWM/9380 KB Electronics Vari-Drive SCR Variable Speed DC Motor Control, 115VAC
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Product ID: KB9380

9380 KB Electronics Vari-Drive SCR Variable Speed DC Motor Control, 115VAC

MFG: KB Electronics, Inc
MFG Part Number: 9380

Available Stock: 39
Selected accessories will also be added to cart
$112.70 / Each
Quantity:
1/100 - 1/3HP @ 115VAC 50/60Hz. 3.5A DC / 5A AC
Armature Fuse and Horsepower Resistor are not included with this drive!

Description

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

Standard Features

  • Plug-in Horsepower Resistor® automatically calibrates IR Comp. and Current Limit (CL).
  • AC line and armature 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.

Specifications

Manufacturer KB Electronics
Model Number KBWM-120
Part Number 9380
Input Line Voltage 115 VAC 50/60Hz
Armature Voltage 0-90 VDC
Maximum AC Load Current 5.0 RMS Amps
Maximum DC Load Current 3.5 DC Amps
Maximum Power 1/3 HP
0.25 kW
UPC 024822093804
Speed Range (Ratio) 50:1
Load Regulation – Armature Feedback
(0 – Full Load, 50:1 Speed Range)
1 % Base Speed
Line Voltage Regulation
(at Full Load, ± 10% Line Variation)
1/2 % Base Speed
Control Linearity
(% Speed vs. Dial Rotation)
2
CL/Torque Range 0-200 % Full Load
Acceleration Time Range
(0 – Full Speed)
0.2-10 Seconds
Deceleration Time Range
(Full – 0 Speed)
0.2-10 Seconds
Min. Speed Trimpot Range 0-30 % Full Speed
Max. Speed Trimpot Range 50-120 % Full Speed
IR Compensation Trimpot Range 0-24 Volts
Max. Allowable Ambient Temperature at Full Rating 50°C/122°F

Plug-In Horsepower Resistor Chart

Motor Current Resistance Part No. Motor HP (90VDC) Motor HP (180VDC)
0.1 Amps 1.0 Ohms 9833 1/100 HP 1/50 HP
0.2 Amps 0.51 Ohms 9834 1/50 HP 1/25 HP
0.35 Amps 0.35 Ohms 9835 1/30, 1/25 HP 1/15 HP
0.5 Amps 0.25 Ohms 9836 1/20 HP 1/10 HP
0.8 Amps 0.18 Ohms 9837 1/15, 1/12 HP 1/6 HP
1.3 Amps 0.1 Ohms 9838 1/10, 1/8, 1/6 HP 1/4 HP
2.5 Amps 0.05 Ohms 9839 1/4 HP 1/2 HP
3.3 Amps 0.035 Ohms 9840 1/3 HP 3/4 HP

Armature Fuse Selection Chart

Motor HP (90VDC) Motor HP (180VDC) Motor Current Fuse Rating Part No.
1/100 HP 1/50 HP 0.1 Amps 0.2 AC Amps
1/50 HP 1/25 HP 0.2 Amps 0.3 AC Amps
1/30 HP 1/15 HP 0.3 Amps 0.5 AC Amps 9736
1/20 HP 1/10 HP 0.5 Amps 0.75 AC Amps 9737
1/15 HP 1/8 HP 0.7 Amps 1 AC Amps 9738
1/10 HP 1/5 HP 1.0 Amps 1.5 AC Amps
1/8 HP 1/4 HP 1.3 Amps 2 AC Amps 9740
1/6 HP 1/3 HP 1.7 Amps 3 AC Amps
1/4 HP 1/2 HP 2.5 Amps 4 AC Amps 9742
1/3 HP 3/4 HP 3.3 Amps 5 AC Amps 9743

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