/Products/VFD's & Soft Starters/KB Electronics/KBVF-27 KB Electronics Hybrid High-Performance Drive for PMSM Motors, 2HP
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Product ID: KB9591

KBVF-27 KB Electronics Hybrid High-Performance Drive for PMSM Motors, 2HP

MFG: KB Electronics, Inc
MFG Part Number: 9591

Temporarily out of stock
Selected accessories will also be added to cart
$270.20 / Each
208-230VAC Single or 3 Phase Input


Manufacturer KB Electronics (Nidec)
Part Number 9591
Model Number KBVF-27
AC Line Input 208-230VAC
Single or 3 Phase
Maximum Input Current 5.3 Amps
Output Voltage 0 - 230 VAC
0-50, 60, 100 or 120Hz
Max Output Power 2 HP
1.5 kW
6.7 Amps/Phase
Net Weight 3.95 lbs


Maximum Load 150% for 2 Minutes
Carrier Switch Frequency 8, 16 kHz
Output Frequency Resolution 0.06 Hz
Minimum Output Frequency to Motor 0.3 Hz
Acceleration Time 0.3 – 20 Seconds
Deceleration Time 0.3 – 20 Seconds
Speed Range 60:1 Ratio
Speed Regulation 2.5% of Base Speed
Stalled Motor Trip Time 6 Seconds
Braking Regenerative
Operating Temperature Range 0 to 50°C
32 to 122°F
Storage Temperature -25 to +85°C
-13 to 185°C


  • Saves Time
  • Easy to Install and Simple to Operate.
  • Does not require commissioning.
  • Up and Running in less than 10 Minutes

Additional Features

Sensorless Open-Loop Control Algorithm: With KB’s proprietary sensorless, open-loop control algorithm specifically designed for both induction and BPM motors, these drives do not require encoders but still provide exceptional torque vs. speed characteristics.

Isolated User Interface: The isolated user interface (for analog signal input, Forward-Stop-Reverse, Run/Fault Relay contacts) and circuitry for RS485 ModbusRTU Communication Protocol eliminate the need to purchase andinstall separate interface modules. These drives combine the digitaltechnology of the microprocessor with an easy-to-use isolated analog input user interface.

Electronic Inrush Current Limit (EICL™) Protection: Eliminates harmful inrush AC line current during power up.

Ride-Through: Provides smooth recovery to the previous set speed during a momentary power loss.

Regeneration Protection: Eliminates tripping due to high bus voltage caused by rapid deceleration of high inertial loads.

Undervoltage and Overvoltage Protection: Shuts down the drive if the AC line input voltage goes above or belowthe operating range.

Short Circuit Protection: Shuts down the drive if a short circuit occurs at the motor(phase-to-phase).

Trimpot Adjustments: Min. Speed, Max. Speed, Accel, Decel, Current Limit, Slip Comp.


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