Variable Frequency Drive – KBAC AC Drive

KB Electronics KBAC AC Drive

Nexus Grinders is an authorized Canadian re-seller of KB Electronic Variable Frequency Drives. We ship only within Canada.

Variable Frequency Drives are commonly referred to as VFD’s. KB’s AC drives provide variable speed for 3ph AC Induction motors. If you want to use a VFD, you must use a 3-phase motor. You can’t use a single-phase motor on the industry standard VFD’s that most knife makers use for grinders. VFD’s convert single phase 115 or 230 volt inputs into 3-phase outputs to the motor. VFD’s control speed and also allow you to use forward and reverse settings with an optional switch.

You can’t use a motor that is rated higher than the VFD rating. You can use a higher rated VFD with a lower rated motor. So you can use a 2 horsepower VFD (KBAC-27d) with a 1 hp to 2 hp – 3 phase motors. You should not use a 1 horsepower VFD (KBAC-24d) with a 1.5 hp or 2 hp – 3 phase motor.

The three drives listed below are generally used for 1 to 3 HP – 3 phase motors.
* The KBAC -24D is recommended for 1.0 HP – 3 phase motors.
* The KBAC -27D is recommended for 1.0 HP, 1.5 HP & 2 HP – 3 phase motors, but most commonly used for 1.5 and 2 hp – 3 phase motors.
* The KBAC -29(1P) is recommended for 2.0 HP & 3 HP – 3 phase motors.

KBAC Hybrid Drive™ – NEMA 4X / IP65
The KBAC Series of Adjustable Frequency Drives consist of six inverter models rated for 1/8 to 5 horsepower motors. These drives are housed in heavy duty NEMA 4X / IP 65 die-cast aluminum washdown/watertight enclosures for indoor or outdoor use. Hybrid drives are a digital drive with an analog interface.  Warranty is 18 months from date of purchase.

Options available are:
On/Off AC Line Switch, Forward-Stop-Reverse Switch, Run-Stop-Jog Switch and Strain Relief Fittings.

Data Sheet

If you are looking for other KB Electronic Drives such as the KBAC-29(1P) or have questions on KB Electronic drives, please contact Nexus Grinders. We also sell 3 phase motors for your VFD too.