12.F5.CBB-350A KEB
Wake Industrial LLC is not an authorized distributor of this product.
The 12.F5.CBB-350A is a compact axis drive manufactured by KEB as part of the F5 Combivert Axis Drives series. It supports a maximum motor power of 5 HP, has an input rated current of 13 Amps, and operates on a 3-phase 400 VAC/DC supply. The drive features a built-in brake transistor, a maximum output frequency of 599 Hz, and an overcurrent trip current of 21 Amps.
Internal Product Review
The 12.F5.CBB-350A is a KEB Combivert F5 axis drive with compact control and an included brake transistor. A 3-phase 400 VAC/DC input and 9.5 A rated output current give this unit strong compatibility and steady drive performance for industrial motion systems. A 599 Hz maximum output frequency is a standout specification for fast, precise axis control.
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Product Description:
The 12.F5.CBB-350A is a three-phase axis drive module produced by KEB and placed in the F5 Combivert Axis Drives series. As an inverter stage, it converts the plant's 400 V supply into variable voltage and frequency output for closed-loop speed and torque control on AC motors up to 5 horsepower. In automated lines, the unit sits between the PLC and the motor, providing adjustable acceleration, deceleration, and braking without external contactors. This arrangement lets the drive respond to changing load conditions while keeping motor operation under electronic control.
Electrical ratings describe how the inverter interacts with the line supply and the load. The drive accepts a three-phase 400 VAC/DC input and draws 13 A at nominal load through its front-end rectifier. Internally, the control section is compact, and the inverter size code is 12, indicating the mechanical frame and busbar pattern used in this series. At the motor terminals, the unit can deliver a continuous 9.5 A and support machines requiring up to 5 HP of shaft power. Output frequency ranges from zero to 599 Hz, while pulses are modulated at a 4 kHz switching rate to balance acoustic behavior with conduction losses. A built-in brake transistor works with an external resistor of at least 82 Ω to dissipate dynamic braking energy up to 10 A.
Transient and thermal limits protect the converter during demanding duty cycles. For short intervals, the current may rise to 17 A, but electronic monitoring trips at 21 A if that level persists. The drive also enforces a 180% overcurrent ceiling and a separate short-time limit of 150% to keep the IGBTs within a safe operating range. Regenerative braking events are handled by a peak sink capability of 10 A, provided the external resistor keeps its temperature below the 90 °C heat-sink threshold. These current and temperature limits restrict how long overload and braking events can continue during rapid indexing or high-inertia stops before protective action is required.
