21.F5.A1R-YB53 KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB 21.F5.A1R-YB53 is part of the F5 Combivert Axis Drives series and supports a general maximum motor power of 60 HP at 230V. This drive features a standard control board, rated output current of 90 Amps, and operates within an input voltage range of 305 to 528 Volts across three phases. It includes a braking transistor accessory and offers a rated apparent power of 62 kVA with a maximum braking current of 200 Amps.
Internal Product Review
The 21.F5.A1R-YB53 is a KEB Combivert F5 axis drive with a 400 V rated input and 90 A rated output current. A built-in braking transistor and 16 kHz maximum switching frequency support responsive motor control and clean deceleration, making this drive a strong choice for demanding axis applications.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The 21.F5.A1R-YB53 is an AC axis drive produced by KEB for the F5 Combivert Axis Drives series. It is an inverter-size 21 model with the R housing form factor and a standard control board. This unit governs induction or synchronous motors up to 60 HP, delivering closed-loop speed and torque regulation for conveyors, extruders, and other automated machinery in multi-axis production lines. It is intended for coordinated axis control where stable speed response and repeatable torque output are required during continuous operation.
The drive operates from a 3-phase supply and accepts line voltages from 305 to 528 V, while its rated input is 400 V and it also supports the UL 480 V category. At nominal conditions, it supplies 90 A of output current, which corresponds to a rated apparent power of 62 kVA. The internal IGBTs switch at a factory default of 4 kHz, and the device can modulate the motor terminals from 0 to Uin on each phase to match load demand. These electrical values allow the inverter to operate on common industrial power systems while maintaining fine pulse-width resolution for precise motor flux control. Standard mains frequencies of 50 Hz or 60 Hz ±2 Hz are supported without derating, and the built-in braking transistor interfaces with external resistors to dissipate regenerated energy.
The braking channel can conduct up to 200 A when a resistor of at least 5 Ω is installed, helping prevent DC-link overvoltage during rapid deceleration. For brief overloads, the output stage tolerates a short-time current of 135 A, and an overcurrent trip is set at 162 A to protect semiconductor devices. When higher dynamic bandwidth is needed, the switching frequency may be increased to a ceiling of 16 kHz, provided the heat sink temperature remains below 90 °C. Rapid deceleration can return energy to the DC bus, so the braking channel is used during frequent stopping or sharp speed changes.
