AX5125-LF00-1 Beckhoff
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The Beckhoff AX5125-LF00-1 is a digital servo drive from the AX Digital Servo Drives series with a rated output current of 25 Amps and a peak output current of 50 Amps. This unit supports up to 17.3 kVA apparent power at 400 Vac and includes one channel. It features a protection class of IP20, a maximum DC link voltage of 890 VDC, and is designed for vertical installation.
Internal Product Review
The AX5125-LF00-1 is a Beckhoff AX digital servo drive that stands out in demanding motion applications with 25 A rated output current and 50 A peak output current. Single-channel architecture and IP20 protection support clean cabinet integration and dependable servo performance.
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Product Description:
The AX5125-LF00-1 is a single-axis servo drive manufactured by Beckhoff and assigned to the AX Digital Servo Drives series. Installed between the mains supply and a matched motor, it modulates current and voltage so motion controllers can execute precise speed, torque, and position commands in automated machinery. Its role is to deliver tightly regulated electrical power, accept feedback, and apply braking energy without external components, making it suitable for compact industrial cabinets.
The drive’s continuous motor supply is rated at 25 A, which is the maximum RMS phase current available during steady operation. For rapid acceleration or load disturbances, it can supply a peak of 50 A for a brief interval, giving additional reserve for dynamic moves. Motors with thermal ratings as low as 12 A remain compatible because the current loop can be tuned down to this minimum without loss of resolution. When connected to a 400 V AC network, the converter draws an apparent power of 17.3 kVA, which helps size upstream protection and cabling. Internally, a shared DC link is allowed to climb to 890 VDC, which supports energy recycling from regenerative braking while remaining below the semiconductor limits.
Thermal behavior and enclosure planning are influenced by a power loss of 340 W, which must be removed through the control cabinet airflow. The housing has an IP20 protection class, so it must be installed inside an electrical enclosure and kept away from conductive dust. During emergency stops, the integrated brake chopper can dissipate up to 26 kW, while an additional resistor bank may be added for applications that require an external absorption capacity of 32 kW. Mechanically, the unit is 274 mm tall, 232 mm deep, and 185 mm wide, and it must be mounted in a vertical position to maintain unrestricted convection around its heat sinks.
