03.S4.087-D219 KEB
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The KEB 03.S4.087-D219 is part of the S4 Combivert Servo Controllers series. This controller offers a peak current of 8.5 Amps for 1200 milliseconds and a rated output current of 2.4 Amps. It features IP20 protection and dissipates 65 Watts of heat, with maximum motor line length up to 50 meters.
Internal Product Review
The 03.S4.087-D219 is a KEB S4 Combivert servo controller that delivers a 2.4 A rated output current. Peak capability of 8.5 A for 1200 ms gives the controller strong short-term overload performance during dynamic motion demands. IP20 protection and support for motor line lengths up to 50 m make this controller a very capable choice for clean cabinet installations.
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Product Description:
The 03.S4.087-D219 servo controller is produced by KEB as part of the S4 Combivert Servo Controllers series. It is designed to modulate three-phase motor torque and speed within automated machinery, converting line power into a regulated output that tracks motion commands from a PLC or CNC. By coordinating current supply and feedback, the unit serves as the intermediary between control logic and the electromechanical axis, enabling closed-loop positioning in conveyors, gantry axes, or packaging lines. The controller also manages axis response during speed changes and positioning moves, helping the machine maintain stable motion under changing load conditions.
The housing measures 240 mm tall, 90 mm wide, and has a depth of 160 mm, so the unit fits a narrow cabinet column while still requiring airflow clearance above and below. Electrical safety inside the cabinet is aided by an enclosure rating of IP20, meaning live parts are finger-safe but the drive must be mounted in a protected environment. Its continuous output channel supplies 2.4 A to the motor windings, and temporary overload conditions are handled by a peak current of 8.5 A that the drive can sustain for 1200 ms before returning to nominal operation. This overload capability supports brief acceleration demands and short transients without requiring a larger controller for normal running conditions.
The unit meets DIN EN 60721-3-3 class 3K3, so operation is intended for control rooms where ambient temperature and dust levels stay within light industrial limits. Humidity tolerance reaches 95%, provided condensation is prevented, which supports installation in HVAC-controlled enclosures near washdown zones. Motor cabling may run up to 50 m without violating rise-time or leakage constraints, and the internal dissipation of 65 W calls for cabinet ventilation to maintain semiconductor junction temperatures. Additional operating limits include a 2000 m altitude ceiling, 1.5 mm² minimum line conductors, a stall current capability of 6.4 A, and 5 mm mounting holes for direct backplate fastening.
