KDS 1.1-050-300-W1-115 Bosch Rexroth Indramat
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MPN: R911234600
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The Bosch Rexroth Indramat KDS 1.1-050-300-W1-115 is a servo-drive module from the KDS Servo Drive Modules series with a power output of 15 kW and a rated current of 50 Amps. It uses forced ventilation for cooling with an external LE4 fan operating at AC 115 V, 50 to 60 Hz. The unit weighs 14.4 kilograms and has a permissible ambient temperature range of 5 to 45 degrees Celsius.
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Product Description:
The KDS 1.1-050-300-W1-115 is a servo-drive module produced by Bosch Rexroth Indramat for the KDS Servo Drive Modules series. Installed in multi-axis drive racks, the unit conditions DC bus power and supplies regulated current to matched motor inverters, allowing coordinated motion in automated machining centers, handling systems, and packaging lines. By combining control electronics with a dedicated cooling section, the module supports continuous cyclic operation in industrial environments that require precise torque and speed control. Its role in the rack is to help connected axes respond consistently during repeated starts, stops, and speed changes.
This model delivers a continuous current of 50 A, providing the inverter stages with ample current capacity for mid-range servo motors. Heat generated during conversion is removed through forced ventilation; an axial blower directs air across the heat sink so semiconductor junction temperatures remain within rated limits. The DC bus is maintained at 300 V DC with a tolerance of ±15%, matching Indramat supply units that rectify three-phase mains. During operation, the drive dissipates 220 W of external power loss, and this value should be considered when planning cabinet airflow. These operating conditions allow the module to remain suitable for coordinated motion systems that run through frequent acceleration and deceleration cycles.
The unit can exchange a nominal power output of 15 kW with connected converters, while the integral fan uses a dedicated 115 V fan supply at 50–60 Hz and is protected by a cartridge fuse. Operation is permitted up to 1000 m above sea level; above this altitude, derating is required to offset lower air density. Enclosure protection is limited to IP10, so installation inside a closed cabinet is required rather than on an exposed machine surface. The aluminum chassis and attached blower give the drive a total mass of 14.4 kg, and the recommended ambient temperature range is 5 °C to 45 °C. This combination of electrical capacity, cooling support, and cabinet-only installation suits enclosed industrial control assemblies.
Frequently Asked Questions about KDS 1.1-050-300-W1-115:
Q: What is the continuous current rating for the KDS 1.1-050-300-W1-115 drive?
A: The KDS 1.1-050-300-W1-115 servo drive module can deliver a continuous current of 50 A for demanding applications.
Q: How is cooling managed in the KDS 1.1-050-300-W1-115 servo drive module?
A: This drive features forced ventilation cooling and utilizes an external LE4 fan unit for efficient heat dissipation.
Q: What is the link circuit DC voltage for the KDS 1.1-050-300-W1-115?
A: The KDS 1.1-050-300-W1-115 operates with a link circuit DC voltage of 300 V, allowing a tolerance of ±15%.
Q: How much power output does the KDS 1.1-050-300-W1-115 provide?
A: The maximum power output of this servo drive module is 15 kW, suitable for high power requirements.
Q: What is the maximum permissible mounting altitude for the KDS 1.1-050-300-W1-115?
A: This model allows for installation at altitudes up to 1000 meters above sea level.
