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R911287036 (DKR04.1-W300N-BA03-01-FW)

DKR Drive Controllers

  In-Stock, Ships 3-5 Days
Expedited Lead Times on Select Parts
1 Year Warranty Included
Free Ground Shipping
Expedited Lead Times on Select Parts
1 Year Warranty Included
Free Ground Shipping
The Bosch Rexroth drive controller, MPN R911287036 (DKR04.1-W300N-BA03-01-FW), is configured for precise control of frameless spindle and linear LSF motors utilizing digital motor feedback and resolver support. It accepts a rated power voltage of 3x 400–480 V AC at 50–60 Hz, with a control voltage of 230 V AC (200 VA), and delivers a continuous rated current of 300 A. The default cooling method uses air drawn from outside the cabinet via a built-in blower and integrated heatsink. The enclosure has an IP20 protection rating, with an allowed contamination degree of 2, and operates within temperatures of 5 to 45 °C. Command interfacing is managed through an analog interface, and the design excludes a bleeder/brake chopper. Storage and transport conditions are specified within a -30 to +80 °C range.

View Datasheet

Technical Specifications

Rated Power Voltage
3x 400 to 480 Volts

System Frequency
50 to 60 Hertz

Control Voltage
230 Volts AC

Control Voltage Power
300 VA

Cooling Mode
Air from outside the cabinet

Product Group
DKR

Servo Feedback
Resolver and Digital

Housing Component
Built-in heatsink

Communication
Analog interface

Rated Current
300 Amps

Bleeder
Absent

Terminal Connectors Location
Bottom of device

Protection
Isolating transformers for overvoltage

Condition
Tested for reliability and operating safety

Shipping
Available globally

What type of command interface does the DKR04.1-W300N-BA03-01-FW support?

It uses an analog interface, which simplifies integration with traditional control systems but limits digital networking flexibility. This makes it suitable for retrofitting or hybrid automation environments.

What is the practical impact of its 212 A peak current capability?

This enables short bursts of high torque for acceleration or overcoming load spikes. Applications like heavy machining or press drives benefit from this reserve power.

Can the DKR04.1-W300N-BA03-01-FW operate in high-altitude locations?

It supports up to 1000 m without derating, but higher elevations reduce cooling efficiency. Additional considerations like forced cabinet ventilation or derated operation may be necessary above this altitude.

What happens if the unit is operated outside its 5–45 °C temperature range?

Continuous operation outside this range risks thermal stress, component degradation, or system faults. In high-heat areas, air conditioning or enhanced cooling may be required.

Why does the DKR04.1-W300N-BA03-01-FW weigh 150 kg, and what does that imply for handling?

The weight reflects its power electronics and cooling assembly, requiring lifting equipment for safe installation. Cabinet structures must be reinforced to support its mass.

DKR041W300NBA0301FW

DKR04 1 W300N BA03 01 FW

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Internal Product Review

The Bosch Rexroth Indramat DKR04.1-W300N-BA03-01-FW is a servo drive controller. It provides 212 A peak current and 82 kW continuous power, supports a 3×AC 400–480 V supply, and operates at 4 kHz. It is used in CNC machine tools, high-precision spindle drives, and automated press or printing systems in industrial automation settings.

Warranty

1-year-warranty
Indramat USA 1 Year Warranty

Repair

product repair We offer a repair service for the DKR04.1-W300N-BA03-01-FW.
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