R911287990 (DKR04.1-W400N-B)
DKR Drive Controllers
Technical Specifications
AdditionalModule
Yes
Ambient Conditions
Yes
Bleeder
No
Maximum Elevation for Installation
1000m Above Sea Level
Integrated With
Mains Contactor
Additional Accessories
Blower, Heatsink
Current Rating
150A at 8kHz
Installation
Back Wall of Control Cabinet
Mounting
Frame Anchoring
Mounting Screws
Yes
Connection
Dry Plug-in Connectors
Sealing Needed
Open Connector Ends
Frequently Asked Questions
Why is a rigid DC bus design significant for systems using this controller?
It avoids brake chopper complexity but demands proper system-level braking solutions, especially in high-inertia load applications.
Can the DKR04.1-W400N-B handle voltage fluctuations in industrial environments?
The unit tolerates standard ±10% supply deviations, but frequent dips or surges may still necessitate line conditioning equipment.
What does a peak current of 282 A imply for motor selection?
It supports high-torque acceleration phases, allowing use with larger servo motors without immediate risk of drive overload.
How does the specified ambient range affect deployment in factory settings?
Operation outside +5 to +45 °C risks thermal stress, so climate control or enclosure cooling is often required in harsher environments.
What is the practical effect of the 2500 W heat dissipation?
Facilities must include ventilation or HVAC capacity to remove this heat load, otherwise ambient rise may impact neighboring electronics.
Common Misspellings
DKR 04.1-W400N-B
DKR04.1.W400N.B
DKR041W400NB
DKRO4.1-W4OON-B
DKR04 1 W400N B
dkr04.1-w400n-b
DKR041W400NB
DKR04 1 W400N B
DKR4.1-W400N-B
Internal Product Review
The DKR04.1-W400N-B drive controller by Bosch Rexroth Indramat operates with 230 VAC control voltage and delivers a peak current of 282 A. It uses air cooling with a built-in blower and supports digital servo and resolver feedback. Commonly used in CNC machinery, printing systems, and factory automation setups.
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