RD52.1-4B-018-L-V1-G3-T1-FW Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
MPN: R911289243
Ask for AvailabilityThe Bosch Rexroth Indramat RD52.1-4B-018-L-V1-G3-T1-FW is a drive controller from the RD 500 Drive Controllers series. It operates with a rated power of 18.5 kW and supports a voltage range of 380 to 480 V with a ±10% tolerance. This model features field oriented vector control, integrated mains filter, and a built-in brake chopper.
Internal Product Review
The RD52.1-4B-018-L-V1-G3-T1-FW is a Bosch Rexroth Indramat drive controller with field oriented vector control and a built-in brake chopper. Forced air cooling and an integrated mains filter support stable operation and cleaner cabinet integration in demanding drive systems. Rated at 18.5 kW across a 380 to 480 V range, the unit stands out as a capable solution for consistent industrial motion control.
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Product Description:
Bosch Rexroth Indramat manufactures the RD52.1-4B-018-L-V1-G3-T1-FW in the RD 500 Drive Controllers series. The unit is a three-phase inverter that governs induction or synchronous motors in automated lines, letting the connected machine match commanded speed and torque to changing load conditions. It belongs to generation 1 of the platform and is intended for installation inside a control cabinet where it interfaces with upstream PLC logic and downstream power hardware. This arrangement supports coordinated motor control in applications that need steady speed regulation and responsive acceleration.
The controller processes current vectors with field-oriented vector control, so stator currents are separated into torque-producing and flux-producing components for fast dynamic response. Rated output is 18.5 kW, which suits mid-range conveyors, pumps, extruders, and similar machinery. Mains terminals accept 380 to 480 V, allowing operation on common industrial low-voltage networks. The power stage is built as a 3 x AC converter, meaning it rectifies three-phase input and inverts the DC bus back into controlled AC for the motor. Component tolerances on supply magnitude, control thresholds, and internal sensors are held within ±10%, helping the drive maintain predictable response during normal utility variation.
An internal built-in brake chopper routes regenerated energy from rapid deceleration to an external resistor, preventing DC-bus overvoltage without extra modules. Thermal management relies on forced air cooling; the housing includes a fan that draws cabinet air across the heat sink to keep semiconductor temperatures within operating limits. A line-side integrated mains filter attenuates high-frequency switching noise and reduces conducted emissions toward the plant transformer. Control electronics remain powered during mains loss through 24 V standby power supplied from an external source, so the keypad, fieldbus interface, and fault memory remain available during an orderly shutdown or diagnostic review.
