RD51.2-4B-003-L-NN-FW
Wake Industrial LLC is not an authorized distributor of this product.
MPN: R911201235
No Tariffs On US Orders- Straightforward Pricing: No Rush Fees, No Credit Card Fees
The RD51.2-4B-003-L-NN-FW drive controller has a power rating of 3 HP (2.2 kW), an operating voltage range of 3-phase 380-480V AC, a frequency range of 47 to 63 Hz, and fan cooling with integrated braking chopper. Part of the RD 500 Drive Controllers series by Bosch Rexroth Indramat, it features IP20 protection.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The RD51.2-4B-003-L-NN-FW is classified as a power converter which is designed by Bosch to tailor electrical output for motors and other load specific industrial automation applications.
The RD51.2-4B-003-L-NN-FW controller makes use of an active airflow system to remove heat and relies on fans or similar mechanisms to direct air across internal components which helps regulate internal temperature during operation, especially when installed in enclosures with little or no ventilation. It is capable of delivering a continuous apparent power of 4.9 kilovolt amperes and its lowest permissible resistance that can be connected across the braking circuit is equivalent to 60. The steady mechanical power that the drive can support when connected to a motor or load is 3 kWs which makes it suitable for moderate industrial automation machinery and its internal braking chopper that dissipates surplus energy during deceleration, can handle a sustained power input of up to 1500 watts. It can modulate its electrical output over a broad frequency span such as from a full stop at 0 Hz up to 250 Hz which enables fine speed control over connected motors that includes high speed or specialized motors that function above 50 to 60 hertz standard frequency.
This RD 500 series drive controller braking energy management system is integrated directly within its housing which eliminates the need for an external braking unit and simplifies installation while safely dissipating energy in the event of sudden stops or reversing load conditions. It is built to continuously supply a nominal electric current of 7.5 amperes continuously which is enough for motors that draw moderate amperage under full load conditions and it is capable of providing up to 6.5 kilovolt amperes of apparent power for up to sixty seconds.
Frequently Asked Questions about RD51.2-4B-003-L-NN-FW:
Q: How does the forced air cooling system benefit the RD51.2-4B-003-L-NN-FW converter?
A: The active airflow helps maintain optimal internal temperatures during extended use. This improves reliability and extends the life of sensitive electronic components.
Q: Why is a brake chopper integrated into the RD51.2-4B-003-L-NN-FW controller?
A: The integrated brake chopper safely handles regenerative energy during deceleration. It simplifies setup and reduces space and wiring complexity.
Q: How does 250 Hz output frequency enhance the RD51.2-4B-003-L-NN-FW’s performance?
A: Higher frequency output enables the drive to control high-speed motors effectively. It’s useful for specialized equipment that operates above standard 60 Hz limits.
Q: What happens if a braking resistor below 60 ohm is connected to this converter?
A: Connecting a resistor under 60 ohms could cause overheating or component failure. Always use a resistor within the rated resistance value to ensure safe operation.
Q: Is the RD51.2-4B-003-L-NN-FW suitable for environments with poor ventilation?
A: Yes, its forced-air cooling design allows installation in tight or poorly ventilated spaces. This improves flexibility in industrial cabinet layouts.
