VT-VRPA2-537-10/V0/RTS Bosch Rexroth Indramat
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The Bosch Rexroth Indramat VT-VRPA2-537-10/V0/RTS is part of the VT-VRPA Electric Amplifiers series and operates at a voltage range of 21 to 40 V DC with a maximum current draw of 2.5 Amps. It features a DIN 41612-F32 connector, actual value feedback of 10.2 Veff at 7.8 kHz, and has a solenoid current maximum of 3.7 Amps. Its input resistance is 100 kOhms, and it weighs 0.43 kilograms.
Internal Product Review
The VT-VRPA2-537-10/V0/RTS is a Bosch Rexroth electric amplifier designed for stable proportional valve control with a 24 V DC operating voltage and 3.7 A maximum solenoid current. A 100 kΩ input resistance paired with DIN 41612-F32 connectivity supports clean signal handling and straightforward panel integration. Strong electrical capacity and dependable control response make the amplifier a very capable choice for hydraulic drive systems.
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Product Description:
The VT-VRPA2-537-10/V0/RTS is an electric amplifier card manufactured by Bosch Rexroth Indramat for the VT-VRPA Electric Amplifiers series. Designed for industrial hydraulic systems, the card converts command voltages from a machine controller into regulated solenoid current. This conversion enables proportional spool positioning and stable modulation of flow or pressure in automated machinery. The card fits a standard rack-based control architecture and provides both analog control functions and electrical outputs for connected equipment.
The card uses a nominal supply of 24 V DC and operates between 21 V DC and 40 V DC, allowing it to tolerate common control-cabinet voltage fluctuations. The input signal path has a resistance of 100 kΩ, which prevents excessive loading of PLC analog outputs. Actual-value feedback is produced at 10.2 Veff and 7.8 kHz for closed-loop monitoring. The amplifier can draw up to 2.5 A from the supply and deliver a maximum load current of 3.7 A to the connected valve solenoid. Solenoid power is limited to 50 VA, helping control coil temperature, while the maximum ripple remains below 10 percent. A DIN 41612-F32 edge connector carries the power, command, and feedback lines between the card and the rack. The brushed aluminum front plate has a width of 7 TE, allowing the card to fit standard 19-inch subrack slots.
A dedicated switching output supplies up to 100 mA, allowing the card to operate relays or status lamps without an additional interface module. A front-panel 1 kΩ command potentiometer supports local adjustment of the command level independently of the host controller. Internal rails provide positive and negative 10 V reference outputs, each rated for 50 mA, to support external sensors and symmetric offset signals. The upper supply threshold protects the circuitry from excessive input voltage, and the regulated output stage helps protect downstream loads. All components are mounted on a compact printed circuit board with a mass of 0.43 kg, which reduces the mechanical load placed on the rack assembly.
