VT-VRPA1-50-10a/V0/0 Bosch Rexroth Indramat
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MPN: R900952202
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The Bosch Rexroth Indramat VT-VRPA1-50-10a/V0/0 belongs to the VT-VRPA Electric Amplifiers series and operates with a nominal supply voltage of 24 V DC and a typical power consumption of 37 W. The amplifier supports a current rating of 1.5 A and features dimensions of 160 mm by 100 mm with a height of 35 mm. It is equipped with a DIN 41612-F32 plug connector and uses a 4700 microfarad smoothing capacitor rated at 63 V DC.
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Product Description:
The VT-VRPA1-50-10a/V0/0 is an electronic amplifier card manufactured by Bosch Rexroth Indramat for the VT-VRPA Electric Amplifiers series. It plugs into a 32-position backplane connector and conditions reference signals so that downstream drives or valves receive stable, proportionally regulated power. By converting a control voltage or a potentiometer command into a precise power output, the board supports consistent motion or process control inside automated equipment.
The board operates from a nominal supply of 24 V DC and draws up to 37 W, while its peak current requirement is 1.5 A. Energy storage is handled by a 4700 µF / 63 V DC smoothing capacitor that attenuates ripple when the input comes from the rectified 21–28 V AC range or from batteries between 21 V DC and 40 V DC. Control wiring is connected through a DIN 41612-F32 plug connector, which supports standardized mating racks and straightforward system integration. A 10 kΩ signal-source potentiometer can be powered by the onboard 10 mA reference supply. A 20 kΩ pilot-feedback leg returns the actuator position so the card can generate an error signal and adjust its output accordingly.
The printed circuit measures 160 mm in length, 100 mm in width, and only 35 mm in height, allowing dense stacking inside control cabinets. Thermal dissipation from this compact footprint remains manageable because typical power consumption stays below the continuous limit. The command stage offers a total setpoint input resistance of 100 kΩ, minimizing the load on upstream PLC analog outputs, while separate terminals accommodate the 10 kΩ feedback potentiometer and 20 kΩ pilot network. These connections allow the card to compare the command signal with actuator feedback and regulate the connected load without placing excessive demand on the signal source.
