VT-MRPA1-2-10/V0/0 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat VT-MRPA1-2-10/V0/0 is a proportional amplifier from the VT-VSPA Proportional Amplifiers series with an operating voltage of 24 VDC and a power consumption under 24 VA. It offers a maximum output stage current of 1.85 Amps and connects via 12 screw terminals. This IP20 device has dimensions of 40 by 79 by 85.5 millimeters and weighs 0.14 kilograms.
Internal Product Review
The VT-MRPA1-2-10/V0/0 is a Bosch Rexroth Indramat proportional amplifier designed for stable valve control in industrial hydraulic circuits. A 24 VDC operating voltage and TH 35-7.5 rail mounting support straightforward panel integration in standard control cabinets. The >50 kΩ command input resistance and 1.85 A maximum output stage current give the unit precise signal handling and dependable drive capability.
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Product Description:
The VT-MRPA1-2-10/V0/0 is a proportional amplifier module produced by Bosch Rexroth Indramat for the VT-VSPA Proportional Amplifiers series. It installs on a DIN-mounted rail inside a control cabinet and converts a low-level command signal into a regulated drive current, allowing automated equipment to modulate motion or force with precise slope control. Designed for industrial control circuits, the module integrates ramp generators, an oscillator stage, and overload protection within a compact housing.
The voltage interface presents an input resistance higher than 50 kΩ, so upstream controllers experience negligible loading. Normal operation is centered on a supply of 24 VDC; below 18 V, undervoltage monitoring disables the output, while internal limits protect the components above 35 V. Front-face jumpers and potentiometers adjust ramp generators from a minimum rise time of 20 ms up to five seconds, allowing acceleration to be adjusted without external timers. The enclosure satisfies the IP20 ingress protection class, which prevents fingers or similar objects from touching live parts, but the module must be installed in a closed panel for dust protection. With a steady-state power draw of less than 24 VA, the amplifier adds little heat to the cabinet and typically draws less than 2 A from the supply.
The power section can deliver up to 1.85 A of controlled current, matching many proportional solenoids while remaining within the oscillator’s 10 mA pilot rating. Overall dimensions of 40 × 79 × 85.5 mm permit side-by-side placement on a TH 35-7.5 rail, and the module weighs only 0.14 kg, making it easier to handle during installation or removal. The module has 12 screw terminals that provide secure wiring points for command, feedback, and supply lines. Oscillator amplitude is fixed at 2 V to keep dithering consistent across changing load conditions.
