VT-MRPA2-2-11/V0/0 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat VT-MRPA2-2-11/V0/0 is part of the VT-VSPA Proportional Amplifiers series and operates with a nominal supply voltage of 24 VDC. It features two solenoid outputs, twelve terminals, and a 4/3 valve function for valve size 10. The amplifier has a protection rating of IP20, weighs 0.14 kg, and is designed for mounting on a TH 35-7.5 rail.
Internal Product Review
The VT-MRPA2-2-11/V0/0 is a Bosch Rexroth Indramat proportional amplifier that stands out for precise electrohydraulic control with a 24 VDC nominal supply. Support for a ±10 V command input and 2-solenoid operation gives this unit responsive and stable control behavior. TH 35-7.5 rail mounting and IP20 protection make this a very practical amplifier for control cabinet integration.
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Product Description:
The VT-MRPA2-2-11/V0/0 is a proportional amplifier produced by Bosch Rexroth Indramat for the VT-VSPA Proportional Amplifiers series. Mounted on a DIN rail inside a control cabinet, the module drives up to two solenoid coils on a directional valve, allowing precise flow modulation in industrial hydraulic circuits. It operates from a regulated control bus and converts low-level analog commands into the higher current required by valve actuators. This arrangement allows a control system to adjust hydraulic flow without applying the command signal directly to the solenoid coils.
The amplifier has a nominal supply voltage of 24 VDC and accepts a differential control signal of ±10 V, which the onboard electronics convert into proportional coil current. Protective circuitry keeps the board functional between a lower voltage limit of 18 V and an upper voltage limit of 35 V, providing tolerance for battery-backed or unregulated switch-mode supplies. During operation, the unit draws less than 2 A, and its total power consumption stays below 24 VA, so heat generation remains low even when both outputs are active. Two independent channels energize the paired solenoids, while twelve screw terminals provide separate connection points for the supply, command, feedback, and valve wiring. Installation uses a TH 35-7.5 rail profile, allowing the module to be secured inside a cabinet without a separate mounting plate.
The amplifier is designed for NG10 directional valves with a 4/3 spool configuration, and it delivers the polarity-reversed output patterns required for the center, left, and right positions. The housing has an IP20 rating, so the module is intended for sheltered installation inside a control cabinet rather than direct exposure in the field. Its housing measures 40 mm wide, 85.5 mm deep, and 79 mm high, allowing multiple DIN-rail modules to fit within a compact panel layout. With a mass of only 0.14 kg, the unit places little mechanical load on the rail clips. The compact housing also leaves room for adjacent wiring ducts and helps keep terminal connections accessible during routine inspection.
