VT-MSPA 1-525-10/V0 Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
The Bosch Rexroth Indramat VT-MSPA 1-525-10/V0 is part of the VT-VSPA Proportional Amplifiers series and features a supply voltage of 24 V DC with a power consumption of 60 VA. This amplifier has a clocked current controller output type, uses a 10-pole screw terminal connector, and weighs 0.31 kilograms. It supports a solenoid power of 55 VA and includes a potentiometer value of 10 kΩ.
Internal Product Review
The VT-MSPA 1-525-10/V0 is a proportional amplifier with a clocked current controller output and a 10-pole screw terminal. A 24 V DC supply and 2.5 A solenoid current support stable valve actuation in demanding hydraulic control circuits. Strong signal handling from the 100 kΩ input resistance makes this unit a dependable choice for precise proportional control.
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Product Description:
The VT-MSPA 1-525-10/V0 is a single-stage proportional amplifier card manufactured by Bosch Rexroth Indramat within the VT-VSPA Proportional Amplifiers series. Designed for hydraulic motion control, the board converts low-level command signals into a regulated current for spool-type or poppet proportional solenoids used in industrial automation. Its single-stage topology keeps signal latency low, which supports responsive control of the connected hydraulic element.
The card operates from a 24 V DC supply and its own current consumption peaks at 2.5 A when energizing a proportional solenoid. Under those conditions, the amplifier draws up to 60 VA of apparent power. Command inputs can be voltage-based or current-based; a 0–10 V reference is supported, with the nominal setpoint taken at 10 V, or alternately at 10 mA when the current mode is selected. The input stage presents 100 kΩ of resistance so the upstream controller is not heavily loaded, and a built-in 10 kΩ potentiometer allows local gain trimming. Pulse-width modulation in the clocked current controller maintains the demanded solenoid current while connections for supply, command, and load lines are made on the 10-pole screw terminal.
Physical dimensions suit DIN-rail or panel slots common in machine cabinets. The card stands 70.5 mm tall, measures 86 mm across the front, and extends 110 mm in depth, so it fits behind shallow cabinet doors. With only 0.31 kg of mass, it imposes minimal load on mounting hardware and remains easy to handle during service. Despite its compact size, the PCB still accommodates the clocked driver stage, heat-spreading copper for the 55 VA solenoid load, and clearly marked test points, while enclosure clearance leaves space for adjacent wiring ducts.
