Bosch Rexroth VT-MSPA1-2X/A5/000/000 proportional valve amplifier
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Hydraulic proportional valve amplifier

Bosch Rexroth VT-MSPA1-2X/A5/000/000 proportional valve amplifier
Model: VT-MSPA1-2X/A5/000/000 · Bosch Rexroth
Digital input functionsEnable; ramp on/off; single/quadrant ramp; permanent enable according to selected setup
Maximum supply voltage (V DC)36
Mounting formatDIN rail module
Maximum ambient temperature (°C)60
Ingress protectionIP20
Full specifications ↓ Technical catalog · PDF

Description

VT-MSPA1-2X/A5/000/000, manufacturer material number R901439034, is a Bosch Rexroth analog DIN-rail amplifier for proportional hydraulic valves without electrical position feedback. It controls one solenoid output and uses a 0 to +10 V command signal. Stored valve characteristics are selected with the valve-type switches; ramp, zero point, step and current parameters are adjustable.

The nominal supply is 24 V DC within 18–36 V DC. When the selected valve has a maximum solenoid current of 0.8 A, the lower supply limit is 21 V. The output-stage capability is 2.7 A, but actual allowable current and clock frequency depend on the selected valve and settings. Ramp times are adjustable from 0.01 to 30 s. The digital input can provide enable or the documented alternative ramp/inversion functions, depending on setup.

The IP20 module mounts vertically on TH35-7.5 or TH35-15 rail with detachable spring terminals. Ambient operation is 0–60 °C; leave at least 2 cm clear above and below the ventilation slots and 1 cm to adjacent assemblies above 50 °C. The valve, cabling and power supply are selected separately.

Technical reference: RE30232, edition 2020-09. Representative manufacturer MSPA series amplifier photograph; selected electrical execution and parameters are identified by the full factory designation.

Full specifications

Technical specifications
Component type Hydraulic proportional valve amplifier
Maximum supply voltage (V DC) 36
Minimum supply voltage (V DC) 18
Nominal supply voltage (V DC) 24
Output current capability (A) 2.7
Mounting format DIN rail module
Mounting rail TH35-7.5 or TH35-15,EN60715
Maximum ambient temperature (°C) 60
Minimum ambient temperature (°C) 0
Series 2X
Command input 0 to+10 V
Compatible valve application Select manufacturer stored valve type and correct coil execution from the documented assignment table
Digital input functions Enable; ramp on/off; single/quadrant ramp; permanent enable according to selected setup
Electrical connection 12 detachable spring-type terminals
Factory model code VT-MSPA1-2X/A5/000/000
Installation conditions Vertical; at least 2 cm clear above/below ventilation slots; above 50 °C ambient leave1 cm to next assembly
Manufacturer Bosch Rexroth
Manufacturer part number R901439034
Maximum ramp time (s) 30
Minimum ramp time (s) 0.01
Product family VT-MSPA
Solenoid output channels 1
Supply and output conditions 18–36 VDC; use at least 21 V with 0.8 A valve maximum current.2.7 A output is capability, limited by selected valve and parameterization.
Valve feedback Without electrical position feedback
Catalog weight (kg) 0.14
Technical specifications
Ingress protection IP20