The VT-VRPA1-527-10/V0/QV-RTP is a high-performance module in the VT-VRPA Electric Amplifiers series, designed and manufactured by Bosch Rexroth Indramat for precise hydraulic valve control. This electric amplifier features advanced Actuation: Proportional solenoid, external amplifier technology, delivering responsive and accurate positioning of directional spool valves. Rated for a Working Pressure: 250 bar (ports A, B, T), it provides robust performance under demanding conditions. Its compact Connection Type: Subplate format with standard ISO interfaces ensures easy integration into existing hydraulic circuits. With an IP65 rating and durable housing, this amplifier is engineered for longevity in industrial automation environments.
Technical capabilities of the VT-VRPA1-527-10/V0/QV-RTP include a broad Fluid Temperature Range: –20°C to +80°C compliant with Hydraulic Fluid Standard: DIN 51524, allowing operation in diverse environments. The amplifier maintains exceptional precision thanks to Hysteresis: <1% and Position Control: PID behavior with external ramp adjustment, ensuring stable valve positioning. It supports Nominal Flow Rate (NG10): 80 L/min and Nominal Flow Rate (NG6): 2.6/10/35 L/min for both NG10 and NG6 subplate configurations, while managing Pressure Drop: 4–8 bar (NG6, NG10) across control ports. Electrical performance is optimized with a Max Power Consumption: 40 W and a Solenoid Max Current: 2.7 A, making it energy-efficient yet powerful.
Operational features emphasize reliability and ease of use. The module is protected to Degree of Protection: IP65, safeguarding internal electronics against dust and water ingress. Mechanical mounting is simplified via Mounting Hole NG10: ISO 4401-05-04-0-94 and Mounting Hole NG6: ISO 4401-03-02-0-94 patterns, while screw terminal connections ensure secure wiring. CE and UL approvals underline compliance with international safety standards. The amplifier operates reliably across –20 to +50 °C ambient temperatures and tolerates up to 90% relative humidity without performance degradation.
Integration of the VT-VRPA1-527-10/V0/QV-RTP into hydraulic systems is seamless: its standard subplate interface supports direct installation on NG6 and NG10 valve manifolds. Engineers can leverage its PID-based position control and external ramp adjustment to fine-tune dynamic response in packaging machines, mobile equipment, and industrial presses. With compliance to DIN hydraulic standards and robust electrical and environmental ratings, this amplifier ensures consistent, precise fluid power control in automated systems.
Actuation
Proportional solenoid, external amplifier
Connection Type
Subplate
Degree of Protection
IP65
Fluid Temperature Range
-20°C to +80°C
Hydraulic Fluid Standard
DIN 51524
Hysteresis
<1%
Max Power Consumption
40 W
Mounting Hole NG10
ISO 4401-05-04-0-94
Mounting Hole NG6
ISO 4401-03-02-0-94
Nominal Flow Rate (NG10)
80 L/min
Nominal Flow Rate (NG6)
2.6/10/35 L/min
Position Control
PID behavior with external ramp adjustment
Pressure Drop
4-8 bar (NG6, NG10)
Solenoid Max Current
2.7 A
Working Pressure
250 bar (ports A, B, T)