Description
Product Overview
The Bosch Rexroth VT-VACAP-500-20/V0 is an electronic proportional amplifier card identified by manufacturer number 0811405157. It belongs to the Rexroth VT family of electronic control equipment and is classified in component records as a proportional card. Its role is associated with the electronic control of proportional hydraulic functions, where electrical command signals are processed to regulate the response of a proportional valve or related hydraulic actuator. The exact valve family and machine configuration for this particular version should be established from the original equipment documentation rather than inferred from the model designation alone.
In a hydraulic control system, proportional amplifier electronics are important because the electrical command must correspond predictably to the required hydraulic response. A replacement card therefore needs more than a matching external shape. Engineers should compare the complete VT-VACAP-500-20/V0 designation, manufacturer number 0811405157, connector arrangement, supply requirements, command input, and valve feedback configuration where applicable. The available identification records confirm the model and its proportional-card classification, but do not establish a complete electrical specification.
For maintenance and procurement teams, the Bosch Rexroth VT-VACAP-500-20/V0 should be treated as an application-specific control component. Before installation, confirm the original card’s wiring and parameter settings, inspect connector condition, and verify that the replacement matches the existing hydraulic control circuit. Incorrect amplifier selection can produce unexpected valve response, unstable motion, or failure to achieve the intended actuator position. Where the original documentation is unavailable, the machine model and photographs of the card’s label and connectors are useful starting points for identification.
Product Introduction (Non-Templated)
A hydraulic proportional valve depends on the correct electronic command to produce controlled actuator movement. The VT-VACAP-500-20/V0 is identified as a Rexroth proportional amplifier card, with 0811405157 serving as its manufacturer number.
The critical replacement check is the complete control configuration. Confirm the valve type, electrical supply, command signal, connector layout, and any feedback wiring before commissioning.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | VT-VACAP-500-20/V0 |
| Manufacturer | Bosch Rexroth |
| Manufacturer Number | 0811405157 |
| Product Type | Proportional amplifier card |
| Product Family | Rexroth VT electronic control |
| Primary Function | Proportional hydraulic control signal amplification |
| Hydraulic Valve Compatibility | Not verified |
| Supply Voltage | Not verified |
| Command Input Signal | Not verified |
| Output Current | Not verified |
| Feedback Input | Not verified |
| Communication Protocol | Not verified |
| Operating Temperature | Not verified |
| Mounting / Installation | Confirm from original assembly |
| Connector Configuration | Confirm from unit label and hardware |
| Firmware / Parameter Version | Not verified |
Technical caution: Do not assign voltage, current, input range, or valve compatibility based on another Rexroth VT amplifier model. The exact values for 0811405157 require manufacturer documentation or physical verification.
VT-VACAP-500-20V0 0811405157
Related Products
The following Rexroth components are useful references when identifying proportional amplifier equipment. They are not confirmed direct replacements for 0811405157.
- VT-VRPA1-537-10/V0 – Rexroth proportional amplifier card; a different model designation requiring separate electrical and application checks.
- VT-VPRAP1-540-10/V0 – Another Rexroth electronic control card. Verify its function and hardware configuration independently.
- VT-VSPA2-1-10C/T5 – Rexroth amplifier card designation; do not assume identical valve compatibility.
- VT-5041-30/V30D – Rexroth control card with a different model designation and application configuration.
- VT5004S22 R5 – Rexroth electronic control card; verify the original machine application before considering it.
Frequently Asked Questions
Q1: What is the Bosch Rexroth VT-VACAP-500-20/V0 used for?
It is identified as a proportional amplifier card. Its role is associated with electronic control of proportional hydraulic functions. The exact valve and machine application should be confirmed using the original equipment documentation.
Q2: Is 0811405157 the correct manufacturer number for VT-/V0?
Yes. The model designation and manufacturer number 0811405157 are listed together in component identification records.
Q3: Can I hot-swap this amplifier card?
Do not assume hot-swap capability. Isolate electrical power and follow the hydraulic system’s shutdown procedure before removing the card. Stored hydraulic pressure and unexpected actuator movement must also be considered.
Q4: Does this support firmware v3.1?
No verified firmware v3.1 compatibility information is available for this exact model. Check the original card revision, machine control documentation, and any associated parameter or programming records.
Q5: Can I replace it with another Rexroth proportional amplifier?
Not without confirming the electrical and hydraulic interface. Supply voltage, command signal, output stage, feedback requirements, valve characteristics, and connector configuration must match.
Q6: What should I check before purchasing a replacement?
Confirm the complete model number, 0811405157 manufacturer number, label revision, connector arrangement, and original machine application. Request photographs of the actual card and applicable inspection or functional test records.
Q7: How can I verify a refurbished VT-/V0?
Ask for confirmation that the unit carries the correct manufacturer number and has undergone inspection and functional testing. Where possible, request test results under the relevant operating conditions and confirmation that connectors and components show no signs of damage.
Procurement recommendation: Use both identifiers—VT-/V0 and 0811405157—when requesting a replacement. The exact electrical specification and valve compatibility remain unverified, so a photograph of the original nameplate and connector side is the best next step before approving interchangeability.
