Electrical Measurement & Monitoring · Voltage Transducers
VDT-20 DIN Rail AC Voltage Transducer
VDT-20 single-channel AC voltage transducers combine three standard input ranges with 4-20mA, 0-5V, 0-10V or RS485 output and 24V DC auxiliary supply.
0-100V to 0-500V ACThree standard input ranges
4 OutputsCurrent, voltage and RS485 options
0.5%Supplier-listed accuracy
35mm DIN RailMounting format
Product Overview
VDT-20 is a one-input, one-output AC voltage transducer for converting a selected AC voltage range into a standardized analog output or RS485 signal. Three documented input ranges and four output types form 12 standard configurations with a common 24V DC auxiliary supply.
Key Features
- Single-channel AC voltage measurement
- 0-100V, 0-300V and 0-500V AC inputs
- 4-20mA DC, 0-5V, 0-10V and RS485 outputs
- 24V DC auxiliary supply
- Supplier-listed 0.5% accuracy
- 35mm DIN-rail mounting
- Compact 108 x 47 x 25.4mm maximum dimensions
Available Configurations
Select one AC input range and one output signal. All listed standard configurations use 24V DC auxiliary supply.
| Configuration | AC Input Range | Output Signal | Auxiliary Supply |
|---|---|---|---|
| VDT-20 0-100V / 4-20mA | 0-100V AC | 4-20mA DC | 24V DC |
| VDT-20 0-100V / 0-5V | 0-100V AC | 0-5V | 24V DC |
| VDT-20 0-100V / 0-10V | 0-100V AC | 0-10V | 24V DC |
| VDT-20 0-100V / RS485 | 0-100V AC | RS485 | 24V DC |
| VDT-20 0-300V / 4-20mA | 0-300V AC | 4-20mA DC | 24V DC |
| VDT-20 0-300V / 0-5V | 0-300V AC | 0-5V | 24V DC |
| VDT-20 0-300V / 0-10V | 0-300V AC | 0-10V | 24V DC |
| VDT-20 0-300V / RS485 | 0-300V AC | RS485 | 24V DC |
| VDT-20 0-500V / 4-20mA | 0-500V AC | 4-20mA DC | 24V DC |
| VDT-20 0-500V / 0-5V | 0-500V AC | 0-5V | 24V DC |
| VDT-20 0-500V / 0-10V | 0-500V AC | 0-10V | 24V DC |
| VDT-20 0-500V / RS485 | 0-500V AC | RS485 | 24V DC |
Technical Specifications
| Model | VDT-20 |
|---|---|
| Measurement Type | AC voltage |
| Channel Configuration | One input / one output |
| Standard Input Ranges | 0-100V AC / 0-300V AC / 0-500V AC |
| Output Options | 4-20mA DC / 0-5V / 0-10V / RS485 |
| Auxiliary Supply | 24V DC |
| Accuracy | 0.5% |
| Mounting | 35mm DIN rail |
| Maximum Dimensions | 108 x 47 x 25.4mm |
Frequency range, response time, isolation rating and output-load limits are not included because the available exact-family evidence does not confirm them.
Applications
The supporting image illustrates a general industrial electrical environment and does not show this product installed.
Electrical Control Cabinets
Conversion of an AC voltage signal for compatible PLC, controller or monitoring inputs.
Power Distribution Monitoring
DIN-rail voltage signal conversion for panel monitoring and data acquisition.
Industrial Automation Systems
Standardized analog or RS485 voltage measurement where the selected input/output pair matches the control system.
Information to Confirm for Selection
- Required AC input range
- Required output signal
- 24V DC auxiliary supply availability
- Analog receiving-input range or RS485 requirement
- DIN-rail space and terminal access
- Quantity and application
FAQ
Does VDT-20 measure AC or DC voltage?
The selected VDT-20 family is documented as an AC voltage transducer.
Are 0-5V and 0-10V input ranges?
No. They are output-signal options. The standard measured inputs are 0-100V, 0-300V and 0-500V AC.
What auxiliary supply is used?
The standard documented supply option used on this page is 24V DC.
Is an RS485 version available?
Yes. RS485 is one of four documented output options. Protocol details are not claimed in the available evidence.
Related Products
Request a Quote
Provide the required AC input range, output signal, receiving-device interface, quantity and application.