Description
NK VTR2-420-24L-DIN – AC Voltage Transducer, VTR Series

- Voltage Range = 150 V
- Output Type = 4-20 mA
- Supply Voltage = 24 V loop-powered
- Mounting = DIN rail compatible
VTR Series AC Voltage Transducers are high-performance True RMS transducers for sensing voltage in single- and three-phase installations. Applicable on circuits of 120 V, 240 V, 480 V and 600 V, the VTR Series voltage transducers provide a fully isolated, 4-20 mA output proportional to rated voltage in sinusoidal situations. Housed in a slim, compact, easy-to-install DIN rail mounted case, the VTR Series comes in a variety of voltage ranges and with four-wire terminal block connection.
Phase Loss Protection

Voltage Transducer Applications
True RMS Voltage Monitoring
- Detect below normal or “brown out” voltage conditions; protect against possible motor overheating.
- Identify phase loss conditions by detecting voltage reduction in one or more phase of three-phase motor.
- Monitor over voltage conditions associated with regenerative voltage to help in diagnosing/avoiding motor drive issues.
- Detect voltage conditions which may cause stress in or damage to soft starter components (SCRs).
Voltage Transducer Features
True RMS Output
- Allows for use in situations where power supplied is poor power quality or other electrically harsh/challenging environments.
Standard 4-20 mA Loop-powered Output
- Industry standard output makes use with existing controllers, data loggers and SCADA equipment easy and reliable.
Input/Output Isolation
- Input and output circuitry electrically isolated for improved safety of use.
Compact DIN Rail Mounted Case*
- Space saving 35 mm wide enclosure mounts quickly for an attractive installation.
UL/cUL and CE Approved
- Accepted worldwide.
Voltage Transducer Connections

Voltage Transducer Ordering Information
Sample Model Number: VTR1-420-24L-DIN
True RMS voltage transducer with 120 V voltage range, standard 4-20 mA proportional output; 24 V loop-powered with a DIN rail compatible case.
| (1) | (2) | (3) | (4) | |||||||||||
| VTR | – | 4 | 2 | 0 | – | 2 | 4 | L | – | D | I | N | ||
| (1) Voltage Range | |
| 1 | 120 V |
| 2 | 150 V |
| 3 | 240 V |
| 4 | 480 V |
| 5 | 500 V |
| 6 | 600 V |
| (2) Output Type | |
| 420 | 4-20 mA |
| (3) Supply Voltage | |
| 24 | 24 V loop-powered |
| (4) Mounting | |
| DIN | DIN rail compatible |
Product General Attributes | |
|---|---|
| HTS/Schedule B Number | 9030.39.0100 |
| ECCN Number | 3A922 |
| Country of Origin | United States |




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