Description

DEIF VTR‑5‑NB – True RMS Voltage Transducer Module

2. Product Overview

The VTR‑5‑NB is a DIN‑rail‑mounted true‑RMS voltage transducer manufactured by DEIF, built to convert AC line voltage into isolated 4‑20 mA analog output signals for PLC and SCADA acquisition systems. This device resolves measurement challenges for fluctuating AC power signals within generator control panels and electrical switchgear, delivering noise‑resistant galvanically isolated readings to avoid ground‑loop interference. VTR‑5‑NB supports standard industrial power‑supply ranges and provides consistent measurement accuracy under variable cabinet ambient conditions. It simplifies power‑system monitoring without requiring extra analog front‑end hardware on host controllers, supporting stable long‑term operation in land and marine power‑control cabinets.

3. Technical Specifications

• Brand: DEIF
• Model: VTR‑5‑NB
• Warranty: One Year
• Condition: 100% New & Original
• Input/Output: AC voltage input 0‑500 VAC (45‑65 Hz True RMS); Isolated 4‑20 mA DC analog output
• Accuracy: ±0.5 % of full scale (typical)
• Isolation: 2 kV RMS galvanic isolation among input, output and power supply
• Power Supply: 18‑36 V DC nominal 24 V DC
• Operating Temp: -20 °C to +60 °C continuous operation
• Communication: Analog output only, no digital bus interface
• Dimensions/Weight: 100 × 78 × 59 mm; approx. 0.2 kg, DIN‑rail TS‑35 mounting
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4. Application Scenarios

• Generator Power Control Panels: The VTR‑5‑NB converts generator AC voltage measurements into standard analog signals, feeding real‑time voltage data to PLC and SCADA systems for genset status monitoring and protection logic evaluation.
• Marine Electrical Switchboards: Deployed inside vessel control cabinets, this transducer provides isolated RMS voltage readings for shipboard power distribution systems, complying with marine‑grade environmental requirements for power‑quality supervisionDEIF.
• Industrial Motor Control Centers (MCC): Installed within MCC cabinets to monitor bus‑bar AC voltage; its galvanic isolation protects downstream controller I/O cards against electrical noise and ground‑loop disturbances in mixed‑voltage automation cabinets.