ИЦ404

ИЦ404 three-phase voltmeter

Designed to measure the RMS values of phase (phase-to-neutral) and line (phase-to-phase) voltages in a three-phase system with a solidly earthed neutral, with a built-in selector switch between phases.

Distinctive features:

• Built-in input selector between phases for star and delta connections.
• Replaces three analogue voltmeters.
• Voltage shown on a three-digit display.
• Powered from one of the phases (100-265) V.
• Front-panel mounting with rear terminal connections.
• The RMS voltage is determined by measuring the voltage many times within each cycle and processing the results mathematically in real time

Replacing 132×132 and 172×172 analogue panel instruments with digital panel instruments made by NPP VEL