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Thiim PNDA 3 Phase Under Voltage Control Relay With Phase Sequence Detection

Features

  • Accurate under voltage detection of each phase against neutral
  • Phase sequence detection inhibit the relay with wrong sequence
  • Adjustable Sensitivity from -5 to -25% of nominal voltage
  • Adjustable differential from -5 to -80% of under voltage offset from nominal. Voltage range 0,25 to 20% of under voltage
  • Time delay - on and off - individually adjustable
  • One unit for three mains voltages
  • 6 LEDs indicate the state of input, phase sequence, timing function and relay

Details

Description: The 3 phase 4 wire voltage relays are designed for applications where the three phases need to be individually monitored for under voltage against neutral and correct phase sequence. The PNDA and PNDI contain a standard timing function. In addition the PNDI offers a true time delay on drop out even at total power failure. The relay works in "fail safe" mode and need no external power supply. Operation: Under normal phase conditions the relay is energized - contacts 11-14 and 21-24 closed - and the green "input" LED and the yellow "relay" LED are switched on. If one or more phase voltages are below the preset under voltage value, the red "input" LED will be switched on and stay on until all three phase voltages are above the set value plus the preset differential, given by a percentage of the under voltage offset from the nominal value. If the state of the relay is not corresponding to the input signal, the yellow LED indicating delay "ON" or "OFF" will be on until the relay changes state and corresponds to the input. In case of wrong phase sequence the relay will not be energized and the red "inversed phase sequence" LED will be on indicating the fault
Product Name / Options Price (ex VAT)
Thiim PNDA-B110-AA3C 3 Phase Voltage Control Relay, 100, 110 and 115 VAC, Rail Mounting 35mm - 35030 Call for Prices

Thiim PNDA-B230-AA3C 3 Phase Voltage Control Relay, 220, 230 and 240 VAC, Rail Mounting 35mm - 39792 Call for Prices

Thiim PNDA-B400-AA3C 3 Phase Voltage Control Relay, 380, 400 and 415 VAC, Rail Mounting 35mm - 34737 Call for Prices

Thiim PNDA-B230-AA3C 3 Phase Voltage Control Relay, 220, 230 and 240 VAC, Socket Mounting 35mm - 39786 Call for Prices

Thiim PNDA-B400-AA3C 3 Phase Voltage Control Relay, 380, 400 and 415 VAC, Socket Mounting 35mm - 39322 Call for Prices