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IL 9071.12 3N AC400/230V 0,85UN 4% - 

Voltage Monitoring Relay, IL 9071 Series, DPDT, 3 A, DIN Rail, 230 VAC, Screw

IL 9071.12 3N AC400/230V 0,85UN 4% - Voltage Monitoring Relay, IL 9071 Series, DPDT, 3 A, DIN Rail, 230 VAC, Screw

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Manufacturer Part No:
IL 9071.12 3N AC400/230V 0,85UN 4%
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Product Range
IL 9071 Series
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Product Information

IL 9071 Series
DIN Rail
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Product Overview

The IL 9071 series Undervoltage Relay with an identification of undervoltage, phase failure, asymmetry also with reverse voltage and missing neutral in the system, broken neutral on IL/SL 9071 and a neutral exchanged against phase. The monitoring of 3-phase voltage systems to identify undervoltage, asymmetry or phase failure and switching-on of safety lighting in accordance with DIN VDE 0108. In 3-phase systems with neutral often also single phase load are connected between phase and neutral. If the neutral is missing in a system like this un-symmetric voltages occur that could damage single phase consumers if the voltage rises too high. Also consumers can stop to work if the phase-neutral voltage gets too low. The IL 9071 detects this problem and can switch of the system immediately. It has depth 61mm with terminals at the bottom for installations systems and industrial distribution systems according to DIN 43 880.
  • Neutral monitoring in 3-phase systems
  • Single-phase connection possible
  • Fixed setting value (variable as an option)
  • Closed circuit operation principle
  • LED indicator
  • Independent of phase sequence
  • 2 Changeover contacts
  • According to DIN VDE 0100-710 (for rooms used for medical purposes) as an option


Industrial, Test & Measurement

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