IK9169 phase monitor, IK9168 phase monitor display Detection of phase failure in three-phase systems Single-phase connection also an option Rest current principle Adjustable phase sequence LED display for each phase 17.5 mm overall width Additional function on IK9169 phase monitor Output 1 changeover contact for control purposes Meets IEC 255, VDE 0435 Part 303 Input Nominal voltage U N : 3 AC 230 / 400 V Voltage range: 0.8 → 1.1 U N Frequency range: 45 → 65 Hz Response value: IK9169: 0.7 U N ±10% IK9168: 0.5 U N ±10% Output (IK9169 only) Contact assignment: 1 changeover Thermal current I th : 4 A General data Rated operating current type: Continuous operation Temperature range: -20 °C → +60 °C Device dimensions (W x H x D): 17.5 x 90 x 59 mm Phase Sequence/Failure Relays Monitoring of 3 phase supplies Orange housing manufactured to DIN 43 880 DIN rail mount