Undervoltage Protector DIN Rail Adjustable Overcurrent Protector AC120V‑300V 63A 3 Phase 3 Wire 4 Wire Item Type: 3 Phase Undervoltage Protector Mode: CHLT 615 Material: PC Rated Power Supply Voltage: AC230V Working Voltage Range: AC120V-300V Rated Current: 63A (adjustable overcurrent range 1-63A) Rated Frequency: 50, 60Hz Hysteresis: Overvoltage and Asymmetry: 5V Under Voltage: 5V Asymmetric Delay: 10s Voltage Measurement Accuracy: Less than or equal to 1% (within the entire range) Rated Insulation Voltage: 450V Output Contact: 1NO Electrical Life: 10⁵ times Mechanical Life: 10⁵ times Protection Level: IP20 Pollution Level: 3 Altitude: Less than Approx. 2000m / 6561.7ft Working Temperature: -5 ℃ to 40 ℃ Humidity: Less than or equal to 50% or 40 ℃ (non condensing) Storage Temperature: -25 ℃ to 55 ℃ Installation: 35mm guide rail