Features: - brand new and high quality - Made of high quality materials, durable - Dual Display 40A 63A 230V Din Rail Adjustable digital Over Under Voltage Relay Surge Protector Limit Over Current Protection - Overvoltage protection - Undervoltage protection - Overcurrent protection - Automatic recovery - Voltage display (voltage measurement) - Current display (current measurement) Specification: - Voltage calibration: Voltage +-10% adjustable. A13 - Current calibration: current ±9/5% adjustable A15 - Factory reset: long press the down key for more than 12s - Fault query: press the UP button for more than 12S - Rated current: 40A, 63A (optional) - Frame current: 40A, 63A - Number of poles: 2P - Breaking capacity: 6kA - Release accessories: undervoltage release - Travel characteristics: instantaneous - 3C rated voltage range: above 50V and below 440V - Electrical life: 30,000 times - Rated voltage: AC230V - Protection type: overload protection - Release type: Overload release - Trip mode: overload trip - Wiring method: rail type - Size: 85*36*65mm - Installation size: 85*36*65 - Weight: about 170g - Mechanical life: 100,000 times - Power supply: 230VAC 50/60Hz - Maximum load power: 1~40A adjustable (default: 20A) - 1~63A adjustable (default: 40A) - Overvoltage protection value range: 230V~300~OFF (default: 270V) - Overvoltage recovery voltage range: 225V--295V (default: 250V) - Overvoltage protection time: 0.1s~30s (default value: 1s) - Overvoltage recovery delay time: 1s~500s (default: 30s) - Undervoltage protection value range: 140V--210V --OFF (default: 170V) - Undervoltage recovery voltage range: 145V--215V (default: 190V) - Undervoltage protection time: 0.1s~30s (default: 1s) - Undervoltage recovery delay time: 1s~500s (default: 30s) - Overcurrent adjustment range: 1-40A (default: 20A) 1-63A (default: 40A) - Overcurrent range: 0.1~30 seconds (default: 1s) - Overcurrent recovery delay time: 1s~500s (default: 30s) - Boot delay time: 1s~500s (default: 10s) - Power consumption: