Features Free regulation: provides safe protection for electrical appliances, manually adjusts over-voltage, under-voltage and over-current protection values Damage prevention: can prevent frequent switching on and off of unstable voltage from causing additional damage to electrical appliances, so as to achieve secondary protection Multiple Functions The current protector has the functions of reset mode selection, fault query, and factory reset Safe material: using PC fireproof material, owns over voltage protection, low voltage protection and voltage display (voltage measurement), safer and more reliable to use Clear Display: surge protector comes with dual display, clarify data at a glance, support DIN rail installation Specification: Item Type: Surge Protector Material: flame retardant PC Current: 63A Surge protection (grape): 240V to 300V Undervoltage protection (uve): 140V to 210V Shutdown delay time: 2s (can be set from 1 to 300s) Auto-reset protection delay: 30s (1-300s) Rated frequency: 50/60Hz Error: 2% Voltage measurement accuracy: 1% Rated insulation voltage: 400V Output Contact: 1NO Electrical life: 100000 Times Mechanical life: 1 million times Protection level: IP20. Height: 2000 meters or less Operating temperature: -50℃ -55℃ Humidity: ≤50% at 40°C (non-condensing) Humidity Temperature: -30°C to 70°C Package List: 1 x Surge Protector Package List 1 x Over Under Voltage Protector