2-pole surge protector SP2 series

4-pole3-polesingle-pole

Application SP2 series SPD for power supply is a single terminal voltage limiting SPD for indoor installation, suitable for TT, IT, TN-S, TN-C, TN-C-S power supply system with AC 50/60Hz, 230/400V and below, suitable for protection of low voltage power grid system and various kind of electrical equipment and control system, to limit the instant over voltage that is higher than the equipment’s withstand impulse voltage, to discharge the surge energy, and by make voltage limiting to all kind of surge over voltage, thus to protect the system circuit and equipment. Standard: GB18802.1, GB18802.12, IEC61643-1, IEC61643-21, UL1449 ed.2 Usage And Working Conditions • Failure disconnect device SP2 module equipped with failure disconnect device, when protector failure due to overheating or punctured, the failure disconnect device will automatically disconnect it from the power grid, and meanwhile make indication signal. When protector is normal the label shows green color, if failure it shows red color. • Remote signaling contact SP2 can be made with remote signaling contact, if one module or more module failure, contact will close to send failure signal. • Normal operating conditions of protector: a. Altitude not exceed 2000m b. Ambient air température: normal range between -5°C ~+40cC , extend range between -40°C ~+80cC ; c. Atmosphère relative humidity: indoor température 30%~90%; d. At the place without obviously vibration or shock impact. e. No explosion danger medium, no corrosion gas or dust (including conductive dust) that can make corrosion to the métal and damage the insulation. Sélection Principle