Catégory D1 /C1 /C2 /C3 surge protector RayDat SUI-4

gas discharge tubemodularDIN rail

IEC/EN Category: D1/C1/C2/C3 Mode of Protection: Longitudinal, Transverse Voltages: 5, 12, 15, 24, 30, 48, 60, 110 V DC Frequency Range: 30 MHz Surge Discharge Ratings: In: 20 kA, Imax: 30 kA, Iimp: 5 kA Series Load Current: 1 A Enclosure: DIN 43880 2/3 TE, DIN Rail Mount Terminals: Stranded to 4 mm2 Housing: Modular Design Compliance: IEC/EN 61643-21 The RayDat SUI-4 Series provides a greater surge withstand level or impulse current 10 kA, 5 kA per line. It is intended for operation in electrical environments where higher exposure to the effects of direct or partially direct lightning currents may be experienced. These include wind turbines and PV installations where lightning exposures are more severe, but where protection of sensitive electronics, such as environmental sensors, is just as crucial. The initial protection stage comprises a three-pole gas discharge tube and is designed to divert the primary surge energy. The subsequent fine protection stage is implemented using fast bidirectional silicon avalanche diodes. Special design techniques have been employed in the design of the fine protection stage to avoid capacitive line loading and thereby ensure a low insertion loss and wide operating frequency range. Series line impedance is used to ensure energy coordination between the coarse and fine protection stages irrespective of the magnitude of the incident surge. When power frequency contact occurs between power and communication lines, the hazard of electric shock and fire is increased. To prevent such risk, a thermo-clip is included in the primary protection stage of this device to divert the power frequency current to ground.