Catégory D1 /C1 /C2 /C3 surge protector RayDat SRH-2

for telecom networksfor data and telecommunication linesgas discharge tube

IEC/EN Category: D1/C1/C2/C3 Mode of Protection: Longitudinal, Transverse Surge Discharge Ratings: In: 10 kA, Imax: 20 kA, Iimp: 2.5 kA Enclosure: DIN 43880 2/3 TE, DIN Rail Mount Terminals: Stranded to 4 mm2 Housing: Modular Design Compliance: IEC/EN 61643-21; UL 497B 4th Edition The RayDat SRH-2 Series provides the same level of protection and technical performance as the SLH-2 Series, but also provides the feature of an additional set of voltage-free contacts which can be used for remote signalization and monitoring of the device’s status. If the unit fails, the contacts change state. These barriers provide both coarse and fine protection stages and offer longitudinal and transverse protection. 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 co-ordination 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 thermoclip is included in the primary protection stage of this device to divert the power frequency current to ground. The plug-in module/base design facilitates the replacement of a failed module without the need to remove system wiring.