ABB OVR T1-T2 12.5-275s C QS Surge Protective Device

Description

Technical Specifications  Technical Specifications Combined surge arrester for power supply systems Voltage protection level – kV Nominal voltage AC – V Lightning impulse current (10/350) – kA Max. conductor cross section solid (solid, stranded) – mm² Max. continuous voltage DC – V Voltage protection level L-N 1.4 kV Max. conductor cross section flexible (fine-strand) – mm² Voltage protection level L-PE 1.4 kV Voltage protection level N-PE – kV Max. voltage (Uc) – V Nominal voltage DC – V Voltage protection level (DC+ – DC-) – kV Max. PV-voltage – V Specific energy (W/R) – kJ/Ohm Voltage protection level (DC+/DC- – PE) – kV Follow current extinguishing capability Ifi – kA Number of poles 1 Max. overcurrent protection device, parallel connection (fuse) – A Max. overcurrent protection device, series connection (fuse) – A Remote signalling No System configuration IT No System configuration DC No System configuration TN Yes System configuration TN-C-S No System configuration TN-C Yes System configuration other No Integrated backup fuse No Energy-coordinated protection effect with regard to the terminal equipment No Voltage switching spark gap technology No Overcurrent protected voltage tapping No System configuration TN-S Yes System configuration TT Yes