OVR Type 1+2 surge protection devices S-OVR T1+2 3N 25-255 TS Width 142.4 mm Dimensions Description Type 1 and Type 1+2 surge protective devices are designed to discharge high current surges without any destruction of the installation. These surge protective devices are characterized by their capacity to withstand impulse current with 10/350 µs wave form which simulate natural lightning current. Type 1+2 ABB surge protective devices have a high impulse current withstand capacity with ensuring a low protection level (Up). Types Standards Type of SPD according to EN 61643-11 Protected line System network Nominal system voltage Un Max. cont. operating voltage Uc Maximum impulse current Iimp (10/350) Max. Imp current Tot Iimp (10/350) Nominal discharge current (8/20 µs) In Max. discharge current (8/20 µs) Imax Follow current interrupting rating Ifi Voltage protection level Up at In Voltage protection level Up at 3 kA Short Circuit Withstand Icc Temporary overvoltage (TOV) UT (L-N: 5 s./N-PE: 200 ms) Response time Short-circuit withstand capability Isccr Backup protection maximum rating fuse (gG - gL) &circuit breaker State indicator Stocking and operating temperature OVR T1+2 3N 25-255 TS IEC 61643-11 / EN 61643-11 T1-T2 / l - ll 3+1 TNC – TNS – TT (L-N) 230 / 400 V 255 V 25 kA 100 kA 25 kA 60 kA 15 kA 1.5 kV 1.0 kV 50 kA 334 V / < 100 ns ≤ 50 kA ≤ 125 A Yes -40...+80 °C
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