Expert Power Control 87-3300-18 for increased operational reliability and energy efficiency in AV/IT racks. Integrated overvoltage protection type 3 (L-N, L/N-PE) Switching with high-inrush relay: max. 4 sec: 30 A /max. 20 ms: 80 A Measurement of key electrical parameters: current (A), voltage (V), phase angle, power factor, frequency (Hz), active power (W), apparent power (VA) and reactive power (VAr) Encrypted communication via SSL (TLS 1.1, 1.2, 1.3) and SSH