Voltage Compatibility: 120V AC Output Amperage Capacity: 15 Output Watt Capacity: 1800 Watts Maximum Spike Amperage: 204,000 Amps (3 Lines Total) EMI/RFI Noise Filter: Frequency: 150KHz - 100MHz; Attenuation: Up to 58dB Clamping Voltage: L-N 330V, L-G 400V, N-G 400V Protection Modes: L-N, L-G and N-G Certifications: UL, ROHS