Attributes . electrostatic dischargelevel 4 IEC 61000-4-2 || susceptibility to electromagnetic fieldslevel 3 IEC 61000-4-3 || electrical fast transient/burst immunity testlevel 4 IEC 61000-4-4 || 1.2/50 ?s shock waves immunity testlevel 4 IEC 61000-4-5 || conducted RF disturbanceslevel 3 IEC 61000-4-6 || magnetic field at power frequency 0.5 mT IEC 61000-4-8 || conducted and radiated emissionsclass B EN 55022 . Names