EN54-16 and EN54-24 Certificated Voice Evacuation System Class D amplifier for voice alarm system, 120W to 500W per channel. ... includes power on, overheat, short circuit and overload.Features* Class-D power amplifier for voice evacuation system* 120W, 240W, 350W & 500W ... PowerPower220V AC, ±10%, 50/60HzMax Working Current0.7A, 1.4A, 2A, 3A, 1.4A, 2.8A, 4A, 6A, 2.8A, 5 ...