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 ... °CRelative Temp<95%Dimensions (LxWxD)478x88x484mm WeightAbout 11Kg EVAC Class-D Amplifier (EN54-16) VA-P120