Technical specifications Instalation type Fixed instalation Control panel power supply / frequency / fuse ~ 110-230 V/50-60 Hz, max. 0.28 A with F1.6 A/250 V fuse, protection class II Power / current max 23 VA / 0.1 A Protection class II. Back-up battery 12 V; 2.6 Ah max (lead gel) Low backup battery voltage (fault indication) ≤11 V Maximum battery recharge time (80% capacity) 72 h Bus supply voltage / max ripple (red - black) 12.0 ÷ 13.8 VDC / ±100 mV