3S-B1 series electric bells
● Standard: IEC 61558-2-8
● Voltage range (V):
● AC: 12, 24, 36, 48, 110, 127, 220, 380
● DC: 12, 24, 36, 48, 110, 220
● Rated frequency (Hz): 50/60
● Permissible voltage variation: ± 10 %
● Rated insulation resistance: ≥ 20 MΩ