CONVENTIONAL type Sprinkler Heads with spherical distribution For automatic fire extinguishers. Special type with pyrotechnic cartridge immediate breaking of glass bulb by electric consent applied to a system of survey. - Degree of protection IP67 - Minimum working current 0,28 A - Normal working current 1A - Control current 0,01 A - Resistance 2,15 ± 0,3 Ohm.