Unidades de aire
acondicionado
ISA 12.12.01 and NFPA 70-10 (National Electric Code):
Class I, Div. 2, Group A and Group B
Class I, Zone 2, Group IIB plus hydrogen, or "+H2"
240/220V, 50 Hz: SH20
230/208V, 60 Hz: SH15 | SH20
230/208V, 60 Hz; 240/220V, 50Hz: SH24
Article 501
Class I, Div. 2, Group B
Class I, Div. 2, Group C
Class I, Div. 2, Group D
Article 505
Class I, Zone 2, Group IIC
Class I, Zone 2, Group IIB
Class I, Zone 2, Group IIA