Hanging open new dawn explosion-proof, explosion-proof limit switch, BLX proof switch, BLX proof limit switch. Scope * for 1 and Zone 2 hazardous locations; * For IIA, IIB, IIC class, temperature class T1-T6 explosive atmosphere of; technical parameters * Standard: GB 3836.1-2000, GB 3836.2-2000 , IEC60079; * Ex-mark: ExdIIBT4; * Rated voltage: AC220V/50Hz; * Protection grade: IP54; * corrosion grade: WF1; * cable diameter: Φ6.5 ~ Φ11; * Inlet thread: G1 / 2; Product Features * cast aluminum housing, powder coated; * Built trip switch; * pipe or cable wiring are