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* Shell material: aluminum alloy (surface anodizing treatment)
* Indicator core voltage:
(AC/DC) 3V,6V,12V,24V,36V,48V,110v,220v,380v
(AC) 110V,220V, 380V 50/60Hz
* Indicator core rated working current: ≤20mA * Working life of indicator core: ≥40000 hours
* Thread specification: M30x 1.5 is standard; note when M32x 1.5 is required
* Explosion-proof marks: Ex db II C Gb; Ex th IIIC Db IP66
