Zone 1
Explosive gas atmosphere likely to occur in normal operation
Zone 2
Explosive gas atmosphere unlikely to occur and, if it does, only for a short period
# General
Product type: Explosion-proof beacon with 105 dB buzzer, Ø130 mm
Brand: Qlight (South Korea)
Light source: rotating 15 W incandescent bulb (SNES) · steady/flashing LED light with built-in selector (SNESL) · revolving LED light with multi-faceted reflector (SNESLR) · xenon strobe lamp (SNES-S, SNES-S-TI)
Rotation: 120–140 rpm (SNES, SNESLR)
Audible signal: siren buzzer, max 105 dB at 1 m
Flash rate: 60–80 flashes/min (SNESL, SNES-S, SNES-S-TI)
Telephone line: 2-wire PSTN · standby 45–55 VDC · ringing 25–120 VAC, 15–55 Hz (SNES-S-TI)
# Electrical
Supply voltage: 12 VDC · 24 VDC · 120 VAC · 230 VAC
# Ex protection
Marking ATEX: II 2G Ex db IIC T6 Gb · II 2G Ex db op is IIC T6 Gb (LED)
Marking IECEx: Ex db IIC T6 Gb · Ex db op is IIC T6 Gb (LED)
Marking NEPSI / CCC / CCS: Ex db IIC T6 Gb, IP66 (SNES, SNESL, SNESLR, SNES-S)
Marking KCs: Ex d IIC T6 IP66 (SNES, SNESL, SNESLR, SNES-S)
Ingress protection: IP66
Ambient temperature: -40 °C to +60 °C
# Mechanical
Dimensions: Ø152 mm (cage) × 238 mm (H) × 183 mm (SNES, SNESL, SNESLR, SNES-S) · Ø152 mm (cage) × 236 mm (H) × 182.5 mm (SNES-S-TI)
Materials: tempered glass (lens), PC (filter), aluminium (housing), AISI 316L (protective cage and bracket)
Cable entry: 1/2" NPT
Housing colour: Munsell 7.5BG 7/2 (aqua green)
Lens colours: red, amber, green, blue
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