Explosion-Proof LED Light Fittings CZ6474/235 & CZ6474/245

CZ6474/235 & CZ6474/245 Explosion-Proof LED Light Fittings

The CZ6474/235 and CZ6474/245 are explosion-proof LED light fittings designed for hazardous industrial environments where reliable illumination, corrosion resistance and certified explosion protection are required. The range is suitable for petrochemical, chemical and marine applications and is certified for use in gas Zones 1 and 2 and dust Zones 21 and 22.

The enclosure is manufactured from die-cast aluminium alloy with an epoxy resin powder coating for corrosion resistance. The transparent light-transmitting section is made from toughened borosilicate glass, while exposed fasteners are manufactured from stainless steel. The lighting fixture incorporates a dedicated increased-safety wiring cavity and a separate electrical and lighting cavity, separated by an encapsulated bushing.

Certified flameproof cable-entry devices are used for cable entry. Internally, PHOENIX cage-type terminals are used for convenient wiring. A dedicated heat-insulation design combined with an external high-density heat sink supports effective thermal management and long LED service life.

The range is available in multiple mounting configurations including bracket mounting, 90° platform mounting, 25° platform mounting and wall mounting. Optional mounting accessories, stainless-steel protective mesh and lamp shades are also available.

Key Features

• ATEX and IECEx certified explosion-proof LED lighting
• Suitable for Zones 1, 2, 21 and 22
• Available power: 30W, 45W, 60W, 75W and 90W
• Maximum listed luminous flux: 10,192 lm
• IP66 protection rating
• Die-cast aluminium alloy housing
• Epoxy resin powder-coated surface
• Toughened borosilicate glass
• Stainless-steel exposed fasteners
• LED light source
• Power factor >0.98
• Standard colour temperature: 5000K
• Optional colour temperatures: 3000K, 4000K and 6500K
• LED service life up to 50,000 hours
• Good vibration resistance
• Multiple mounting configurations
• Optional stainless-steel protective mesh

Hazardous Area Certification

• ATEX: II 2 GD
• IECEx certified
• Gas protection: Ex db eb IIC T6/T5 Gb
• Hydrogen version: Ex db eb IIB+H2 Gb
• Dust protection: Ex tb IIIC T80°C/T95°C Db
• Degree of protection: IP66

Hazardous Zones

• Gas: Zone 1 and Zone 2
• Dust: Zone 21 and Zone 22

Electrical Data

• Catalogue rated voltage: 100-240 VAC, 50/60Hz
• DC voltage: 127-250 VDC
• ATEX / IECEx certificate rating: 100-250 VAC, 50/60Hz / 127-250 VDC
• Power factor: >0.98
• Light source: LED

Ambient Temperature

• IIC versions: -40°C ≤ Ta ≤ +40°C / +55°C
• IIB+H2 versions: -60°C ≤ Ta ≤ +40°C / +55°C
• -60°C versions require customized low-temperature electrical equipment

Temperature Class

• At Ta ≤ +40°C: T6 / T80°C
• At Ta ≤ +55°C: T5 / T95°C

Mounting Options

• B – Bracket type lamp
• C – Platform type lamp, 90°
• D – Platform type lamp, 25°
• E – Wall type lamp

Colour Temperature Options

• 3 – 3000K
• 4 – 4000K
• 5 – 5000K
• 6 – 6500K

Terminal and Cable Entry

• L1 / N cage-type terminal: 2-2.5mm²
• PE terminal: 2 x 10mm²
• Bracket version: M25 x 1.5 cable entry, cable diameter typically Ø9-17mm
• Platform versions: M25 x 1.5 cable entry, cable diameter typically Ø9-17mm
• Wall version: multiple M25 x 1.5 cable-entry configurations available

Construction

• Housing: Die-cast aluminium alloy
• Surface: Epoxy resin powder coating
• Transparent shield: Toughened borosilicate glass
• Exposed fasteners: Stainless steel
• Internal terminals: PHOENIX cage-type terminals