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Discontinued – Chalmit Sterling II (ST2N – Emergency)

Emergency fluorescent linear with GRP body for Zone 2 & 22


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The sterling ii is designed as a single product for both Gas & Dust atmospheres. It is certified with Ex n protection under the ATEX 94-9-EC directive for Categories 3 G and 3 D and has IP65 sealing. The range is also IECEx compliant. The GRP body and polycarbonate diffuser are secured with multiple stainless steel clips to ensure good corrosion resistance and allow rapid access for installation and maintenance. The Sterling suitable for T8 tubular fluorescent lamps in 18/36/58W sizes.

  • Polycarbonate diffuser.
  • Through wiring as standard.
  • High frequency control gear gives 50/60Hz operation, high power factor correction and regulation of lamp output.
  • Long life nickel cadmium batteries.
  • Switchable mains supply for local operation.
  • LED charge indicator.
  • End of life (EOL) protected.

The Sterling II Emergency features the same construction and EOL protected ballast as the standard product. In addition it also provides three hours of battery backup for emergency operation in the case of a power outage.

ATEX Classification Group II Category 3 GD
Application Zone 2 and 22
Battery Type 6V Ni-Cad Battery (4 Ah)
Lamp Type T8 Tubular Fluorescent
Light Distribution 3 hours.
Material GRP with polycarbonate diffuser and A4 stainless steel retaining clips.
Operating Temperature Range Celsius -20°C to +40°C
Style Linear
Type Linear
Certifications and Compliance
Certified Listed
  • ATEX
  • IEC
Compliance IP65
Hazardous Rating(s) Zone 2 & 22
Industry Standard(s)
  • EN 60079-10-1
  • EN 60079-10-2
  • EN 60079-14

Chalmit Sterling II (ST2N - Emergency) Datasheet

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