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Chalmit Sterling III Zone 2/22 LED Linear Luminaire

ATEX and IECEx certified Ex ec LED Linear.


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The Sterling III Zone 2 LED is a high quality, cost effective linear which realises further improvements over our best-selling Sterling II family. It features a lightweight, single geartray design for ease of installation and maintenance.

The luminaire also features electronic control gear, with optional 3hr battery back up, and is available with or without internal opal diffusers to suit any Industrial application.

  • Highly Energy Efficient
  • Lightweight and slimline construction
  • 155,000 maintenance free hours at 45°C (L70)
Std. Cat No. Delivered Output Power Consumption Tclass T °C (Dust) Ambient °C Weight
ST3N/03L/LE 3592 lm 23W T4 76 -20 to +55 2.8kg
ST3N/06L/LE 6241 lm 42W T4 76 -20 to +50 4.4kg
ST3N/09L/LE 8798 lm 63W T4 76 -20 to +45 5.0kg
ST3N/03L/LE/EM 3592 lm 26W T4 76 -20 to +45 3.8kg
ST3N/06L/LE/EM 6241 lm 49W T4 76 -20 to +45 5.2kg
ST3N/09L/LE/EM 8798 lm 65W T4 76 -20 to +45 5.8kg
Options – Suffix to Catalogue No.
/OD Internal Opal diffusers (approx. 20% reduction in output) /NST Non self test inverter (EM only)
/DM DALI Dimmable driver /5K 5000K (Cool White) LED Strips
/5FT 5ft body (09L model only) /3K 3000K (Warm White) LED Strips
Accessories Accessories should be ordered separately Order Code
Pole mounting bracket assembly (38-42mm diameter poles) SPOL4-100004
Pole mounting bracket assembly (48-52mm diameter poles) SPOL4-100005
Pole mounting bracket assembly (58-62mm diameter poles) SPOL4-100006
Hook type ceiling bracket assembly S3004-100003
Ceiling bracket assembly S3004-100001
Flush wall mounting bracket assembly (30° luminaire rotation) S3004-100004
03L wall mounting outreach bracket (use with SPOL4-100004) NPRO4-0008
06L/09L wall mounting outreach bracket (use with SPOL4-100004) NPRO4-0012
Internal Opal Diffuser Strips (03L) S3004-100005
Internal Opal Diffuser Strips (06L & 09L) S3004-100006

ATEX Classification Group II Category 3 GD
  • Distilleries
  • Onshore Oil & Gas
  • Zone 2/22
Battery Type 6V Ni-Cad
Color Temperature 4000 K
Fixture Type Linear
Ingress Protection IP65 to EN 60529
Lamp Type LED
Material – Body GRP with prismatic polycarbonate diffuser and stainless steel retaining clips
Mounting Type
  • Ceiling
  • Pole
  • Suspended
  • Wall

Certifications and Compliance
Certified Listed
  • ATEX
  • IECEx
Hazardous Rating(s)
  • Ex ec IIC T4 Gc
  • Ex tc IIIC T76°C Dc

Chalmit Sterling III Zone 2 Linear (ST3N - Standard & Emergency) Datasheet

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