Lumistar luminaire USL 05LED-Ex丨Explosion-Proof LED Spotlight
Explosion-proof Lumistar ESL05LED-Ex LED spotlight for sight glasses. ATEX/IECEx certified, multiple voltages, corrosion-resistant housing, narrow & wide optics. Datasheet & certificates available.
Description
The Lumistar USL05LED-Ex is a compact, explosion-proof LED spotlight engineered for hazardous-area process observation and sight-glass lighting. Built with corrosion-resistant housing, impact-resistant windows, and certified Ex protection, it delivers glare-free, reliable illumination for petrochemical, pharmaceutical, food, and power plants.
Key benefits
- Certified explosion protection — Ex db / Ex tb ratings for Zone/Division hazardous areas (model-dependent).
- Robust construction — corrosion-resistant aluminum or stainless steel housing with impact-resistant glass or polycarbonate window.
- Engineered optics — selectable beam angles and lumen packages for close-range spot lighting or broader process illumination.
- Flexible installation — hinged mounting bracket, flange adapter options for DN-range sight glasses; easy removal for maintenance.
- Service-grade electronics — stable LED driver, long lifetime, low maintenance.
- Corrosion & temperature resilience — stainless steel or coated housing options and temperature ratings suitable for extreme climates.
Typical applications
Hazardous area task and area lighting in oil & gas platforms, tank farms, pump stations, chemical plants, paint booths, marine decks, offshore modules, loading bays and heavy industrial facilities where explosion risk or harsh environments exist.
Typical technical specifications
| For mounting on sight glass fittings | Universally applicable sightglass luminaire in Ex version, which is excellently suited for the combination of sight glass and light glass (1 flange version) as well as for their separate arrangement (2 flange version). |
|---|---|
| Applications | To illuminate the interior of boilers, tanks, silos, agitators and other normally closed containers and reactors as well as flow-through sight glasses in areas at risk of explosion; gas: Zone 1 and 2, dust: Zone 21 and 22. Suitable for food processing plants. |
| Caution | Do not look into the light – danger of impaired eyesight! |
| Protection class | IP65 and IP67 according to DIN EN 60529 |
| Voltage type | AC / DC |
| Operating voltage | 24 V AC/DC – 7.5 W 110–230 V AC – 7.5 W |
| Colour temperature | 6500 K |
| Connecting cable | Works-fitted encapsulated pressure-tight power lead with screwed cable gland; optionally 2 m (standard), 5 m, 10 m, 20 m or externally tested and approved cable entry gland M20 × 1.5. |
| Luminous flux | 475 lm |
| Beam angle | 40° |
| 5.5 W (alternative spec) | Colour temperature: 4000 K Luminous flux: 400 lm Beam angle: 12° / 25° / 38° |
| Item | USL 05LED-Ex | Variant with 2m connection cable part no. |
Variant with cable gland7-11 mm part no. |
Ambient temperature range | |||
| -20℃≤T₂s+50°℃ | -20℃≤T₂ ≤+60℃ | ||||||
| 1 | 230VAC-4W | 3,540,059.00 | 一 | 一 | – | 2G T6 | 2D T80℃ |
| 2 | 24VAC/DC-7.5W | 3,540,042.00 | 3,541,935.00 | 2G T6 | 2D T80℃ | – | – |
| 3 | 110-230VAC-7.5W | 3,540,043.00 | 3,541,936.00 | 2G T6 | 2D T80℃ | – | – |







