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ASL 55 LED Ex Explosion-Proof Sight Glass Light
The ASL 55 LED Ex Sight Glass Light is an ATEX-certified explosion-proof LED luminaire designed for safe illumination of sight glasses, reactors, pipelines, and process vessels in hazardous environments. It delivers high-intensity, glare-free cold light with long service life and low maintenance requirements.
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Technical data
ASL 55 LED Ex Sight Glass Light Overview
The ASL 55 LED Ex Explosion-Proof Sight Glass Light is designed for reliable illumination of industrial sight glass fittings, process vessels, reactors, mixers, and pipeline systems operating in potentially explosive atmospheres.
Engineered with ATEX-certified protection, it is suitable for gas Zone 1 & 2 and dust Zone 21 & 22 applications. The robust aluminum housing combined with high-performance LED technology ensures stable operation, long service life, and consistent light output even in harsh industrial environments.
The luminaire is specifically designed for mounting on circular sight glass fittings (DIN 28120 / DIN 28121) or screw-type fittings (DIN 11851), making it widely used in chemical, pharmaceutical, food processing, biotechnology, and petrochemical industries.
Its cold-light LED technology minimizes heat transfer to the process while providing high-contrast illumination for safe and precise visual inspection.
ASL 55 LED Ex Sight Glass Light — Technical Data
| Specification | Details |
|---|---|
| Product Name | ASL 55 LED Ex Explosion-Proof Sight Glass Light |
| Light Source | High-Power LED |
| Housing Material | stainless steel 1.4404 |
| Lens Material | Borosilicate Glass |
| Explosion Protection | ATEX II 2G Ex db IIC T6 Gb / II 2D Ex tb IIIC T80°C Db |
| Hazardous Area | Gas Zone 1 & 2 / Dust Zone 21 & 22 |
| Protection Class | IP65 / IP67 |
| Operating Voltage | 24V AC/DC or 110–230V AC |
| Power Consumption | 11W / 15W (depending on version) |
| LED Lifetime | Up to 50,000 hours |
| Ambient Temperature | -20°C to +40°C |
| Mounting Type | Hinged bracket / flange adapter |
| Compatibility | DIN 28120 / DIN 28121 / DIN 11851 |
Dimensions and electrical data for Lumistar luminaire ASL55LED-Ex:
• Connecting data: Temperature classification and electrical parameters
| No. | ASL55LED-Ex Variant | Part No. | Voltage Volt | Illuminant | Ambient temperature range -20℃ ≤ Tₐ ≤ +40℃ | |
|---|---|---|---|---|---|---|
| 1 | (24 V) 11 W | 3541.681.00 | 24 ~ | 4 LED | 2G T6 | 2D T80℃ |
| 2 | (120-230 V) 11 W | 3541.682.00 | 120-230 ~ | 4 LED | 2G T6 | 2D T80℃ |
| 3 | (24 V) 15 W | 3541.691.00 | 24 ~ | 7 LED | 2G T6 | 2D T80℃ |
| 4 | (120-230 V) 15 W | 3541.692.00 | 120-230 ~ | 7 LED | 2G T6 | 2D T80℃ |
KEY FEATURES
ATEX Certified Design
Suitable for hazardous gas (Zone 1/2) and dust (Zone 21/22) environments.
High-Efficiency LED Technology
Long-life LEDs with stable brightness and low energy consumption.
High Protection Rating
IP65/IP67 protection against dust, water, and harsh industrial conditions.
Long Service Life
LED lifespan up to 50,000 hours reduces maintenance frequency.
Industrial Aluminum Housing
Robust construction for vibration and corrosion resistance.
Compatible Mounting System
Designed for DIN 28120 / DIN 28121 sight glass fittings.
TYPICAL APPLICATIONS
- Pressure Vessels
- Chemical Reactors
- Boilers & Steam Systems
- Pipeline Sight Glass Assemblies
- Pharmaceutical Equipment
- Food & Beverage Processing
- Industrial Observation Ports
FAQ
A:It is used to illuminate sight glasses, reactors, and process vessels in hazardous industrial environments, enabling safe and clear visual inspection.
A:Yes. It is ATEX certified for gas Zone 1 & 2 and dust Zone 21 & 22 applications.
A:LED cold light produces minimal heat, making it safe for temperature-sensitive processes such as chemical reactions, fermentation, and sterile production.
A: It is compatible with DIN 28120, DIN 28121, and DIN 11851 sight glass fittings and similar industrial connections.
A:Yes. Voltage, mounting accessories, cable length, beam angle, and housing options can be customized according to application requirements.
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