Our Products
ESL 55 LED Explosion-Proof Sight Glass Light
The ESL 55 LED Explosion-Proof Sight Glass Light is a high-performance ATEX-certified luminaire designed for illuminating sight glasses, reactors, tanks, and pipelines in hazardous industrial environments. Featuring a polished stainless steel housing, high-power LED technology, and glare-free cold light, it provides reliable process visibility with minimal maintenance.
Non binding • Usually a response within 24 hours
Technical data
ESL 55 LED Ex Sight Glass Light Overview
The ESL 55 LED Explosion-Proof Sight Glass Light is engineered to provide safe, high-intensity illumination for industrial process equipment operating in hazardous environments. Designed for installation on circular sight glass fittings, flow indicators, reactors, tanks, and pressure vessels, it delivers bright, uniform lighting while maintaining the highest safety standards.
Constructed with a polished stainless steel housing and borosilicate glass lens, the ESL 55 utilizes advanced high-power LED technology to produce glare-free cold light with virtually no radiant heat. This minimizes thermal impact on sensitive chemical, pharmaceutical, and biological processes while ensuring excellent process visibility.
Certified for use in Gas Zone 1 & 2 and Dust Zone 21 & 22, the ESL 55 is ideal for chemical plants, pharmaceutical facilities, food processing, biotechnology, and petrochemical industries. Its vibration-resistant construction, IP65/IP67 protection, and LED lifetime of up to 50,000 hours provide dependable long-term operation with reduced maintenance requirements.
ESL 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 ESL55LED-Ex:
• Connecting data: Temperature classification and electrical parameters
| No. | ESL55LED-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.
Need Custom ESL 55 LED Explosion-Proof Sight Glass Light Solutuions?
Send us your drawings or technical requirements for fast quotation and engineering support.