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ESL 53 LED Sight Glass Light
The ESL 53 LED Explosion-Proof Sight Glass Light is a compact ATEX-certified LED luminaire designed for illuminating sight glasses, reactors, tanks, and flow indicators in hazardous areas. Its stainless steel housing, high-efficiency LED technology, and cold-light operation provide safe, reliable, and maintenance-friendly process illumination.
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Technical data
ESL 53 LED Sight Glass Light Overview
The ESL 53 LED Sight Glass Light is a compact, high-performance LED luminaire developed for process observation through industrial sight glasses. Designed for non-explosive environments, it delivers bright and uniform illumination while maintaining low power consumption and long operating life.
Manufactured with a corrosion-resistant stainless steel housing, the ESL 53 LED is suitable for installation on circular sight glass fittings, flow indicators, and screw-type sight glass assemblies. Its compact size makes it an excellent choice where installation space is limited while still providing outstanding illumination for visual inspection.
The luminaire is widely used in chemical processing, pharmaceutical manufacturing, food and beverage production, biotechnology, water treatment, and other industrial applications requiring reliable process observation.
ESL 53 LED Sight Glass Light — Technical Data
| Specification | Details |
|---|---|
| Product Name | ESL 53 LED Sight Glass Light |
| Light Source | High-Efficiency LED |
| Housing Material | Stainless Steel 1.4404 (SS316L) |
| Lens Material | Borosilicate Glass |
| Application | Non-Hazardous Areas |
| Protection Rating | IP65 |
| Operating Voltage | 24V AC/DC |
| Rated Power | 7 W |
| Luminous Flux | 500 lm |
| Color Temperature | 5700 K (Daylight White) |
| Beam Angle | 18° or 30° |
| LED Lifetime | Up to 50,000 hours |
| Ambient Temperature | Up to 50°C (70°C intermittent operation) |
| Mounting Options | Hinged Bracket / Flange Adapter |
Dimensions and electrical data for Lumistar luminaire ESL 53LED:
CONNECTION DATA:
| Pos. | Type | Button | Switch | Hinged bracket | Flange adapter | Part no. |
|---|---|---|---|---|---|---|
| 1 | ESL 53LED-KS | with | without | with | without | 3541.901.00 |
| 2 | ESL 53LED-KS | without | without | with | without | 3541.902.00 |
| 3 | ESL 53LED-B | with | without | without | with | 3541.903.00 |
| 4 | ESL 53LED-B | without | without | without | with | 3541.904.00 |
| 5 | ESL 53LED-KS | without | with | with | without | 3541.905.00 |
| 6 | ESL 53LED-B | without | with | without | with | 3541.906.00 |
KEY FEATURES
Compact Design
Ideal for installations with limited mounting space.
High-Efficiency LED Technology
Long-life LEDs with stable brightness and low energy consumption.
IP65 Protection
Dust-tight and resistant to water jets.
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 designed to illuminate the interior of tanks, vessels, reactors, and pipelines through sight glass fittings, providing clear visual inspection in non-hazardous industrial environments.
A:No. The ESL 53 LED is intended for non-explosive (Non-Ex) applications. For hazardous locations, an explosion-proof model such as the ESL 53 LED Ex should be used.
A:The luminaire can be supplied with a hinged bracket or a flange adapter, depending on the type of sight glass fitting and installation requirements.
A: It is compatible with DIN 28120, DIN 28121, and DIN 11851 sight glass fittings and similar industrial connections.
A:The standard operating voltage is 24V AC/DC. Transformers for 230V AC applications are available when required.
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