Model Meaning

Implementation Standard
GB/T3836.1、GB/T3836.2、GB/T3836.3、GB/T3836.9、GB/T3836.31、IEC60079-0、IEC60079-1、IEC60079-7、IEC 60079-18、IEC 60079-31
Feature Showcase
![]() | Premium brand chips, rationally arranged, unidirectional light emission, uniform and soft illumination, luminous efficacy ≥120lm/W, high color rendering index Ra>70, extended service life, eco-friendly, color temperature 3000K~5700K. | ![]() | Adjustment mechanism, allowing the irradiation angle to be adjusted from 0 to 270 degrees. |
![]() | The heat dissipation structure features fin design to increase the heat dissipation surface area. Air convection channels are incorporated to utilize airflow, effectively dissipating heat from the light source cavity and ensuring long-term reliable operation of the luminaire. | ![]() | Innovative integrated design combining optical components and anti-glare elements, featuring multi-point light distribution for uniform illumination without glare; Multiple adjustable angles available, suitable for installation at varying heights. |
Technical Parameter

| Model and Specifications | Explosion-Proof Marking | Light Source | Luminaire Type | Power (W) | Luminous Flux (lm) | Color Temperature (K) |
|---|---|---|---|---|---|---|
| BED57 | Ex db eb mb IIC T6 Gb, Ex tb IIIC T80°C Db | LED | I | 30, 40, 50, 60 | 3600~7200 | 3000~5700 |
| II | 80, 100, 120 | 8400~14400 | ||||
| III | 120, 150, 160, 180 | 14400~19200 | ||||
| IV | 200, 240, 300 | 21600~28800 | ||||
| V | 400, 480, 600 | 48000~72000 | ||||
| VI | 600, 800 | 72000~96000 |
| Rated Voltage/Frequency | Inlet Thread | Cable Outer Diameter | Protection Rating | Corrosion Resistance Rating |
|---|---|---|---|---|
| AC 220V/50Hz | G3/4" | Φ10~Φ14mm | IP66 | WF1, WF2* |
| Emergency Response Time (s) | Charging Time (h) | Emergency Power (within 100W) | Emergency Power (within 200W) | Emergency Lighting Duration (min) |
|---|---|---|---|---|
| ≤0.3 | 24 | ≤20W | 20W~50W Optional | ≥60min、≥90min Optional |
Light Distribution Curve

Product Features
1. Radiator designed with special die-cast aluminum alloy, featuring high-pressure electrostatic powder coating;
2. Exposed stainless steel fasteners with high corrosion resistance;
3. Separate structures for light source and power supply compartments;
4. Professionally designed optical system with high light utilization, optimized distribution, uniform illumination, and glare-free performance;
5. Maze-type junction box with silicone rubber gasket for secure adhesion and high protection rating;
6. High-strength tempered glass with superior impact resistance, thermal shock tolerance, and high light transmittance;
7. Constant-current power supply with wide voltage input and constant-current output, featuring protection against shunt current, surge, overcurrent, open circuit, short circuit, high temperature, and electromagnetic interference;
8. Power factor cosφ ≥ 0.95;
9. Can be equipped with a modular emergency device based on usage requirements, automatically switching to emergency lighting mode during power supply failure;
10. Cable wiring.









Installation Dimensions

| Power Range (W) | A (mm) | B (mm) | C (mm) | E (mm) | F (mm) |
|---|---|---|---|---|---|
| 30~60 | 280 | 240 | 105±8 | 170 | 123.5 |
| 80~120 | 380 | 340 | 115±8 | 240 | 134 |
| 120~180 | 457 | 416 | 150±8 | 294 | 152 |
| 200~240 | 522 | 480 | 200±8 | 340 | 153 |
| 300 | 210 | ||||
| 400 | 680 | 153 | |||
| 480 | |||||
| 600 | 210 | ||||
| 600 | 1002 | 961 | 680 | ||
| 800 |
Applicable Scope
1. Suitable for Zone 1 and Zone 2 locations in explosive gas environments;
2. Suitable for Class IIA, IIB, and IIC explosive gas environments;
3. Suitable for Zone 21 and Zone 22 locations in explosive dust environments;
4. Suitable for Class IIIA, IIIB, and IIC explosive dust environments;
5. Suitable for temperature classes T1 to T6;
6. Suitable for energy-saving retrofit projects and locations where maintenance or replacement is difficult;
7. Widely used for lighting in petroleum extraction, refining, chemical processing, military manufacturing, textile production, food processing, offshore oil platforms, tankers, and similar facilities.














