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400 Watt Round Explosion Proof LED Light | 56000 Lumens | Class 1 Div 2 | 5000K | 100V-277V or 277V-480V
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400 Watt Square Explosion Proof LED Light | 56000 Lumens | Class 1 Div 2 | 5000K | 100V-277V or 277V-480V
Product Description
UL Specs
- UL 844 Hazardous Locations
- Class I, Division 2, Groups A, B, C, D
- Class II, Division 1, Groups E, F, G
- Class II, Division 2, Groups F, G
- Class III
- UL 1598 Suitable for Wet Locations
- UL 1598A Marine Outside Type
- ABS
ATEX Marking
- II 2 G Ex eb mb IIC T5...T6 Gb
- II 2 D Ex tb IIIC T80°C...T100°C Db
IECEx Marking
- Ex eb mb IIC T5...T6 Gb
- Ex tb IIIC T80°C...T100°C Db
Key Features
- Watts: 400
- Lumens: 56000
- Lumens Per Watt: 140
- Replaces: 1000 Watt Metal Halide
- Voltage: 100V-277V or 277V-480V
- Color Temperature: 5000K
- CRI: 70+
- Dimming: 1-10V
- Beam Angles (Std): 120°
- Beam Angles (Opt): 40° or 60° or 90°
- Optics: Tempered Glass Lens
- Lifespan: 50,000 (L70) hours
- Mounting: Yoke or 3/4 in NPT Pendant
- Fixture Color: Gray
- Frequency (Hz): 50-60Hz
- Power Factor: >.95
- THD: < 10%
Durable Construction
- Housing: Copper Free Aluminum
- IP Rating: IP66
- IK Rating: IK10
- Surge Protection: 10kV
- Operating Temperature: -40°F to 122°F
- Certifications: ETL | Rebate Eligible
- Warranty: 5 years
Measurements
- Dimensions (in): 16.6 X 11.8 X 8.3
- Weight (lbs): 36 lbs
Product SKU Variations
- SKU: MLLG-E-LED-EXPLA-400-50-C1D2
- Voltage: 100V-277V
- SKU: MLLG-E-LED-EXPLA-400-50-HV-C1D2
- Voltage: 277V-480V
Download IES Files
- 1835-MLLG-E-LED-EXPLA-400-50-C1D2-30D.IES
- 1835-MLLG-E-LED-EXPLA-400-50-C1D2-60D.IES
- 1835-MLLG-E-LED-EXPLA-400-50-C1D2.IES
Web ID: 1835
Product Overview
We supply the 400 Watt Square Explosion Proof LED Light for hazardous and classified environments requiring high-output, robust illumination. This fixture delivers 56,000 lumens at 5000K, designed for use in areas with flammable gases, vapors, dusts, or fibers. The housing is copper-free aluminum with a tempered glass lens, rated for impact and ingress protection. It is available with yoke or 3/4 in NPT pendant mounting options and supports both 100-277V and 277-480V input ranges.
This model is certified for Class I Division 2, Class II Division 1 and 2, and Class III locations. It is also ATEX and IECEx marked, IP66, and IK10 rated. The fixture is suitable for wet locations and marine outside type environments. Typical installations include large-scale hazardous locations and industrial sites where explosion proof lighting is required.
Where This Product Fits Best
This fixture is designed for large hazardous locations where explosive gases, vapors, or combustible dusts are present. It is commonly installed in environments that require strict compliance with hazardous area classifications and robust protection against impact, moisture, and corrosion. The high lumen output and broad voltage compatibility make it suitable for expansive, high-ceiling spaces and demanding industrial settings.
- hazardous location lighting
- explosion proof lighting
- paint booth lighting
- chemical processing facility lighting
- oil and gas facility lighting
- refinery lighting
- marine environment lighting
- wastewater treatment lighting
The fixture withstands exposure to corrosive atmospheres, airborne particulates, and high humidity. It is suitable for both indoor and outdoor hazardous areas, including marine and offshore environments. The IP66 and IK10 ratings ensure protection against water ingress and mechanical impact.
Performance and Functional Considerations
This 400W explosion proof LED delivers 56,000 lumens at 140 lumens per watt, replacing 1000W metal halide fixtures in hazardous locations. The 5000K color temperature provides clear, high-visibility illumination for process areas and inspection zones. The fixture supports 1-10V dimming for lighting control integration.
Standard beam angle is 120°, with optional 40°, 60°, or 90° optics for targeted distribution. The tempered glass lens and copper-free aluminum housing provide durability in corrosive and high-impact environments. Power factor exceeds 0.95, and total harmonic distortion is below 10%.
The fixture operates reliably from -40°F to 122°F. Surge protection is rated at 10kV. The design supports both yoke and pendant mounting for flexibility in installation height and orientation.
Installation and Long-Term Use
The fixture is supplied with yoke or 3/4 in NPT pendant mounting options, supporting ceiling, wall, or pendant installations. The 36 lb weight and 16.6 x 11.8 x 8.3 in dimensions require secure mounting to structural supports rated for hazardous locations.
Wiring is compatible with 100-277V or 277-480V systems. The fixture is designed for straightforward integration into new or retrofit hazardous area lighting circuits. The IP66 and UL 1598A ratings allow for installation in wet, marine, or outdoor environments.
Maintenance requirements are minimal due to the 50,000-hour L70 rated lifespan. The tempered glass lens and powder-coated aluminum housing resist corrosion and impact, reducing the need for frequent servicing in harsh environments.
How This Fixture Is Commonly Used
This explosion proof LED is typically installed in large hazardous classified areas where high-output, reliable lighting is required. It is used in process areas, paint booths, and chemical handling zones where compliance with Class I, II, and III standards is mandatory.
The fixture is also applied in oil and gas facilities, refineries, and marine environments where exposure to corrosive agents and flammable materials is routine. Wastewater treatment plants and solvent storage areas use this model for both general and task lighting in classified zones.
The high lumen output and robust construction make it suitable for both new construction and retrofit projects in hazardous industrial environments.
Safety, Certifications, and Warranty
This fixture is certified to UL 844 for hazardous locations, including Class I Division 2 Groups A, B, C, D; Class II Division 1 Groups E, F, G; Class II Division 2 Groups F, G; and Class III. It is also UL 1598 and UL 1598A Marine Outside Type listed, ABS certified, and carries ATEX and IECEx markings.
Ingress protection is rated at IP66, and impact resistance is rated at IK10. The fixture includes 10kV surge protection and is suitable for operation in ambient temperatures from -40°F to 122°F. ETL listed and rebate eligible.
A 5-year warranty is provided. All certifications and ratings are documented for compliance and inspection requirements.
Frequently Asked Questions
What hazardous classifications does this fixture meet?
This model is certified for Class I Division 2, Class II Division 1 and 2, and Class III hazardous locations.
What mounting options are available?
Yoke and 3/4 in NPT pendant mounting are standard.
Is this fixture suitable for marine or outdoor use?
Yes. It is UL 1598A Marine Outside Type and IP66 rated.
What is the expected lifespan?
Rated for 50,000 hours (L70).
What voltage ranges are supported?
100-277V or 277-480V input.
Application Questions and Clarification
This fixture is designed for hazardous locations requiring explosion proof lighting. It is not intended for general-purpose industrial or commercial lighting outside of classified areas. The certifications and ratings support use in environments with flammable gases, vapors, dusts, or fibers.
For applications outside of hazardous, marine, or chemical processing environments, refer to standard industrial or commercial lighting products. Confirm hazardous area classification and installation requirements before specifying this fixture.







