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400 Watt Square Explosion Proof LED Light | 56000 Lumens | Class 1 Div 2 | Class 2 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: 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: 16.6 in X 11.8 in X 8.3 in
- Weight: 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
This 400 Watt Square Explosion Proof LED Light delivers 56,000 lumens at 5000K. It is designed for hazardous locations requiring Class I Division 2, Class II Division 1 and 2, and Class III protection. The fixture is built with a copper-free aluminum housing and a tempered glass lens.
It operates on either 100V-277V or 277V-480V input, supporting a wide range of industrial and commercial electrical systems. The fixture offers a standard 120° beam angle, with optional 40°, 60°, or 90° optics for targeted distribution.
The fixture replaces 1000 Watt metal halide systems and is rated for 50,000 hours (L70). It is finished in gray and weighs 36 lbs, with overall dimensions of 16.6 x 11.8 x 8.3 inches.
Mounting options include yoke or 3/4 inch NPT pendant. The fixture supports 1-10V dimming and operates at 50-60Hz with a power factor greater than 0.95 and THD below 10%.
Where This Product Fits Best
This fixture is suitable for hazardous environments where explosive gases, vapors, or dusts may be present. It meets UL 844 for hazardous locations, with 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 ratings.
It is also UL 1598 rated for wet locations and UL 1598A Marine Outside Type, making it appropriate for outdoor, marine, and washdown areas. The IP66 rating allows use in locations exposed to heavy water jets and dust.
With an operating temperature range of -40°F to 122°F, the fixture is suitable for cold storage, process areas, and outdoor hazardous locations. The IK10 rating supports use in areas where impact resistance is required.
ABS certification supports use in marine and offshore environments. ATEX and IECEx markings allow use in international hazardous area applications where these certifications are required.
Performance and Functional Considerations
This fixture provides 140 lumens per watt, supporting high-output requirements in hazardous locations. The 400 watt input enables direct replacement of 1000 watt metal halide fixtures, reducing energy use while maintaining light levels.
Beam angle options (120°, 90°, 60°, 40°) allow adaptation to different mounting heights and coverage needs. The tempered glass lens is suitable for environments where chemical resistance and durability are required.
The fixture supports both 100V-277V and 277V-480V input, allowing compatibility with a range of electrical systems. 1-10V dimming is available for integration with lighting controls.
Surge protection is rated at 10kV, supporting installation in areas with unstable power or frequent switching. The fixture maintains a power factor above 0.95 and THD below 10% for electrical system compatibility.
Installation and Long-Term Use
The fixture can be mounted using either a yoke or a 3/4 inch NPT pendant, supporting ceiling, wall, or pendant installations. The 36 lb weight and compact dimensions allow for installation in confined or overhead spaces.
The copper-free aluminum housing resists corrosion in marine and chemical environments. The IP66 rating allows for high-pressure washdown and outdoor use without risk of water ingress.
IK10 impact resistance supports installation in areas with risk of mechanical impact or vibration. The fixture is designed for a 50,000 hour (L70) lifespan, reducing maintenance intervals in hard-to-access locations.
Operating temperature range of -40°F to 122°F allows use in freezers, process areas, and outdoor environments without performance loss. The fixture is finished in gray for industrial compatibility.
How This Fixture Is Commonly Used
Once installed, this fixture provides consistent, high-output illumination in hazardous areas. The beam angle can be selected to match the coverage needs of the space, whether wide-area or focused lighting is required.
The 1-10V dimming capability allows you to adjust light levels as needed for process changes or energy management. The fixture operates reliably in environments with dust, water, or corrosive agents due to its IP66 and IK10 ratings.
Maintenance requirements are minimized due to the 50,000 hour rated life and robust construction. The fixture can be cleaned using standard washdown procedures without risk of water ingress or damage.
In day-to-day use, the fixture maintains stable output and color temperature, supporting visual clarity and safety in hazardous locations. The housing and lens are designed to withstand impacts and harsh cleaning routines.
Safety, Certifications, and Warranty
This fixture is UL 844 listed for hazardous locations, including Class I Division 2, Class II Division 1 and 2, and Class III. It is UL 1598 rated for wet locations and UL 1598A Marine Outside Type.
The fixture carries ABS certification. ATEX and IECEx markings are present for international hazardous area use.
The product carries ETL and DLC Premium listings. The IP66 rating allows use in wet and dusty environments, and the IK10 rating supports use in areas with risk of impact.
LED Lighting Supply provides a 5 year warranty on this fixture.
Frequently Asked Questions
What voltage does this fixture support?
This fixture operates on either 100V-277V or 277V-480V input.
What is the lumen output and wattage?
The fixture delivers 56,000 lumens at 400 watts.
What hazardous location ratings does this fixture carry?
This fixture is rated for 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.
What mounting options are available?
Mounting options include yoke or 3/4 inch NPT pendant.
What certifications does this fixture have?
This fixture is UL 844, UL 1598, UL 1598A, ABS, ETL, and DLC Premium listed. ATEX and IECEx markings are present.
What is the warranty period?
LED Lighting Supply provides a 5 year warranty on this fixture.
Application Questions and Clarification
This product description reflects the provided specifications, ratings, and configuration options. For questions related to site-specific conditions, electrical compatibility, control integration, or application requirements not addressed in the provided data, our team is available to provide clarification.







