The Crouse-Hinds series VLL LED Zone 1 GRP Linear Light Fixtures are designed as highly durable and efficient replacements for traditional fluorescent luminaires in hazardous locations classified as Zone 1 and 21. Built for use in environments where flammable vapors, gases, ignitable dusts, fibers, or flying particles are present, these fixtures are ideal for indoor and outdoor applications requiring continuous illumination, even under the most extreme conditions such as heavy industrial, petrochemical, pharmaceutical facilities, marine settings, tunnels, platforms, and manufacturing plants. The fixtures operate reliably in highly corrosive, dusty, wet, hot, or cold environments and are also suitable for areas requiring frequent switching.
Constructed with a robust enclosure made of glass fiber-reinforced polyester (GRP) and a frosted polycarbonate diffuser, the VLL LED delivers a long operational life and high impact resistance. The silicone gasket and stainless steel fasteners enhance its resilience against environmental stress. Designed to meet the needs of both new installations and retrofit projects, the fixture is available in 2-foot and 4-foot versions, with lumen output options of 3100 lumens, 6400 lumens, and 7400 lumens. These high-performance models deliver an impressive efficacy of approximately 130 lumens per watt, offering significant energy savings and reducing maintenance costs over time.
The VLL LED is available in normal and emergency versions, with an optional self-contained battery system that provides emergency lighting for either 1.5 or 3 hours at 25% of the standard output. An inhibit switch is included as standard on emergency models, making them particularly well-suited for offshore unmanned platforms. A battery self-monitoring feature with visual indicators simplifies routine maintenance checks, ensuring the system remains ready when needed. The fixture supports color temperatures of 5700K by default, with optional 4000K or 5000K versions available. CRI ratings are 70 for 5700K and 80 for 4000K/5000K versions, ensuring appropriate visibility and color rendering.
For ease of installation, the VLL LED includes an optional sliding rail mounting system that allows for alignment with existing mounting holes, making retrofits straightforward. A new model has also been engineered specifically for pole-mount applications. This version incorporates a robust mounting assembly that improves wind resistance and eliminates cable exposure by integrating the cable gland into the unit. The externally accessible Ex e chamber in the pole-mount version simplifies termination procedures, further reducing installation effort and risk.
Certified to both IECEx and ATEX standards, the VLL LED meets stringent safety requirements. Certification markings include:
IECEx: Ex eb mb IIC T5 Gb, Ex db eb mb IIC T5 Gb, Ex db eb ib mb IIC T5 Gb (EM), Ex tb IIIC T80°C Db
ATEX: II2 G Ex eb mb IIC T5 Gb, II2 G Ex db eb mb IIC T5 Gb, II2 G Ex db eb ib mb IIC T5 Gb (EM), II2 D Ex tb IIIC T80°C Db
Additional certifications include IECEx NEP 21.0020X and SEV 24ATEX 0708X (EU-type examination certificate). The IP66 rating ensures full protection against dust ingress and high-pressure water jets, even during constant vibration. The normal operating temperature range spans from -40°C to 55°C, while the emergency models operate within -25°C to 45/50°C depending on model type.
The LED modules used in the VLL series are field-replaceable, and the fogged diffuser reduces glare to improve comfort and safety. With a rated service life of five years at a constant 55°C, these luminaires offer dependable, low-maintenance lighting solutions. The system power draw ranges from under 25W in the VLL 3L model to under 58W in the VLL 7L model, supporting input voltages of 100-240V AC (50/60 Hz) and DC 108-250V, with a power factor greater than 0.9. The terminals accommodate up to 6 mm² wiring, and entry sizes of M20 or M25 are available. Fixture dimensions are 732x178x125 mm for the VLL 3L model and 1333x178x125 mm for the VLL 5L and 7L models. Fixture weights range from 4.3 kg to 9.8 kg depending on size and whether the unit includes the emergency backup system.
Altogether, the Crouse-Hinds VLL LED series is a rugged, energy-efficient, and highly certified lighting solution for mission-critical hazardous area applications, offering long-term performance, straightforward maintenance, and versatile mounting options.
https://www.eaton.com/us/en-us/catalog/lighting-and-controls/vll-led-zone-1-grp-linear-light-fixtures.html
