Appleton A-51 Explosion-Proof Light

Appleton A‑51 LED Factory Sealed Luminaires are explosion‑proof fixtures designed for hazardous locations, including Class I, Division 1, Groups A–D, with a compact, lightweight housing that fits the same mounting hoods as the original A‑51 incandescent luminaires for easy retrofit. The LED lineup covers models equivalent to 100–300 W incandescent lamps and 100–300 W HID lamps, delivering a long service life with L70 ratings over 55,000 hours and a rated color temperature of 5000 K. They are cULus listed for hazardous locations, Design Lights Consortium (DLC) qualified for applicable models, and carry a 10‑year standard warranty. Electrical characteristics span 120–277 VAC at 50/60 Hz (some configurations support 100–300 VDC), with a high brighter output and a refined optical system that provides uniform light distribution and a luminous efficacy up to about 131 lm/W. The globe is explosion‑proof and heat‑ and impact‑resistant, with replaceable parts such as globe assemblies, guards, and reflectors to extend service life. Built to endure demanding environments, these luminaires withstand a wide operating temperature range from −40 °C to +55 °C (−40 °F to +131 °F) and include 6 kV/5 kA surge protection. Weighing around 6.1 kg (13.4 lb), the A‑51 LED model emphasizes a small footprint and mounting versatility, offering practical solutions for low mounting height installations while delivering energy‑efficient, durable illumination in hazardous locations.