How LED Lighting Can Save Up To 80% Compared to Incandescent Fittings for Hazardous Area Lighting

Published 11 Jul 2019

Appleton A-51 Lighting Fixture

Appleton A-51 Lighting Fixture

  • uploaded by Chris Dodds - Thorne & Derrick Sales & Marketing Manager

Explosion proof Lighting

Appleton A-51 Lighting Fixture | LED Version

The field-proven Appleton A-51 hazardous area lighting fixture is now available in an LED version, a move that will save end-users as much as 80 percent on energy costs compared to the incandescent model, while simplifying retrofit applications for lighting installations in explosive atmospheres.ATEX

Appleton A-51 LED explosion proof light fitting is designed to provide the benefits of LED lighting in low mounting height applications previously served by incandescent luminaires.

Easy to install in new and retrofit applications, the light fitting fits in the same mounting hoods as traditional incandescent Appleton A-51 luminaires with no rewiring. Models are available for Group A, B, C and D areas (AAL) as well as strictly Group C and D areas (AL).

First introduced in 1951, the Appleton A-51 incandescent factory-seal luminaire has long been a standard for industrial and hazardous area lighting, providing safe illumination to workers in petrochemical processing, wastewater treatment centers, chemical plants and other areas classified as “hazardous” by the National Electrical Code where ignitable vapors, dust, moisture and corrosive environments may be present.

Because it uses the same mounting as the original A-51, the LED light fitting version transforms the traditional retrofit lighting process from an expensive, time-consuming task to simply removing the legacy incandescent fixture unit and replacing it with the new LED fixture unit. Appleton’s standardized threads fit all A-51 LED light fittings and fixtures and mounting hoods. In the rare event the A-51 LED requires maintenance, its “wireless” design allows the fixture unit to be threaded off the mounting hood for fast servicing or immediate exchange with a stand-by replacement.

“The new A-51 LED model brings the potential benefits of burning less energy, producing less heat, and requiring less maintenance to the thousands of A-51 incandescent fixtures currently in service,” said Christy Buttner, lighting product manager for Emerson Automation Solutions. “Best of all, there is no compromise in hazardous area lighting quality since the LED pattern and spread of light is very similar to the older incandescent version of the A-51.”

Appleton A-51 Lighting Fixture

Features & Benefits

  • Ideal for use in chemical and petrochemical plants, and in other heavy process areas where ignitable vapors, dust, moisture and corrosive atmospheres are present
  • Suitable for use in wet locations
  • Porcelain reflectors for multiple applications requiring light to be directed
  • Choice of pendant, ceiling, 25° stanchion, long bracket and 15° short bracket mountings
  • Fixtures are factory-sealed; no external sealing fittings required
  • Fixture units have standardized threads to fit all A-51™ mounting hoods. “”Wireless”” fixture unit easily threads off mounting hood for convenient servicing or for immediate exchange with “”stand-by”” unit
  • Globes in Appleton A-51 lighting fixtures are explosion proof and heat- and impact-resistant glass. Prismatic configuration on globe interior provides light control while allowing smooth exterior surface for cleaning. Fixture guards to protect globe are easily mounted to globe ring with 3 screws
  • Single sided and Three-Way Exit signs available
  • Light outputs up to 3,200 lumens
  • Ambient Temperature: -25 ºC to +55 ºC (-13 ºF to +131 ºF)
  • 6 kV Surge Protection

Led Lighting for Hazardous Areas

Leveraging years of experience in designing and manufacturing LED fixtures for some of the harshest environments, Emerson is offering the new luminaries or light fittings in an output range of 1,600 to 3,200 lumens to replace incandescent lighting fixtures up to 300 watts. The light fittings deliver crisp, bright light with excellent colour rendering for optimal visibility. The LED lamp’s long lifespan of 50,000+ hours maximizes its value while lowering the cost of ownership, improving work environment safety and delivering shorter paybacks to the hazardous area industries.

To guard against corrosion and chemical abrasion the Appleton A-51 LED’s fixture unit, mounting hoods and guards are manufactured from copper-free, die-cast aluminum, and feature Appleton’s exclusive epoxy powder coat finish to assure long-term corrosion resistance. In addition, end-users can specify either porcelain reflectors for standard applications or fiberglass reinforced polyester reflectors for exceptionally severe corrosive atmospheres.

New Appleton A-51 LED luminaries are suitable for wet locations, and are compliant with NEC/CEC certifications for Class I, Division 1, Groups A, B, C, D; Class II, Division, Groups F, G; Class III, and Class I, Division 1, Groups C, D; Class II, Division 1, Groups E, F, G; Class III hazardous applications.

Lighting Specifications

  • NEC/CEC Certifications and Compliances for Group A and B – Class I, Division 1, Groups A, B, C, D; Class II, Division, Groups F, G; Class III
  • NEC/CEC Certifications and Compliances for Group C and D – Class I, Division 1, Groups C, D; Class II, Division 1, Groups E, F, G; Class III
  • Lumens to Watts – Up to 1700 lumens is 100 – 150 W incandescent, 3000 lumens and more for 200 – 300 W incandescent
  • Standard Materials & Finishes – Fixtures, guards and mounting hoods are copperfree (4/10 of 1% max.) aluminum with two-coat epoxy-clad finish. Ceiling and bracket mounting hoods are malleable iron with aluminum adapters
  • Surge Protection – 6 kV
  • Standard Materials and Finishes – Fixtures, guards and mounting hoods are copperfree (4/10 of 1% max.) aluminum with two-coat epoxy-clad finish. Ceiling and bracket mounting hoods are malleable iron with aluminum adapters
Appleton A-51 Lighting Fixture LED Lighting

Appleton A-51 Lighting Fixture | LED Lighting

Further Reading

Appleton ATX

OFFICIAL & AUTHORISED STOCKIST DISTRIBUTOR | ATX | UK & Export Sales

ATEX Hazardous Area Electrical Equipment

Lighting ♦ Plugs & Sockets ♦ Control Stations ♦ Junction Boxes

Appleton ATX Hazardous Area Electrical Equipment

Full range of Appleton ATX Hazardous Area Products available from Thorne & Derrick stock and 5 Day Express Service:

  • Plugs & Sockets | Zone 1 & Zone 2 Hazardous Area Plug & Sockets EX ATEX Certified
  • Isolators & Safety Switches |  Zone 2 Isolators & Safety Switches EX ATEX Certified  
  • Lighting | Zone 1 & Zone 2 Hazardous Area Lighting EX ATEX Certified
  • Junction Boxes | Zone 1 & Zone 2 Hazardous Area Junction Boxes EX ATEX Certified
  • Control Stations | Zone 1 & Zone 2 Hazardous Area Control Stations EX ATEX Certified ATEXThorne & Derrick

ELECTRICAL & PROCESS INSTRUMENTATION EQUIPMENT

FOR EXPLOSIVE ATMOSPHERES

Thorne & Derrick International, based in the UK, are Specialist Distributors of Hazardous Area & Explosion Proof Equipment with IECEx & ATEX Certifications to the onshore and offshore oil, gas, petrochemicals and process industries.

Key Product Categories: Control Panels | Plugs & Sockets | Isolators | Enclosures & Junction Boxes | Lighting | Control Stations | Motor Starters | Heat Trace Cables & Systems | Gas Detection & Detectors | Fire Detection & Detectors | Heat Detectors | Electrical Heating & Heaters 

➡ Also Process Instrumentation Products: Ashcroft Pressure Gauges | ASCO Valves | Katronic Flow Meters | KROHNE Flow Meters | VEGA Level Sensors | Rotronic Temperature & Humidity Sensors | SIKA Pressure Gauges

ATEX Process Instrumentation

Trace Heating | System Design & Supply

Further Reading