LED Light Fittings | Zone 2 Zone 22 Hazardous Area Lighting ATEX – Appleton ATX MLEDNA
led light fittings | mercmaster
Zone 2 & Zone 22
Product Category: Hazardous Area Lighting | Enclosed & Gasketed LED Light Fittings
Mercmaster LED light fittings, manufactured by Appleton ATX, deliver exceptional performance, efficiency and advanced engineering in hazardous area lighting.
Designed to light hazardous areas such as parking garages, storage areas, oil refineries, chemical plants, water and sewage treatment and paper mills, using as little as 32 Watts of power. The ATX Mercmaster LED light fitting can lower energy consumption while providing 60,000+ hours of running lamp life.
The MLEDNA Mercmaster light fitting is suitable for use in wet and marine locations, making it an ideal choice for coastal locations. In areas requiring better visibility and instant-on illumination, the range of Mercmaster LED light fittings provide a low maintenance, energy efficient solution.
Mercmaster is certified as NEC/CEC Class I, Division 2 and ATEX/IECEx Zone 2 and Zone 22 locations.
- Designed to fit conduit or cable installations and use the same wiring as HID fixtures
- Supplied with terminals to assure wiring is straightforward
- Upgraded LED arrays generate light outputs from 2,300 to 12,850 lumens (an equivalent of 70 W HID to 400 W HID lamps) to provide exceptional efficacy
- Eight distinctive lumen output versions are available with NEMA Type I or Type V light distribution patterns
- Universal drivers cover voltage requirements for 120-277 Vac and 347-480 Vac
- Electrical:Â 120-277 Vac, 50/60 Hz; 347-480 Vac, 50/60 Hz, Volts +/- 10%
- Lumens to Watts: 2300 lumens is 70 W HPS/PSMH | 3450 or 2900 lumens is 100 W HPS/PSMH | 4850 lumens is 150 W HPS/PSMH | 6076 or 6200 lumens is 175 W PSMH | 9455 lumens is 250 W HPS/PSMH |Â Â Â Â Â Â 11425 lumens is 350 W PSMH | 12850 is 400 W HPS/PSMH
- Ambient Temperatures: 2300-2900 lm: -40 °C to +65 °C (-40 °F to +149 °F) | 4850-6200 and 12850 lm: -40 °C to +55 °C (-40 °F to +131 °F) | 9455 and 11425 lm: -40 °C to +50 °C (-40 °F to +122 °F)
- Pole Terminal Block: 1 x 8-24 AWG; 1 x 0.75 to 6 mm² (0.0012 to 0.0093 in²)
- LED Light Fitting Standard Materials and Finishes: Mounting hoods, bodies and guards are cast copper-free (4/10 of 1% max.) aluminum with electrostatically applied baked grey epoxy-clad finish. All hardware and catch assemblies are stainless steel. Globes are polycarbonate
âž¡ View our complete range of ATEX Lighting products for Zone 1 & Zone 2 (Zone 21 & 22) hazardous area lighting applications.
Appleton ATX MLEDNA Mercmaster Series (Zones 2 – 21 & 22) LED Light Fittings | |
Ballast Bodies | Appleton ATX Order Code |
2300lm – 120/277 V – 50/60Hz – 1 x M20 cable gland supplied | MLEDNA70P5BU |
4850lm – 120/277 V – 50/60Hz – 1 x M20 cable gland supplied | MLEDNA15P5BU |
6076lm – 120/277 V – 50/60Hz – 1 x M20 cable gland supplied | MLEDNA17P5BU |
9455lm – 120/277 V – 50/60Hz – 1 x M20 cable gland supplied | MLEDNA25P5BU |
Appleton ATX MLEDNA Mercmaster Series (Zones 2 – 21 & 22) LED Light Fittings | |
Mounting Hoods | Appleton ATX Order Code |
Ceiling – M20 Entries | KPCM20 |
Wall – M20 Entries | KPWBM20 |
25° Stanchion – NPT 1″ 1/2 hub | KPS150 |
90° Stanchion – NPT 1″ 1/2 hub | KPST150 |
3/4″ Ring Bolt | Z00927 |
MERCMASTER LIGHT FITTING VARIATIONS
This hazardous area LED light fitting has a flexible and modular design to allow for retrofits and plant expansions to meet many installation requirements. The single-piece, lightweight aluminum body utilise the same six mounting hoods as the Mercmaster III Series. The Mercmaster is available for use with a variety of mounting fittings and fixtures to suit almost any application.
ATEX & IECE x Hazardous Area Certifications and Compliances
- ATEX
— Gas: Zone 2
– Conforming to ATEX 94/9/CE: II 3 G
– Type of Explosion Protection: Ex nA IIC Gc
– Temperature class:
• 70 Watts and 100 Watts equivalent: T4 [+40 ºC (+104 ºF)],
T4 [+55 ºC (+131 ºF)], T3 [+65 ºC (+149 ºF)]
• 150 Watts to 175 Watts equivalent: T4 [+40 ºC (+104 ºF)], T4 [+55 ºC (+131 ºF)]
• 250 Watts equivalent: T4 [+40 ºC (+104 ºF)], T4 [+50 ºC (+122 ºF)]
— Dust: Zone 22
– Conforming to ATEX 94/9/CE: II 3 D
– Type of Explosion Protection: Ex tc IIIc Dc
– Surface Temperature:
• 70 Watts and 175 Watts equivalent: T92 ºC (T197.6 ºF)
• 250 Watts equivalent: T79 ºC (T174.2 ºF)
— Ambient Temperature:
– 70 Watts and 100 Watts equivalent: -40 ºC to +65 ºC (-40 ºF to +149 ºF)
– 150 Watts to 175 Watts equivalent: -40 ºC to +55 ºC (-40 ºF to
+131 ºF)
– 250 Watts equivalent: -40 ºC to +50 ºC (-40 ºF to 122 ºF)
— ATEX Certificate: LCIE 11 ATEX 1008, LCIE 14 ATEX 3063
— IECEx Certificate: IECEx LCI 11.0058
— Index of Protection according EN/IEC 60529: IP66 - IECEx
— Gas: Zone 2
– Type of Explosion Protection: Ex nA IIC Gc
– Temperature class:
• 70 Watts to 175 Watts equivalent: T4 [+40 ºC (+104 ºF)], T4 [+55 ˚C (+131 ˚F)]
• 250 W equivalent: T4 [+40 ºC (+104 ºF)], T4 [+50 ºC (+122 ºF)]
— Dust: Zone 22
– Type of Explosion Protection: Ex tc IIIc Dc
– Surface Temperature:
• 70 W and 175 W equivalent: T92 ºC (198 ºF)
• 250 W equivalent: T79 ºC (198 ºF)
— Ambient Temperature:
– 70 W and 175 W equivalent: -40 ºC to +55 ˚C (-40 ºF to +131 ºF)
– 250 W equivalent: -40 ºC to +50 ºC (-40 ºF to +122 ºF)
— IECEx Certificate: IECEx LCI 11.0058
— Index of Protection according EN/IEC 60529: IP66 - NEC/CEC Related Products
• NEC, Class I, Division 2 photocells for classified use are available, see PCD2 Series.
— Mounting hoods with photocontrols are not rated IP66/67, Type 4X or Marine Outside Type (Salt Water). - EURASEC Certification
• EURASEC N° TC RU C-FR.ГБ05.B.00912 - Other Certification
• INMETRO Certificate: BVC12.1522 - DesignLights Consortium (for the following models)
• MLEDN15
• MLEDN17
• MLEDN25
• MLEDN35
• MLEDN40
➡ See our technical resource section for further detailed information about hazardous area Zones and T-Class ratings.

Appleton MLEDNA Mercmaster for use in hazardous locations defined by ATEX/IECEx
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Lighting | Control Stations | Plugs & Sockets | Junction Boxes | Hazardous Area ATEX Certified Electrical Equipment for Explosive Atmospheres | Zone 1 & Zone 2