Appleton™ Mercmaster™ III HID 50—250 Watt Luminaires
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The Mercmaster™ III 50–250-Watt luminaire offers a modular design with multiple component options to meet diverse lighting needs. Its enclosed, gasketed construction makes it ideal for hazardous locations, including Class I, Division 2 and Class II. Appleton’s heat-reducing design ensures 18% cooler operation, increasing the fixture’s durability. This allows the luminaire to function effectively in ambient temperatures up to +65°C (+149°F).
Specifications
NEC/CEC Certifications and Compliances
Class I, Division 2, Groups A, B, C, D; Class I, Zone 2, AEx nA nR IIC (Z2); Class I, Zone 2, AEx nR IIC (ZB); Class II, Division 1 and 2, Groups E, F, G; Class III; Type 4X; IP66; Simultaneous Exposure (Class I, Division 2/Class II, Division 1); Fixture
Standard Materials and Finishes
Mounting hoods, bodies and guards are cast copperfree (4/10 of 1% max.) aluminum with electrostatically applied baked gray epoxy-clad finish. Globes are heat-resistant prismatic glass; reflectors are FRP with a polyester finish. Hardware, catch assemblie
Typical applications include pulp and paper mills, processing plants, chemical plants, oil refineries, foundries, manufacturing plants, storage areas and marine applications
These medium base lamps accommodate 50-to-150-Watt high pressure sodium (HPS) or 175- and 250-Watt pulse start metal halide (PSMH) lamps. There is a wide range of voltages and ballast types available
A choice of heat-resistant prismatic glass refractors (NEMA II or V) or heat-resistant globes are available. They thread directly into the ballast housing and seals against a high-temperature silicone rubber gasket
Restricted breathing (AEx nR) and restricted breathing/nonsparking (AEx nA nR) options are available making the Mercmaster III an ideal HID luminaire for use in Zone 2 locations
For electrical protection, a ground wire is provided on each Mercmaster to bond hood and ballast housing
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