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

Modular design allows scores of fixture component combinations to meet installation and lighting needs. Mounting hoods include cone-shaped pendant, standard pendant, flexible pendant, ceiling and wall (tapped for 3/4" or 1" NPT), 25° angle stanchion

Reflector choice includes standard dome and 30° angle types, both made of fiberglass reinforced white polyester

highly resistant to unusually corrosive applications. Reflectors are vented for cooler, dirt-free operation and maintained lumen output.

Hinge has high lip for added safety during installation and servicing. Hinge and bolt construction assures 360° compression at all points on ballast housing gasket for positive sealing. Swing-away design of captive bolt and nut simplifies servicing

Body gaskets and globe gaskets are high-temperature silicone rubber

All Mercmaster III mounting hoods have provision for easy field installation of fuses in fixtures (see fuse kit listings on catalog pages)

Guards are available to protect globes from damage. Keyhole slots allow easy installation and are secured with stainless steel screws

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