Appleton™ Mercmaster™ Jr. Luminaires

Availability : In stock

Mercmaster™ Jr. Luminaires are integrally ballasted HID fixtures designed for use in hazardous locations. They uses one-fifth as much electrical energy as incandescent and three-quarters as much as fluorescent. These enclosed and gasketed fixtures are suitable for hazardous and adverse locations where combustible dusts, severe weather conditions or excessive moisture or dirt are present

Check Items with us before making a purchase and Send Your Inquiry to



  • Typical applications include tunnels, walkways, bridges, storage facilities, processing plants, parking lots, foundries, manufacturing plants, power plants and other locations where moisture, dirt, dust or corrosive atmospheres are encountered; as well as wet and outdoor saltwater locations
  • These medium base lamps accommodate 250 or 400 Watt high pressure sodium lamps
  • Choice of prismatic globe, prismatic glass refractor or polycarbonate globes are available for select wattages
  • Mounting hoods include pendant, ceiling, outlet box, wall and stanchion mountings. The standard pendant mounting hood is designed for rigid or flexible mounting. The balanced round design of the standard pendant automatically hangs plumb when used with a flexible hanger
  • 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. They secure to ballast housing with stainless steel screws threading into stainless steel inserts
  • Safe, easy servicing without disconnecting any wiring. Only wiring required is attaching two wires to the connection block in the mounting hood. So threading the fixture unit onto the mounting hood makes electrical connection
  • The “”Wireless”” design allows the fixture unit to easily thread on the mounting hood for installation or off for convenient servicing reducing installation and maintenance costs
  • Quick, easy conversion from Appleton’s V-51™ incandescent fixture to the Mercmaster Jr. HID; just remove V-51™ fixture unit and thread Mercmaster Jr. fixture unit onto existing V-51™ mounting hood
  • Guards are available to protect globes from damage
  • Ballast has standard non-PCB biodegradable capacitors


NEC Certifications and Compliances (With Globe)
35 W, 50 W: Class I, Division 2, Groups A, B, C, D; Class II, Division 1 and 2, Groups E, F, G; Class III, 70 W: Class I, Division 2, Groups A, B, C, D; Class II, Division 1 and 2, Groups E, F. 100 W, 150 W: Class I, Division 2, Groups A, B, C, D
NEC Certifications and Compliances (With NEMA V Refractor)
35 W, 50 W, 70 W, 100 W: Class I, Division 2, Groups A, B, C, D; Class II, Division 1 and 2, Groups E, F, G; Class III. 150 W: Class I, Division 2, Groups A, B, C, D
Specific Wattages
35 W, 50 W, 70 W, 100 W, 150 W HPS
Ambient Temperature
+25 °C to +40 °C (+77 °F to +104 °F)
120 V 60 Hz
Standard Materials and Finishes
Mounting hoods: copperfree (4/10 of 1% max.) aluminum or malleable iron. Bodies: copperfree (4/10 of 1% max.) aluminum. Guards: copperfree (4/10 of 1% max.) aluminum or steel. Aluminum products have electrostatically applied epoxy powder coat finish. Malleable iron products have triple coat finish
Globe Materials
The 35 to 100 watt globes are prismatic glass and polycarbonate. The 150 watt globe and the refractor are heat-resistant prismatic glass