Cut Sheet

ManualsBrandsAppleton ManualsExplosion-ProofAPP MERCMASTER III EN

MercmasterIIIfixturesarelistedfor“SimultaneousExposure”tocombinationsofClassI,Division2andClassII,Division1hazardous

conditions.

“T” Numbers for Mercmaster III Fixtures

Lamp

Supply

Wire

Temp.

(°F/°C)

Ambient

Temp.

(°F/°C)

Class I, Division 2 Class II, Division 1 Groups E, F and G 

Simultaneous Exposure

Class I, Division2 / Class II, Division 1

Watts Type Globe

Globe &

Reflector

Globe

8”

Refractor Globe

Globe &

Reflector

Globe

8”

Refractor Globe

Globe &

Reflector

Globe

8”

Refractor

194/90 104/40 T3C T3B — T3C T4A T4 — T6 T3A T3 — T3C

50 HPS 194/90 131/55 T3A T3A — T3A T4 T3B — T5 T3 T3 — T3A

194/90 149/65 T3A T3 — T3A T3C T3C — T4A T2D T2D — T3

194/90 104/40 T3B T3A — T3C T4 T3C — T6 T3 T3 — T3A

70 HPS 194/90 131/55 T3A T3A — T3B T3C T3C — T5 T2D T2D — T3

194/90 149/65 T3 T3A — T3A T3C T3B — T4A T2C T2C — T3

194/90 104/40 T2D T2D T3 T3 — T3A (EF) T3 (EF) — — — — —

100 HPS 194/90 104/40 — — — — T3B — T4A T4A T2B T2B T2C T2C

194/90 131/55 T2D T2D T3 T3 — — T4 T4 — — T2B T2B

194/90 149/65 T2D T2D T2D T2D — — — — — — — —

194/90 104/40 T2B T2B — T2C — — — T3C T2 — — T2B

150 HPS 194/90 104/40 — — — — T3 (EF) — — — — — — —

194/90 131/55 T2B T2A — T2B — — — — — — — —

70 PSMH

194/90 104/40 T3A T3A — T3A — — — T3C — — — —

194/90 131/55 T3A T3A — T3A — — — T3C — — — —

194/90 149/65 T3 T2 — T3 — — — T3C — — — —

100 PSMH

194/90 104/40 T3 T3 — T3 — — — T3C — — — T2B

194/90 131/55 T3 T3 — T3 — — — T3C — — — T2A

194/90 149/65 T2D T2D — T2D — — — T3C — — — —

150 PSMH

194/90 104/40 T2B T2B — T2B — — — T3C — — — T2B

194/90 131/55 T2A T2A — T2B — — — T3C — — — T2A

257/125 149/65 T2A T2 — T2B — — — T3C — — — —

175 PSMH

194/90 104/40 T2B T2B — T2B — — — T3C — — — T2B

194/90 131/55 T2A T2A — T2B — — — T3C — — — T2A

221/105 149/65 T2A

T2 — T2B — — — — — — — —

200 PSMH

194/90 104/40 T2B T2B — T2B — — — T3B — — — —

194/90 131/55 T2B T2B — T2B — — — — — — — —

250 PSMH

194/90 104/40 T2 T2 — T2 — — — — — — — —

194/90 131/55 T2 T2 — T2 — — — — — — — —

175

MH V

194/90 104/40 T2B T2B — T2B — — — T3C — — — —

194/90 131/55 T2A T2A — T2B — — — T3C — — — —

250

MH V

194/90 104/40 325 325 — T2 — — — T3B — — — —

“T” Numbers Represent the Maximum Lamp Temperature for Class I, Division 2 Locations and

Maximum Surface Temperature Under Dust Blanket for Class II, Division 1 Locations.

“T”

Number T1 350 325 T2 T2A T2B T2C T2D T3 T3A T3B T3C T4 T4A T5 T6

Temp.

Range

(˚ºF)

664-

842

619-

662

574-

617

538-

572

502-

536

448-

500

421-

446

394-

419

358-

392

331-

356

322-

329

277-

320

250-

275

214-

248

187-

212

185

Temp.

Range

(°C)

351-

450

326-

350

301-

325

281-

300

261-

280

231-

260

216-

230

201-

215

181-

200

166-

180

161-

165

136-

160

121-

135

101-

120

86-

100

 All Class II T Numbers are E, F, G unless otherwise indicated.

V CSA Certification Only.

Class I, Division 2, Groups A, B, C, D

Class I, Zone 2, AEx nA nR IIC (Z2)

Class I, Zone 2, Ex nR IIC (Z) V

Class I, Zone 2, AEx nR IIC (ZB)

Class II, Division 1 and 2, Groups E, F, G

Class III

Simultaneous Exposure (Class I, Division 2/

Class II, Division 1)

Fixtures Outside Type (Salt Water)

Type 4X

IP66

Lighting

Lighting: EncLosEd and gaskEtEd — arEa — hid

Visit our website at www.appletonelec.com or contact us at (800) 621-1506.

946

Mercmaster

™

III HID 50-250 Watt Luminaire Thermal Performance

Class I, Division 2; Class II, Division 1; Simultaneous Exposure to Hazardous Conditions of Both Classifications

Temperature Identification Numbers of Mercmaster III fixtures.