Increased-safety LED high bay for Zone 2 gas and Zone 21/22 dust areas, in four sizes from 20 W to 400 W.
EXP-HC is an increased-safety LED high bay, Ex ec IIC Gc for Zone 2 gas areas and Ex tb IIIC Db for Zones 21 and 22. The light source and the driver sit in separate compartments of a die-cast aluminium body sealed to IP66, with three threaded entries on the power compartment.
Four sizes cover 20 W to 400 W: HC1 up to 100 W, the compact HC2 up to 70 W, HC3 up to 200 W and HC4 from 150 W to 400 W. Every catalogue wattage is rated T3 / T100 °C at ambients up to +55 °C under certificate IECEx PCET 25.0005X, Issue 1. Optics of 40°, 60°, 90° and 120° and five colour temperatures from 3000 K to 6500 K are offered, with flat, convex or spherical diffusers.
| Gas marking | Ex ec IIC T6…T3 Gc |
| Dust marking | Ex tb IIIC T85 °C…T100 °C Db |
| Suitable zones | Zone 2 (gas) · Zones 21, 22 (dust) |
| Certificate | IECEx PCET 25.0005X, Issue 1 · PCEC (Tianjin) Certification Services |
| Ambient temperature | -40 °C to +55 °C · T3 / T100 °C at every catalogue wattage |
| Input Voltage | 100-277V AC · 50/60Hz |
| Power | 20-400W |
| Power Factor | > 0.95 * |
| THD | < 10% * |
| Surge Protection | 4 kV / 6 kV * |
| Ingress Protection | IP66 |
| Impact Resistance | IK08 · IK10 with wire guard * |
| Cable Entries | 3/4" NPT, M25, M20 or M16 (three) |
| Dimensions | HC3: Ø370 × 190 mm |
* NLC datasheet declaration, not covered by the IECEx certificate.
| Housing | Die-cast aluminium, powder coated * |
| Cover | Flat, convex or spherical glass · flat or convex PC * |
| Mounting | Ceiling · wall · stanchion 25° · pendant · surface |
| Options | 0-10V dimming * · wire guard * |
| Efficacy | 140 lm/W nominal * |
| CRI | >70 standard · >80 option |
| Beam Angle | 40° · 60° · 90° · 120° |
| CCT | 3000K to 6500K |
| HC1, HC2, HC3 up to 200 W | T3 / T100 °C, -40 °C to +55 °C |
| HC4 up to 400 W | T3 / T100 °C, -40 °C to +55 °C |
| Need T4 or cooler? | Choose EXP-HB, EXP-HD, EXP-LI or EXP-LP |
| Order code example | NLC EXP-HC3-150W40D60 = HC3, 150 W, 4000 K, 60° optic |
* NLC datasheet declaration, not covered by the IECEx certificate.
Contact our engineering team to match the model to your area classification drawing and for ordering codes.
| Model | Power | Nominal Flux | Body Size | Beam Angle |
|---|---|---|---|---|
| EXP-HC1 | 20 · 30 · 40 · 50 · 60 · 70 · 80 · 90 · 100 W | 2,800 to 14,000 lm | Ø270 × 173 mm | 40° · 60° · 90° · 120° |
| EXP-HC2 | 20 · 25 · 30 · 35 · 40 · 50 · 60 · 70 W | 2,800 to 9,800 lm | Ø230 × 172.4 mm | 40° · 60° · 90° · 120° |
| EXP-HC3 | 20 · 30 · 40 · 50 · 60 · 80 · 100 · 120 · 150 · 180 · 200 W | 2,800 to 28,000 lm | Ø370 × 190 mm | 40° · 60° · 90° · 120° |
| EXP-HC4 | 150 · 180 · 200 · 250 · 300 · 350 · 400 W | 21,000 to 56,000 lm | Ø480 mm | 40° · 60° · 90° · 120° |
Nominal flux is calculated at the 140 lm/W NLC declares, not a laboratory measurement.
