| Overcurrent and short circuit |
Overcurrent: 95–108% of rated output, constant-current limiting, automatic recovery after removal of the fault. Short circuit: hiccup mode with automatic recovery. |
| Overvoltage and temperature protection |
Overvoltage threshold: 54–63 V. Overvoltage and overtemperature shut down the output; re-power to recover. |
| Case temperature and cooling |
Fanless free-air convection; mount horizontally. Working case temperature Tc: −40 to +90°C, subject to derating. Cold operation from −40 to -25°C is shown at 230 VAC only. Tc is case temperature, not ambient temperature. |
| Ambient derating |
The ambient curve allows 100% load up to 60°C, falling to 60% at 70°C. The constant-current operating region is rated to a maximum ambient temperature of 60°C. Maintain the case-temperature limit and apply both input and ambient derating. |
| Input derating |
At 100–180 VAC, use the exact low-input power rating above; the family static curve shows approximately 75% load in this region and rises to 100% by 200 VAC, remaining there through 305 VAC. The plotted input is 60 Hz. |
| Humidity, storage and coefficient |
Working humidity: 20–95% RH, non-condensing. Storage: −40 to +90°C, 10–95% RH. Temperature coefficient: ±0.03%/°C over 0–60°C. Vibration: 10–500 Hz, 5G, 12 min/cycle, 72 min along each X, Y and Z axis. |
| Service life and reliability |
Typical life exceeds 50,000 hours at Tc ≤70°C; higher case temperature reduces life, as shown by the lifetime curve. Five-year warranty under the stated installation and operating conditions. MTBF: 2391.4K / 190.7K hours, respectively Telcordia SR-332 and MIL-HDBK-217F at 25°C. |
| Performance-curve conditions |
PF plots use constant-current operation. THD and efficiency curves are representative of ELG-240-48 at Tc = 80°C. Curves illustrate load/input dependence; the exact output rating and typical efficiency for this SKU remain those listed above. |
| Lighting-system integration |
Install behind a mains switch for the stated ErP lighting-application compliance. |