| Case-temperature rating |
Working Tcase -40 to +90°C; separately listed maximum case temperature +90°C. A case-temperature rating is not an unrestricted ambient-temperature rating. |
| Ambient/load derating |
Recommended horizontal mounting: 230 VAC: 100% through +50°C, then 60% at +70°C. 110 VAC: 100% through +40°C, then 60% at +50°C. Meet the ambient-load curve and case-temperature limits together. |
| Case/load curve |
For horizontal mounting, the case-load graph remains at 100% through +90°C and ends there. Observe the working-case rating above as well. |
| Low-temperature startup |
The −40 to −30°C portion of the ambient curve applies at 230 VAC only. Below 110 VAC and at −30°C, restarting may occur within the first 5 seconds after power-on. |
| Cooling and altitude |
Fanless free-air convection. Nonstandard mounting requires appropriate derating. Above 2000 m, reduce the allowed ambient temperature by 3.5°C per additional 1000 m. |
| Working humidity |
20–95% RH, non-condensing. |
| Storage conditions |
-40 to +80°C; 10–95% RH, non-condensing. |
| Temperature coefficient |
±0.03%/°C over 0–60°C. |
| Vibration |
10–500 Hz, 5 G; 12 minutes per cycle, 72 minutes along each X, Y and Z axis. |
| Performance-plot conditions |
PF, THD and efficiency plots use Tcase 75°C. The L-type examples do not replace the tabulated efficiency for this output version. |
| Lifetime reference |
Typical operating life >50,000 hours with the marked tc/TMP point about 75°C or less. This is an operating-life reference, separate from warranty. |
| MTBF |
2300.1 K hours, Telcordia SR-332; 200.7 K hours, MIL-HDBK-217F at 25°C; catalog minimum estimates. |