Attributes . TEMPERATURE: 15 to 40 degC (5 to 104 degF), 40 to 50 degC (104 to 122 degF) with derate. No frost allowed. / COOLING: Forced Air / ALTITUDE: Rated current available at 0 to 1000 m (3300 ft) reduced by 1% per 100 m over 1000 m (3300 ft) to 2000 m (6600 ft). / RELATIVE HUMIDITY: Lower than 95% (without condensation). / VIBRATION: Seismic Certified. . Names