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Environmental Requirements
Page 2-10
under all conditions of line at full load. The minimum and maximum
load current from each output is shown below.
2.6.4 Environmental Requirements
Operating Temperature: +5° to +50° C
Non-operating Temperature: -30° to +90° C
Operating Humidity: 5 to 95% (non-condensing)
2.6.5 Safety
This equipment is designed in accordance with UL478, UL910, NEC 725-
2(b), CSA, IEC, TUV, VDE Class A, and meets FCC Part 15, Class A limits.
Warning: It is the responsibility of the person who sells the system to
which the STH will be a part to ensure that the total system meets
allowed limits of conducted and radiated emissions.
2.6.6 Physical
Dimensions: 2.8H x 17.0W x 8.0D inches
(7.2 x 43.6 x 20.5 cm)
Predicted MTBF: STH-22/42: 653,987 hours
(mean time between failure) STH-24/44: 653,972 hours
Table 2-5. Power Supply Loads
Output Min. Load Max. Load Max Power
+5 Volts 0.50 Amps 3.0 Amps 15 Watts
+12 Volts 0.05 Amps 1.0 Amps 12 Watts