Altitude Derating
2.4 Altitude Derating
Benshaw VFDs are capable of operating at altitudes up to 3,300 feet (1000 meters) without
requiring an altitude derate. Table 3 provides the derating percentage to be considered
when using a drive above 3,300 feet (1000 meters).
z Note: For derating above 10,000ft consult Benshaw.
Thermal Derating
2.5 Thermal Derating
The ambient operating temperature range of the RSi GX is as follows:
•
NEMA 1 0-40°C
13
2 - TECHNICAL SPECIFICATIONS
Altitude Percent Derating (Amps)
3,300 feet 1,006 meters 0.0%
4,300 feet 1,311 meters 3.0%
5,300 feet 1,615 meters 6.0%
6,300 feet 1,920 meters 9.0%
7,300 feet 2,225 meters 12.0%
8,300 feet 2,530 meters 15.0%
9,300 feet 2,835 meters 18.0%
Table 3: Altitude Derating
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