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14.0 SPECIFICATIONS
14.1 System Configuration
The STS2/PDU can be set in several different configurations, according to the model and location. The
configuration is set at the factory and does not need to be changed by the customer.
14.1.1 Frequency
The STS2/PDU accepts input frequencies of 50 Hz or 60 Hz, depending on the model ordered. The fre-
quency shall be within +/- 0.5 Hz of the nominal frequency.
14.1.2 Input Voltage
The STS2/PDU models are available to handle various voltages.
The input voltage must be three phase AC (3 wire-plus-ground).
The voltage shall be within +/- 10% of the nominal voltage.
The following table provides nominal voltages, listed according to frequency.
14.1.3 Output Voltage
The output voltage shall be three phase AC (4 wire-plus-ground).
14.1.4 System Current Ratings
These ratings are based upon continuous switch current rating. All units are 100% continuous cur-
rent rated. Some ratings are not available in certain voltages.
14.1.5 Grounding
Refer to 4.2 - System Grounding for specifications and instructions regarding grounding.
Table 20 Input voltage
60 Hz
(L-L)
50 Hz
(L-L)
208V 208V
380V 380V
400V 400V
415V 415V
480V -
600V -
Table 21 Output voltage
60 Hz
(L-L/L-N)
50 Hz
(L-L/L-N)
208/120V 208/120V
380/220V 380/220V
400/230V 400/230V
415/240V 415/240V
Table 22 System current ratings
Current
250A
400A
600A
800A