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15.0 S
PECIFICATIONS
This section provides the specifications for the STS2.
15.1
System Configuration
The STS2 can be set in several different configurations, according to the model and location. The con-
figuration is set at the factory and does not need to be changed by the customer. These configurations
apply to both units, the Color Graphical Display and an LED Display.
15.1.1 Frequency
The STS2 accepts input frequencies of 50 Hz and 60 Hz. The frequency shall be within +/- 0.5 Hz of
the nominal frequency.
15.1.2 Input/Output Voltage
The STS2 models are available to handle various voltages.
The input voltage must be three phase AC (3 or 4 wire-plus-ground). The STS2 is designed to accept
an input neutral from each source. The neutral is switched in the 4-pole static transfer switch only.
The voltage shall be within +/- 10% of the nominal voltage.
The output voltage shall be three phase AC (3 or 4 wire-plus-ground). Nominal output voltage shall be
same as input voltage.
The following table provides nominal voltages, listed according to frequency
Table 17
Input/Output Voltage
60Hz
[L-L/L-N]
200/115V
208/120V
220/127V
240/139V
380/220V
400/230V
415/240V
480/277V
600/346V
15.1.3 System Current Ratings
These ratings are based upon continuous switch current rating. These ratings are for all voltages and
frequencies. All units are 100% continuous current rated.
Table 18
System Current Ratings
Current
100
250
400
600
800
1000
50 Hz
[L-L/L-N]
200/115V
208/120V
220/127V
240/139V
380/220V
400/230V
415/240V
110
Specifications
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