Eaton 9SX Series - Page 19

Page 19
614-20306-00 - 9SX 0-6 KVA EMEA_EN
3. Installation
UPS with separate Normal and Bypass inputs
Change in SEA between upstream and downstream or galvanic isolation required
The transformer is not necessary if:
• Normal and Bypass inputs are connected to the same source,
• and wires cross sections and wires lengths on Input and Bypass inputs are identical,
• and upstream protection is provided by only one switch with RCD (residual current
device) for Input and Bypass inputs.
UPS with separate Input and Bypass inputs, supplied by separate sources
Change in SEA between upstream and downstream or galvanic isolation required
Frequency converter (without Bypass input)
Confi guration used when the frequency of the application differs from the Mains, example: marine
requirements.
Main low
voltage
switchboard
(MLVS)
Bypass
Input
Load
Output
Main low
voltage
switchboard
(MLVS)
Bypass
Input
Load
Output
Bypass
Bypass
Input
Input
Load
Load
MLVS1
MLVS1
MLVS2
MLVS2
Output
Output
Bypass
Input
Load
MLVS1
MLVS2
Output
Main low
voltage
switchboard
(MLVS)
Input
Load
Output