3. Installation and Wiring
Mains Primary input Line
Bypass Secondary/Bypass input line (optional)
Vin-L1: Primary input Phase L1
Vin-L2: Primary input Phase L2
Vin-L3: Primary input Phase L3
Vin-N: Input Neutral for primary and secondary input
BPS-L1: Secondary input Phase L1
BPS-L2: Secondary input Phase L2
BPS-L3: Secondary input Phase L3
WARNING: In the case of dual input operation, ensure the copper wire between each input line has been
removed. The AC input and the AC bypass supplies must be referenced to the same neutral point.
Choose the appropriate power cable (refer to Table 3.1). The diameter of the connection terminal of the cable should be
greater than or equal to that of the connection poles.
WARNING!
If the load equipment is not ready to accept power upon the arrival of the commissioning engineer, then
ensure that the system output cables are safely isolated at their ends.
Connect the safety earth and any necessary bonding earth cables to the copper earth screw located on the
floor of the equipment below the power connections. All cabinets in the UPS must be grounded properly.
CAUTION!
Installation and wiring must be performed in accordance with local codes/regulations and installed using
the following instructions by a qualified electrical service technician only.
Input L1 (A)
Input L2 (B)
Input L3 (C)
UPS
Input N
Figure 3-16: Input and Output Connections
31
Output
Vout-L1: Output Phase L1
Vout-L2: Output Phase L2
Vout-L3: Output Phase L3
Vout-N: Output Neutral
PE: Grounding
BAT+: Positive terminal of the batteries string
BATN: Battery Center Tap N
BAT-: Negative terminal of the batteries string
Output L1 (A)
Output L2 (B)
Output L3 (C)
Output N
Load