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2. Insert dust cover into the rackmount ear screw holes that are not being used.
POWER WIRES INSTALLATION
Use cable cross section and protective device specification:
Protective earthing conductor
Min cross section
Input L, N
Min conductor cross section
Input breaker
External Battery Cabinet Fuse
in Positive Pole(+), Negative pole(-)
External Battery Cabinet Breaker in Positive
Pole(+), Negative pole(-)
Torque for fixing above terminals
1. It is suggested to install an external isolating device against current back feed between mains input and
UPS. After the device is installed, it must add a warning label with the following wording or the equivalent on
the external AC contactor: RISK OF VOLTAGE BACKFEED. Isolate the UPS before operating on this
circuit, then check for hazardous voltage between all terminals.
2. No matter the UPS is connected to the mains power or not, the output of the UPS may be electrically live.
The parts inside the unit may still have hazardous voltage after turning off the UPS. To make the UPS have
no output, turn off the UPS, and cut off the mains power supply, wait the UPS shut down completely, finally
cut off the battery connection.
3. Open the terminal block cover located on the rear panel of UPS, please refer to the appearance diagram.
4. It is recommended to select the UL1015 10AWG (6mm²) or other insulated wire which complies with AWG
Standard for the UPS input and output wirings.
Model
Fig. 1: Typical external isolating device installation
ZEUS51E6K
(UL1015 10AWG)
(UL1015 10AWG)
40A/250Vac
30A/240Vdc
32A/240Vdc
3.95~4.97Nm (35~44 1b in)
- 7 -
6mm²
6mm²
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