Delta Modulon DPH Series User Manual page 67

WARNING:
The electrolyte leakage of the batteries can lead to serious accidents. For
safety concerns, you must insulate the batteries properly (using insulated trays
or boxes) from the metal cabinets and racks.
• Installation of the External Battery Cabinet's Protective Device
Please follow your UPS rating to install an appropriate protective device for each
external battery cabinet. There are four installation methods for selection.
(1) A 4-pole DC circuit breaker or DC isolated switch connected in series with a DC
fuse
(2) A 3-pole DC circuit breaker or DC isolated switch connected in series with a DC
fuse
(3) A 4-pole DC circuit breaker
(4) A 3-pole DC circuit breaker
For relevant values, please refer to
Figure 5-17 Figure 5-20
and
Table 5-4: External Battery Cabinet's Protective Device (Default Battery Q'ty: 12Vdc ×
40 PCS)
UPS Rating
50kVA/ 50kW
100kVA/ 100kW
150kVA/ 150kW
200kVA/ 200kW
Table 5-4
.
Protective
Power
Module Q'ty
1
2
3
4
. For installation diagrams, please refer to
Device's Protective Device's Voltage
Current
•
150A
300A
•
400A
•
500A
4-pole DC isolated
switch/ DC circuit
breaker: voltage per
pole ≥ 250 Vdc.
3-pole DC isolated
switch/ DC circuit
breaker: voltage per
pole ≥ 500 Vdc
DC fuse: voltage ≥ 500
Vdc
67