5 - 3 1
5
Installation and Wiring
WARNING:
The electrolyte leakage of the batteries can lead to serious accidents. For
safety’s sake, you must insulate the batteries properly (using insulated trays or
boxes) from the metal cabinets and racks.
y
Please follow your UPS rating to install an appropriate protective device for each exter-
nal 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
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; for relevant installation diagrams, please
refer to
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~
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.
Table 5-4: External Battery Cabinet’s Protective Device (Default Battery Q’ty: 12Vdc
× 40 PCS)
UPS Rating
Power
Module
Q’ty
Protective
Device’s
Current
Protective Device’s Voltage
100kVA/ 100kW
2
250A
(1) 4-pole DC circuit breaker or
4-pole DC isolated switch (per
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(2) 3-pole DC circuit breaker or
3-pole DC isolated switch (per
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'&IXVHYROWDJH9GF
150kVA/ 150kW
3
400A
200kVA/ 200kW
4
500A
250kVA/ 250kW
5
700A
300kVA/ 300kW
6
800A
NOTE:
1.
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number of batteries, please contact Delta service personnel for protective
device’s current and voltage.
2. The above-mentioned DC circuit breaker, DC isolated switch and DC fuse
are optional. If you want to buy any of them, please contact Delta service
personnel.
3. If you need to parallel multiple units of external battery cabinets, please
contact Delta service personnel for relevant information.
4. To extend backup time, you can parallel up to eight units of external battery
cabinets to the UPS. Please note that (1) the number of the batteries in each
paralleled external battery cabinet and (2) the cable length of each battery
string must be the same.
Summary of Contents for DPH-300K
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Page 227: ...8 1 8 Optional Accessories 8 Optional Accessories ...
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Page 231: ...9 1 9 Maintenance Maintenance ...
Page 233: ...A1 1 Appendix 1 7HFKQLFDO 6SHFL FDWLRQV Technical 6SHFL FDWLRQV A1 A1 ...
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Page 237: ...A2 1 Appendix 2 Warranty Warranty A2 A2 ...
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