5 - 3 3
5
Installation and Wiring
(4) The maximum tripping current of the fast-acting DC circuit breaker or/ and the
maximum melting current of the fast-acting DC fuse mentioned above are 6 times
the values shown in
7DEOH
. These maximum values are suggested for general
applications only. For actual maximum values, the maximum short-circuit capacity
of the on-site batteries must be taken into consideration. Please contact Delta
customer service for relevant information.
y
The external battery cabinet’s protective device installation methods are as follows.
Option 1: Installation of a 4-pole DC circuit breaker or DC isolated switch (per pole voltage
9GFFRQQHFWHGLQVHULHVZLWKD'&IXVHYROWDJH9GF
External
Battery
Cabinet
-
N
+
UPS
4-Pole DC Circuit Breaker
or DC Isolated Switch
DC Fuse
-
N
+
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&RQQHFWHGLQ6HULHVZLWKD'&)XVH
Option 2: Installation of a 3-pole DC circuit breaker or DC isolated switch (per pole voltage
9GFFRQQHFWHGLQVHULHVZLWKD'&IXVHYROWDJH9GF
-
N
+
UPS
External
Battery
Cabinet
3-Pole DC Circuit Breaker
or DC Isolated Switch
DC Fuse
-
N
+
)LJXUH,QVWDOODWLRQRID3ROH'&&LUFXLW%UHDNHURU'&,VRODWHG6ZLWFK
&RQQHFWHGLQ6HULHVZLWKD'&)XVH
Summary of Contents for DPH-300K
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Page 227: ...8 1 8 Optional Accessories 8 Optional Accessories ...
Page 230: ......
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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