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2–4
Regenerative DC Bus Supply Operation
Input Fusing
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ATTENTION: 1336 REGEN equipment does not
!
provide input power short circuit fusing. Branch circuit
breakers or disconnect switches cannot provide this
level of protection for converter and precharge unit
components. Specifications for the recommended fuse
size and type to provide input power protection against
short circuits at the Converter or Precharge Unit is listed
below.
Customer Supplied Fusing
Based on the maximum 1336 REGEN Package voltage rating, the
following customer supplied fuses are recommended.
ATTENTION: To guard against personal injury and/or
!
equipment damage caused by improper fusing, use only
the recommended line fuses specified.
Gould Shamut
A70QS must be
Catalog Number
used for all 1336
1336R-VB048
REGEN Line
Regeneration
1336R-VB078
Packages.
1336R-VB180
1336 REGEN Precharge Fusing
The 1336 REGEN Precharge Circuit Board is internally fused to
protect precharge components. When replacing 1336 REGEN
Precharge Unit fuses F1, F2
the type and size specified below.
Catalog Number
380-480VAC Rating
1336R-VB048PRE
FNQ-R4, 600V
1336R-VB078PRE
FNQ-R4, 600V
1336R-VB180PRE
FNQ-R8, 600V
380-480VAC Rating
Input AC Line Fusing Output DC Bus Fusing
70A
100A
125A
150A
250A
350A
F3 (shown in Figure 2.12), use only
&
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