CHAPTER 3 - INSTALLATION AND CONNECTION
50
Ultra-fast fuses (aR), regular fuses or circuit breakers:
For Coordination Type 1, regular fuses or circuit breakers can be used,
according to IEC 60947-4-2, which will protect the installation against
short circuits, however, the SCRs will not be protected. Circuit breakers
of the table 3.8 and table 3.9.
For Coordination Type 2, the fuses to be used in the input must be for
protection of semiconductors, ultra-fast type (aR), according to IEC
60947-4-2. They reduce the risk of the SCRs to burn out because of
overcurrent transients
Model
I²t SCR
(A²s)
FNH aR
Blade Contacts
FNHFE aR
Flush End
SSW-06.0010 720 FNH00-40K-A -
SSW-06.0016 720 FNH00-40K-A -
SSW-06.0023 400 FNH00-80K-A -
SSW-06.0030 400 FNH00-125K-A -
SSW-06.0045 10000 FNH00-125K-A -
SSW-06.0060 15000 FNH00-160K-A -
SSW-06.0085 80000 FNH00-250K-A FNH3FEM-450Y-A
SSW-06.0130 84000 FNH1-400K-A FNH3FEM-450Y-A
SSW-06.0170 245000 FNH2-630K-A FNH3FEM-450Y-A
SSW-06.0205 320000 FNH2-630K-A FNH3FEM-450Y-A
SSW-06.0255 238000 FNH3-710K-A FNH3FEM-500Y-A
SSW-06.0312 238000 FNH3-710K-A FNH3FEM-550Y-A
SSW-06.0365 320000 FNH3-710K-A FNH3FEM-630Y-A
SSW-06.0412 1452000 FNH3-1000K-A FNH3FEM-700Y-A
SSW-06.0480 4250000 2 x FNH2-630K-A FNH3FEM-800Y-A
SSW-06.0604 4250000 2 x FNH2-710K-A FNH3FEM-900Y-A
SSW-06.0670 4250000 2 x FNH3-800K-A FNH3FEM-1000Y-A
SSW-06.0820 4250000 2 x FNH3-900K-A FNH3FEM-1400Y-A
SSW-06.0950 14000000 2 x FNH3-1000K-A FNH23FEA-1600Y-A
SSW-06.1100 14000000 3 x FNH2-710K-A FNH23FEA-1800Y-A
SSW-06.1400 15125000 3 x FNH3-900K-A 2 x FNH3FEM-1250Y-A
Table 3.10 - I²t of the SCR and aR Weg fuses standard connection
Model
I²t SCR
(A²s)
FNH aR
Blade Contacts
FNHFE aR
Flush End
SSW-06.0045 10000 FNH1-200K-A -
SSW-06.0060 15000 FNH1-200K-A -
SSW-06.0085 80000 FNH2-400K-A -
SSW-06.0130 84000 FNH3-500K-A -
SSW-06.0170 245000 FNH3-710K-A FNH3FEM-550Y-A
SSW-06.0205 320000 FNH3-710K-A FNH3FEM-630Y-A
SSW-06.0255 238000 2 x FNH3-400K-A FNH3FEM-700Y-A
SSW-06.0312 238000 3 x FNH2-310K-A FNH3FEM-900Y-A
SSW-06.0365 320000 2 x FNH3-500K-A FNH3FEM-1000Y-A
SSW-06.0412 1452000 2 x FNH3-710K-A FNH3FEM-1100Y-A
SSW-06.0480 4250000 2 x FNH3-1000K-A FNH3FEM-1250Y-A
SSW-06.0604 4250000 2 x FNH3-1000K-A FNH23FEA-1600Y-A
SSW-06.0670 4250000 3 x FNH3-800K-A FNH23FEA-1800Y-A
SSW-06.0820 4250000 3 x FNH3-800K-A 2 x FNH3FEM-1100Y-A
SSW-06.0950 14000000 3 x FNH3-900K-A 2 x FNH3FEM-1250Y-A
SSW-06.1100 14000000 3 x FNH3-1000K-A 2 x FNH3FEM-1400Y-A
SSW-06.1400 15125000 4 x FNH3-1000K-A 3 x FNH3FEM-1250Y-A
Table 3.11 - I²t of the SCR and aR Weg fuses delta inside motor connection
3.2.4.2 Input Circuit Breakers
and Fuses - IEC
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