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POWER CIRCUITS
6.8
Fuse Selection for Type 2 Coordination
Type 2 coordination is achieved by using semiconductor fuses. These fuses must be able to carry motor start current and have a total
clearing I
t less than the I
t of the soft starter SCRs.
2
2
When selecting semiconductor fuses for EMX3, use the I
For further information on selecting semiconductor fuses, contact your local distributor.
I
t values for Type 2 coordination
2
EMX3-0023B
EMX3-0043B
EMX3-0050B
EMX3-0053B
EMX3-0076B
EMX3-0097B
EMX3-0100B
EMX3-0105B
EMX3-0145B
EMX3-0170B
EMX3-0200B
EMX3-0220B
EMX3-0255B
EMX3-0350B
EMX3-0425B
EMX3-0500B
EMX3-0580B
EMX3-0700B
EMX3-0820B
EMX3-0920B
EMX3-1000B
EMX3-0255C
EMX3-0360C
EMX3-0380C
EMX3-0430C
EMX3-0620C
EMX3-0650C
EMX3-0790C
EMX3-0930C
EMX3-1200C
EMX3-1410C
EMX3-1600C
22
| User Manual (710-04840-00M)
t values in the table.
2
Model
SCR I
t (A
s)
2
2
1150
8000
10500
15000
51200
80000
125000
320000
202000
320000
781000
1200000
2530000
320000
1200000
2530000
4500000
6480000
12500000
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