Eaton DS7 - Page 144

7 Connection examples
7.3 Size 3 and 4 (41 – 200 A)
140 DS7 Soft starter 09/16 MN03901001Z-EN www.eaton.com
Q1 = Cable and motor protection
Q11 = Mains contactor
Q21 = Soft starter
Q31 = Motor contactor
Q22 = Bypass contactor/Emergency operation protection
F2 = superfast semiconductor fuse for type of coordination
2 (optional), in addition to Q1
M1 = Motor
Figure 110: Power section with bypass emergency operation –
(pump operation)
￫
The control system shown here can also be used for the DS7
soft starters in size 2 (16 - 32 A).
M1
F3
L1
L2
L3
PE
3L2
Q1
Q11
Q31
Q22
1
L
1
3
L5
E
P
E
P
1T2
Q21
4T2 6T3
I > I >I >
M
3 ~