Grundfos SE Installation And Operating Instructions Manual page 32

Appendix A
A.1. Wiring diagrams
A.1.1. Single cable, star-delta connection
L1 L2
1
U1
L1 L2
1
U1
12-wire, star-delta connections (Y/D): D: connections for 3 x 460 V (1G), 3 x 208 V (0S) or 3 x 230 V (1R) Y:
connections for 3 x 460 V (1R)
790
L3
2 3 4 5
W1 U2 V2
V1
L3
2 3 4 5
W1 U2 V2
V1
6
W2
6 P1 P2 P3
W2
P1
U1
P5
P2
V1
P4 P3
W2
W1
V2
U2
P4 P5
O