Page 959 - ABB_Motor _Protection_and_Control_catalogue_20221216

ABB MOTOR PROTECTION AND CONTROL 13/69

—

Star-delta starters protected by overload relays
With AF contactors - Open type version in kit form
Wiring diagrams with CT-ERS.21S timer

Star-delta starters

Power circuit AC or DC local control with CT-ERS.21S timer

KM3:5/L3
Us
A
RESET 95
M
STOP 96 FR1
1/L1 3/L2 5/L3 1/L1 3/L2 5/L3 1/L1 3/L2 5/L3
A1 A1 A1
KM1 KM3 KM2
A2 A2 A2 .3
2/T1 4/T2 6/T3 2/T1 4/T2 6/T3 2/T1 4/T2 6/T3 KM1 I
.4
A
RESET KM2 .3
M 95 97 15 A1
FR1 .4 KT1 CT-ERS.21S
TEST 96 98 16 A2 With VM
STOP 2/T1 4/T2 6/T3 With
VEM4 01 01 KM2 21 KM3 21
(2) (2)
22 22
W1 W2 A1 A1 A1
V1 V2 KM1 A2 KM3 A2 (1) A2 KM2 KM3 A2 A2 KM2
U1 U2

Us
N
W1 W2 KM3:3/L2
V1 V2 L ∆ (3) Y
U1 U2

AC or DC remote control with CT-ERS.21S timer
KM3:5/L3
Us
A
RESET 95
M
STOP 96 FR1
0
.3
KM1 I
.4
.3
KM2 15 A1
.4 CT-ERS.21S
KT1
16 A2 With VM
With
VEM4 01 01 21 21
(2) (2) KM2 KM3
22 22
A1 A1 A1
KM1 KM3 KM2 KM3 KM2
A2 A2 (1) A2 A2 A2
13

Us
N

KM3:3/L2
L ∆ (3) Y
Note: - VEM4 = VM4 (1) + VE4 (2) with A2-A2 (3) connection
(Except for coil Uc 12-20 V DC : use VM4 with CA4).
- coil Uc 12-20 V DC : A1+, A2-