4 LG_D00393_00_Q_XXEN / 05.2019
LifeGuard® Series
• All active conductors, including the neutral, must be brought into the device through the
current transformer and connected to the line side of the contactor.
• All active conductors are then brought out from the load side of the contactor to the load
/ remaining branch of the protected circuit.
• Connect the line and load ground wires to the ground lug on the backplate. Do not route
the ground wire through the current transformer.
Voltage Conductors (NOT including ground) Referenced Wiring Diagram
120 VAC 1ph / 2w (L1, N) Figure W1
208 VAC 3ph / 3w (L1, L2, L3) Figure W2
208/120 VAC 3ph / 4w (L1, L2, L3, N) Figure W3
240/120 VAC 1ph / 3w (L1, L2, N) Figure W4
277 VAC 1ph / 2w (L1, N) Figure W1
480 VAC 3ph / 3w (L1, L2, L3) Figure W2
480/277 VAC 3ph / 4w (L1, L2, L3, N) Figure W3
600 VAC 3ph / 3w (L1, L2, L3) Figure W2
600/347 VAC 3ph / 4w (L1, L2, L3, N) Figure W3
Figure W1 -
Single-Phase, Two-Wire
Congurations (L1, N)
7L4
5L3
3L2
1L1
8T4
6T3
4T2
2T1
L1
L2
L3
N
Line
Load
GND
Note 1
N
GND
CT
Figure W2 -
Three-Phase, Three-Wire
Congurations (L1, L2, L3)
7L4
5L3
3L2
1L1
8T4
6T3
4T2
2T1
L1
L2
L3
N
Line
Load
GND
Note 1
Note 2
L1
L3
L2
GND
CT