MODEL: 53U
TERMINAL CONNECTIONS
For UL approved model, L and N are marked, instead of U(+) and V(-).
Input
V1 V2 V3
N
1S 1L 2S 2L 3S 3L
System /
Application
Terminal
V1 V2 V3 1S 1L 3S 3L
V1 V2 V3 1S 1L 3S 3L
k
l
source
L1
load
source
load
L1
L2
L3
K
L
k
l
CONFIG
L2
+
+
– T1T2T3T4
U V
(+) (–)
–
Three phase /
3-wire,
L3
K
L
Configurator Jack
unbalanced load
DO/PO DI
V1 V2 V3 1S 1L 3S 3L
u
v
v
u
k
l
Auxiliary Power External Interface
Supply
source
L1
load
U
V
V
U
K
L
k
l
L2
L3
System /
Application
K
L
Terminal
V1
N
1S 1L
V1
N
1S 1L
V1
N
1S 1L
V1
N
1S 1L
k
l
k
l
source
L1
load
source
load
load
load
source
L1
load
source
L1
load
L1
N
K
L
K
L
N
L2
L3
N
L2
L3
N
Single phase /
2-wire
Three phase /
4-wire,
balanced load
V1
N
1S 1L
V1
u
N
1S 1L
u
v
v
k
l
source
L1
U
V
load
k
l
source
L1
U
V
load
K
L
K
L
N
L2
L3
N
V1 V2 V3 1S 1L
V1 V2 V3 1S 1L
V1 V2 V3
V1 V2 V3
V1 V2 V3
N 1S 1L 2S 2L 3S 3L
k
l
source
L1
load
source
L1
K
L
L2
L3
L2
L3
Three phase /
3-wire,
balanced load
source
L1
load
L2
L3
N
V1 V2 V3 1S 1L
u
v
v
u
k
l
source
L1
load
U
V
V
U
N
1S 1L 2S 2L 3S 3L
K
L
L2
L3
Three phase /
4-wire,
k
l
source
L1
load
k
l
V1
N
V2 1S 1L 2S 2L
V1
N
V2 1S 1L 2S 2L
unbalanced load
K
L
k
l
L2
L3
N
K
L
K
L
k
l
source
L1
load
source
L1
K
L
k
l
N
N
N
1S 1L 2S 2L 3S 3L
L2
L2
Single phase /
3-wire
K
L
u
v
u
v
u
v
V1
N V2 1S 1L 2S 2L
k
l
source
L1
load
U
V
U
V
U
V
k
l
K
L
k
l
u
v
v
u
L2
L3
N
K
L
k
l
source
L1
load
U
V
V
U
K
L
K
L
k
l
N
L2
K
L
Note: For low voltage circuit, grounding is not required.
53U SPECIFICATIONS
ES-6485 Rev.26 Page 5/9
https://www.m-system.co.jp/