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■ INPUT WIRING
System /
Application
P1 P2
1K 1L
Single-phase /
2-wire
source
k
L1
K
N
P1 P2 P3 1K 1L
Three-phase /
3-wire,
k
source
L1
balanced load
K
L2
L3
P1
source
L1
L2
L3
Three-phase /
N
4-wire,
unbalanced load
P1
u v
source
U V
L1
L2
L3
N
Caution: Use CLSE for CT.
Grounding is unnecessary for low-voltage circuit.
WIRING INSTRUCTIONS
■ SCREW TERMINAL
Torque: 0.5 N·m
■ SOLDERLESS TERMINAL
Refer to the drawing below for recommended ring tongue
terminal size. Spade tongue type is also applicable.
Applicable wire size: 0.25 to 1.65 mm
Recommended manufacturer: Japan Solderless Terminal
MFG. Co., Ltd, Nichifu Co., Ltd
3.3 (.13) max
Terminal
P1 P2
1K 1L
u
v
l
load
source
k
U
V
L1
L
K
N
P1 P2 P3 1K 1L
u
v
v
u
l
k
load
source
U
V
V
U
L1
L
K
L2
L3
P2
P3
N
1K 1L
2K 2L
3K 3L
k
l
load
k
l
K
L
k
l
K
L
K
L
P2
P3
N
1K 1L
2K 2L
3K 3L
u v
u v
k
l
load
U V
U V
k
l
k
l
K
L
K
L
K
L
(AWG 22 to 16)
2
mm (inch)
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: info@m-system.co.jp
System /
Application
Single-phase /
P1 P2 P3 1K 1L 3K 3L
3-wire
Three-phase /
source
3-wire
l
load
L1
unbalanced load
N / L2
L
L3
(2CT)
P1 N
Three-phase /
4-wire,
source
l
load
L1
balanced load
L
L2
L3
N
R7EWTU
Terminal
P1 P2 P3 1K 1L 3K 3L
u
v
v
u
k
l
load
source
k
U
V
V
U
L1
K
L k
l
K
N / L2
L3
K
L
1K 1L
P1 N
1K 1L
u
v
k
l
k
load
source
U
V
L1
K
L
K
L2
L3
N
EM-7818 Rev.2 P. 5 / 18
l
load
L k
l
K
L
l
load
L
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