4
IQ 35M Meter Series
IB02601008E September 2011 www.eaton.com
ZL0073-0C
L1
N
L2 L3
X2
X1
A
B
C
N
A
B
C
X2
X1
X2
X1
+
-
+
-
+
-
White
Black
White
Black
White
Black
Diagram 5: 3-Phase 4-Wire Wye Direct
Voltage Input Connection 3 CT
USE SYSTEM TYPE 40 (3L + 1n)
White
Black
White
Black
White
Black
L1
N
L2 L3
X2
X1
A
B
C
N
A
B
C
X2
X1
X2
X1
+
-
+
-
+
-
Diagram 6: 3-Phase 4-Wire Wye
Connection 3 CT 3 PT
USE SYSTEM TYPE 40 (3L + 1n)
Direct Connect Control Power (DC)
L1
N
L2 L3
1 2
G
L1
N
L2 L3
1 2
G
L1
1 2
G
L2 L3
Direct Connect Control Power (Line to
Neutral)
Line to Neutral from 90VAC to 347VAC (UL) or 300VAC (CE)
1 2
G
Control Power Transformer (CPT)
Connection
Direct Connect Control Power (Line to
Line)
Line to Line from 90VAC to 600VAC (UL) (520 VAC CE). In UL
installations, the lines may be floating (i.e. a delta). If any
lines are tied to an earth (i.e. a corner grounded delta), see
the Line to Neutral installation limits. In CE installations,
the lines must be neutral (earth) referenced at less than
300VAC
L-N
.
The Control Power Transformer may be wired L-N or L-L.
Output to meet meter input requirements
DC Control Powerfrom 125VDC to 300VDC (UL and CE max.).
Fuse Recommendations:
Keep the fuses close to the power source (obey local and
national code requirements).
For selecting fuses and circuit breakers, use the fol-
lowing criteria:
z
Current interrupt capacity should be selected based
on the installation category and fault current capa-
bility.
z
Over-current protection should be selected with a
time delay.
z
The voltage rating should be sufficient for the input
voltage applied.
z
Provide overcurrent protection and disconnecting
means to protect the Wiring. For DC installations,
the installer must provide external circuit protection
(suggested: 0.5A, time delay fuses).
z
The earth connection is required for electromagnetic
compatibility (EMC) and is not a protective earth
ground.
Wiring Notes:
z
Use 14-24 gauge wire for all connections.
z
When tightening terminals, ensure that the correct
torque is applied: 3.5 - 4.4 in·lb (0.4-0.5 N·m).
Wiring Diagrams
N L1
X2
X1
White
Black
A
B
C
N
+
-
+
-
+
-
A
B
C
Diagram 1: 1-Phase Line-to-Neutral
2- Wire System 1 CT
Diagram 2: 1-Phase Line-to-Line 2-Wire
System 1 CT
L1 L2
X2
X1
X2
X1
A
B
C
N
+
-
+
-
+
-
A
B
C
N
White
Black
White
Black
L1 L2
X2
X1
A
B
C
N
+
-
+
-
+
-
A
B
C
White
Black
Diagram 3: 1-Phase Direct Voltage
Connection 2 CT
L1 L2 L3
X2
X1
A
B
C
N
A
B
C
X2
X1
X2
X1
+
-
+
-
+
-
White
Black
White
Black
White
Black
Diagram 4: 3-Phase 3-Wire 3 CT no PT
USE SYSTEM TYPE 11 (2L)
USE SYSTEM TYPE 12 (2L + 1n)
USE SYSTEM TYPE 31 (3L)
USE SYSTEM TYPE 10 (1L + 1n)
Warning: CT negative terminals are refer-
enced to the meter’s neutral (N) and may be
elevated from ground.
For IQ 35MA1x models, CTs are not polarity sensitive. No need to observe orientation.
For IQ 35MA2x models, CTs are polarity sensitive. Observe correct orientation as shown below.
Control Power
