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6 © Copyright 2010 Schneider Electric All Rights Reserved. F-26748-6
MS40-7173
Red
Black
24H (DC+)
24G (DC-)
24 Vac Transformer
or 22-30 Vdc
GRDGreen/Yellow
4 to 20 mA
Yellow/Black
Gray
AI
COM
+
-
500 Ohm
1
Position Feedback (-)
Signal 2 to 10 Vdc (+)
Blue AO
Control
Signal
1 Unused conduit port must remain plugged with a water
tight pipe plug as shipped from factory to maintain
NEMA Type 4 or IP56 rating.
2 Color coding of wiring on older models (MX40-717x-0-
0-0) manufactured prior to December, 2007, differs
from current models. See Table 4 on page 14. Consult
label on product to confirm wiring codes.
3 Keep AI, COM and AO wiring less than 30 meters
length to meet CE requirements.
2
3
Figure-6 Typical MS40-7173 4 to 20 mA Wiring Diagram.
2 to 10 Vdc
Control
Signal
GRD
MS40-717X
Power
GRD
1
1
2
MS40-717X
1 Unused conduit port must remain plugged with a
water tight pipe plug as shipped from factory to
maintain NEMA Type 4 or IP56 rating.
2 See table for power wire designations.
3 Both actuators must be set to operate in the same
direction.
3
3
(+)
(-)
Yellow/Black
AI
Gray COM
Blue
AO
Yellow/Black
AI
Gray COM
Blue
AO
Position Feedback (-)
Signal 2 to 10 Vdc (+)
4 Color coding of wiring on older models (MX40-717x-0-
0-0) manufactured prior to December, 2007, differs
from current models. See Table 4 on page 14. Consult
label on product to confirm wiring codes.
5 Keep AI, COM and AO wiring less than 30 meters
length to meed CE requirements.
4
4
5
5
Green/Yellow
Green/Yellow
Power Wiring Identification.
Voltage Designation Wire Color
24 Vac or
22-30 Vdc
24H (DC+) Red
24G (DC-) Black
120 Vac
L1 Black
L2 White
240 Vac
L1 Brown
L2 Light Blue
Figure-7 Two Actuators on the Same Damper Shaft.