Selection Guide

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Valve Assemblies with Mx40-717x Series Spring Return Actuators
Actuator Specifications
Inputs
Control Signal MA40-717x—Two wire, SPST or Triacs.
MF40-7173—SPDT floating control output, Triacs (500 mA rated), or 2 SPST
contacts.
MS40-717x—Proportional, 2 to 10 Vdc or 4 to 20 mAdc with the addition of a
500-ohm resistor (not included).
Power Requirements All 24 Vac and 22-30 Vdc circuits are Class 2.
Impedance 2 to 10 Vdc, 121 K. 4 to 20 mAdc, 500 user supplied). (MS40-717x models only)
Connections
Class 1 Power:
Class 2 Power & Control:
2 ft. (61 cm) long appliance cable, 1/2" conduit connector.
36" (91 cm) long appliance cable
Motor Type Brushless DC.
Outputs
Electrical Stroke: Rotation is electronically limited to a maximum of 92° ± 1°(MS).
MF & MA are mechanically limited to 101° ±1°.
Output torque rating:
Mx40-717x—150 lb-in (17 N-m).
Timing: Approx. 147 sec. for MS models;
162 sec. for MF and MA models.
Mechanical Position indicator: Pointer and scale are provided from 0 to 95°, provided for position
indication.
Direction of rotation: Cw or ccw rotation is available through reverse mounting.
Environment
Temperature Limits Shipping and storage: -40 to 160 °F (-40 to 71 °C) ambient.
Operating: Minimum allowable valve fluid temperature: 20 °F (-7 °C).
Maximum allowable ambient: 133 °F (56 °C) maximum ambient at
maximum valve fluid temperature.
Humidity 5 to 95% RH, non-condensing.
Locations NEMA 1 (IEC IP10), NEMA 4 (IEC IP56) with customer supplied water tight conduit
connectors.
Agency Listings (Actuator)
UL UL 873, Underwriters Laboratories (File #9429 Category Temperature-Indicating
and Regulating Equipment).
European Community EMC Directive (2004/108/EC). Low Voltage Directive (72/23/EEC).
CUL Canadian Standards C22.2 No. 24-93.
Australia This product meets requirements to bear the C-Tick Mark according to the terms
specified by the Communications Authority under the Radiocommunications Act
1992.
Part Numbers
Power Input @ 50/60 Hz
Voltage Running VA Holding VA Watts
MA40-7173
24 Vac ±20% 7.4 5.1 5.3
22-30 Vdc 5.0 3.0 5.0
MS40-7173
24 Vac ±20% 7.8 4.7 5.5
22-30 Vdc 5.6 2.5 5.0
MF40-7173
24 Vac ±20% 8.1 5.3 5.8
22-30 Vdc 5.7 3.6 5.7
MA40-7170 120 Vac ±10% 8.4 6.6 6.2
MS40-7170 120 Vac ±10% 8.5 5.2 6.4
MA40-7171 240 Vac ±10% 9.8 8.5 6.5
MS40-7171 240 Vac ±10% 10.8 9.0 7.2