User Guide
Schneider Electric    1354 Cliffo rd Ave. Loves Park, IL 61111    1-888 - 44 4 -1311    w ww.schneider-electric.co m / buildings
F-27599-4   March 2011 co
© 2011 Schneider Electric. All rights reserved.
Globe Valve Actuators & Assemblies
Forta
2
SPECIFICATIONS CONTINUED
Stroke
M800, M1500
U-Bolt style: >3/8” to 2” (9-52mm) 
M800-VB, M1500 VB
Screw Mount Style >3/8” to 1 7/8” (9-48mm) 
M400, M400-VB
U-Bolt and Screw Mount Style >3/8” to 1 1/4” (9-48mm) 
Stroke Timing
Floating: 60 or 300 sec selectable, Proportional: 15 sec @1/2” stroke
Feedback AO
2 to 10 Vdc
Power Supply Type
Half Wave
Motor Type
Brushless DC
Enclosure
NEMA 2 (IP 54, vertical mount only) with both conduit connectors used. NEMA 1 IP40 with one connector used.
Sound Power Level
Maximum 32 dba
Ambient Temperature Storage
-13 °F to 149 °F (-25 to 65 °C) ambient 
Ambient Temperature
Operational 
122 °F (50 °C) For chilled water applications
113 °F (45°C) ambient at 281 °F (138°C)  uid temperature
107 °F (42 °C) ambient at 300 °F (149 °C)  uid temperature
100 °F (38 °C) ambient at 340 °F (171°C)  uid temperature
90°F (32°C) ambient at 366 °F (186 °C)  uid temperature
Minimum Operating Temperature
14 ° to 150 ° F (-10 ° to 50 ° C)
Ambient Humidity
15 to 95 % RH non-condensing
Housing Material
Die-Cast Aluminum
MOUNTING
DIMENSIONS
 6.38”
(132 mm)
 3” *
(79 mm)
 6.31”
(173 mm)
 9.53”
(242 mm)
 4.60”
(117 mm)
 3.235”
 (82 mm)
The actuator may be mounted
horizontally, vertically and in any posi-
tion in between, but not upside down, 
Please note that to maintain NEMA 
2 (IP54) rating the actuator must be 
mounted vertical.
Tall U-Bolt Style
Screw Mount
*3” (76mm) clearance above actuator recommended 
to remove actuator










