The SR & SX series NEMA 4 and/or 7 rotary electric actuator was designed solely for applications within the 200 lb × in (model SR) and 300 lb × in (model SX) torque range used in hazardous locations. These heavy-duty reversing actuators can be used in place of model SD and SDX when the area requires enclosure rating of Class I Groups C & D or Class II Groups E, F & G div. I and II. They can also be used when optional equipment such as 4-20mA control, timers and speed control are required. These compact actuators are equipped with spur gear drive and, as in all
Standard equipment includes
|Output Torque||200 Lb-In (22.6 Nm) & 300 Lb-In (33.9 Nm)|
|Cycle Time:||5 sec/90° rotation|
12Vdc, 24Vdc, 24Vac (24Vdc rectified) with manual reset (turn off then back on) overload protection. 230Vac-50/60Hz-1Ph.with automatic reset thermal overload protection and spring friction brake.
|Lock Rotor Current||115Vac. = .75 Amps., SX – 1.0 Amps.
230Vac. = .38 Amps.
12Vdc. = 4.0 Amps.
24Vdc. = 3.2 Amps.
24Vac. = 3.2 Amps.
NEMA 4 and/or 7
Die-cast aluminum with 300 series stainless steel captured screws and thermally bonded polyester powder coating.
NEMA 4X and 4X & 7 Sand-cast aluminum with 300 series stainless steel screws and manual override shaft and thermally bonded polyester powder coating.
|Mounting:||Universal, ISO 5211 F05 mounting pad|
|Manual Override:||Available upon request (not CSA certified)|
|Temperature:||-40° F to +140° F (heater required at 0 F. and below).|
|Switches:||16 A. 125/250VAC|
|Certification:||CSA NEMA 7|
Extended duty (75%) motor (cycle time = 10 sec./90 ° ), maximum of 4 auxiliary switches, power off brake, declutching manual override with hand wheel, feedback potentiometer, 4-20mA positioner (equipped with 24vdc power supply for transmitter), 4-20mA position transmitter (requires 24Vdc power supply), compartment heater, heater and thermostat, breather, three position control, light indication, two wire control, timer, speed control, remote/off/local control panel, electronic torque sensor and one additional ½” NPT conduit entry.