Model ES2 is a light duty actuator designed for fail-safe applications. For best life expectancy it is recommended that model ES2 be powered in both clockwise (CW) and counter clockwise (CCW) directions. If used in this manner one can expect over 2,000 open/close cycles. When allowed to spring to the fail position as the normal model of operation, the life of the actuator is severely shortened. ES2 has a spring end torque of 200 in-lb with a closing speed of 3 sec./90° upon loss of power. This actuator is ideally suited for ball valves and dampers with torque ratings of up to 145 in-lb.
Standard equipment includes 115Vac-1ph 25% duty cycle motor with thermal overload protection, set to fail closed (CW rotation) upon loss of power, two limit switches, power on brake, stainless steel fasteners, 300 series stainless steel output drive, polyester powder coating.
|Output Torque:||200 Lb-In (22.6 Nm)|
|Cycle Time:||10 sec/90° rotation model ES2|
|Duty Cycle:||10% model ES2|
|Mode of Operation:||Power open and close, spring to function only upon loss of main power supply.|
|OPTIONAL VOLTAGES:||230Vac-50/60Hz-1Ph.with thermal overload protection.|
|Lock Rotor Current:||115Vac. = .75 Amps.
230Vac. = .38 Amps.
|Enclosure:||NEMA 4 Standard
Sand-cast aluminum with 300 series stainless steel fasteners and thermally bonded polyester powder coating.
NEMA 4X & NEMA 7
|Output Drive:||ISO 5211 F07 (17mm female star) model ES2|
|Mounting:||Universal, ISO 5211 F07|
|Manual Over Ride:||Consult factory|
|Temperature:||-40° F to +140° F (heater required at 0° F. and below).|
|Switches:||16 A. 125/250VAC|
|AVAILABLE OPTIONS:||Extended duty (75% model ES2) motor, maximum of 4 auxiliary switches, declutching manual over ride with hand wheel, NEMA 7 enclosure, feedback potentiometer, 4-20mA position transmitter (requires 24Vdc power supply), compartment heater, heater and thermostat, breather, light indication, two wire control, remote/off/local control panel, and one additional conduit entry.|