Build Your Own Actuator

Model ES2 Electric Actuator

Model ES2 Electric Actuator

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.


Print Specifications
Output Torque: 200 Lb-In (22.6 Nm)
Motor 115Vac-50/60Hz-1Ph.
Cycle Time: 10 sec/90° rotation model ES2
Duty Cycle: 25% 
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.
Output Drive: ISO 5211 F07 (17mm female star) model ES2
Mounting: Universal, ISO 5211 F07
Manual Over Ride: Consult factory
Lubrication: Permanent
Temperature: -40° F to +140° F (heater required at 0° F. and below).
Weight: 15 Lbs.
Switches: 16 A. 125/250VAC
AVAILABLE OPTIONS: Maximum of 4 auxiliary switches, declutching manual override gearbox with handwheel, NEMA 4X and/or 7 enclosure, compartment heater, heater and thermostat and breather