VALVCON™
ESR-Series electronic spring-return electric actuator
Electronic spring-return drives to fail position upon loss of power

The VALVCON ESR-Series electric actuator provides an internal bank of super-capacitor power storage devices that never need replacement. Designed for two-position operation, it provides true two-wire control: When the actuator is energized it drives to one position; when de-energized the actuator powers itself to the other position.
Features
Compact and lightweight
Internal energy storage provides power to “safe” position during power outages
Field-settable to “fail-clockwise” or “fail-counterclockwise”
High standard duty cycle
True “two-wire”operation
Internal capacitors are rated for a minimum of 100,000 cycles
Common use cases
Two-wire applications
On/Off service
Fail “safe” applications
Applicable industries
Specifications
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SERIES | ESR |
TORQUE TORQUE | 17-68 Nm, 150-600 lb-in, 12-50 lb-ft |
DUTY CYCLE | 80% |
OPERATION | Reversing |
ENCLOSURE | NEMA 4/4X or NEMA 4/4X/7&9 |
TEMPERATURE RANGE*) | 0°C to 55°C / 32°F to 130°F |
VOLTAGE | 115VAC, 230VAC |
| *) -40°C to 55°C / -40°F to 130°F with optional heater and thermostat |