Electric Actuators

Electric Actuator J3C

Tuning's range of electric actuators, available in both "L" and "H" series, is a revolution in electric actuation. Designed and manufactured in Europe, it is a new breed of reversible electric actuators that are pioneering new innovations in the industry.

These actuators are all single phase reversible rotary electric resistant housing and ISO 5211/DIN3337 mounting.


AVS : Auto voltage sensing - accepts a range of AC or DC voltages - Series "L" accept 12 to 48V AC or DC - Series "H" accept 80 to 240 V AC or DC.

ETL : Electronic torque limiter - Continuously monitors and controls the motor, producing smooth operation and accurate control over the maximum allowed torque, should the torque requirement exceed this, the ETL system will automatically cut the power to the motor, preventing possible internal damage. ETL also provides automatic relaxing of the actuator's gear box to facilitate simple operation of manual override. An internal visible LED provides indication on ETL's status :

An internal visible LED provides indication on ETL's status :

- A continuously lit led means normal actuator operation

- a flashing led indicates ETL has activated and cut the power of the motor.

ATC : Automatic temperature Control - A 4 W anti-condensation heater is thermostatically controlled to maintain the actuator's internal between 30 and 40°C (86° and 104°F)

PES : Protected electrical supply - Accepts the same wiring connection for AC or DC. Incorrect electrical connection will not damage the actuator internals. All external plugs eliminate the need to remove the actuator cover to connect. Please, see the wiring diagram outside the actuator.

MO : Manual override - For emergency use, with automatic motor power tripping when selected.

VFC : Volt Free contacts - One set of open and closed volt free contacts are provided. (i.e for remote position indication)

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How it works : On receipt of a continuous power signal, the motor runs and via a flat gearbox system, rotates the output shaft. The motor is stopped by internal cams fitted to the output striking micro switches, which cut the power to the motor. When a subsequent continuous signal is received, the motor will turn in the opposite direction, reversing the rotation of the output drive.