The J4C 35 is a multi-voltage, quarter-turn electric actuator manufactured by the Spanish company J.J. BCN Internacional, S.A. It is designed primarily to automate the opening and closing of industrial quarter-turn valves, such as ball valves and butterfly valves.
Key Technical Specifications:
Operating torque: 35 Nm
Maximum torque (breakaway): 38 Nm
Operating voltage (S Version): 24–240 VDC/VAC (50/60 Hz)
Operating voltage (B Version): 12 VDC/VAC
Operating time: 10 seconds for a 90° rotation cycle
Duty rating: 75%
Enclosure protection rating: IP67 (weather-resistant)
Operating temperature: -20°C to +70°C
Key Features:
Brushless Motor Technology: Delivers higher efficiency, minimizes wear, and extends service life compared to traditional brushed motors.
Electronic Torque Limiter: Automatically cuts power to the motor and reverses slightly upon detecting an obstruction, protecting both the valve and the actuator mechanism.
Automatic Anti-Condensation Heater: Features an integrated 3.5W heater controlled by a thermal relay; it operates continuously when the unit is powered, maintaining an internal temperature above 20°C to prevent moisture buildup.
Manual Operation Mode: Includes a handwheel or emergency lever with a clutch disengagement mechanism, allowing operators to manually adjust the valve position during a power failure.
Position feedback: Features two integrated limit switches (microswitches) to stop the motor and two additional auxiliary switches (voltage-free) for remote open/closed position confirmation.
Upgrade & automation kits:
The J4C 35 series design supports various internal "plug-and-play" upgrade options, including:
DPS (Digital Positioning System): Converts the standard On/Off actuator into a modulating unit capable of accepting 4–20mA or 0–10V control signals.
BSR (Battery Safety Return System): An emergency battery backup system that automatically closes or opens the valve upon loss of main power.
Communication options: Can be fitted with plug-in industrial modules supporting Modbus or Bluetooth for diagnostics and wireless connectivity.
Dimensions (mm):
Typical application:
