The J4C 20 is a multi-voltage quarter-turn electric actuator manufactured by the Spanish company J.J. BCN Internacional, S.A.. It is primarily engineered for the automated opening and closing of industrial quarter-turn valves, such as ball and butterfly valves.
Key Technical Specifications:
Working Torque 20 Nm
Maximum (Starting) Torque 25 Nm
Operating Voltage (S Version)24–240 VDC/VAC (50/60 Hz)
Operating Voltage (B Version)12 VDC/VAC
Operating Time9 seconds for a 90° rotation
Duty Rating 75% Enclosure
ProtectionIP67 weatherproof
Working Temperature-20°C to +70°C
Core Features:
Brushless Motor Technology: Offers higher efficiency, less wear, and a longer life span compared to older brushed models.
Electronic Torque Limiter: Automatically cuts power to the motor and steps back slightly if it detects an obstruction, protecting both the valve and the actuator mechanism.
Automatic Condensation Heater: Features an internal 3.5W thermostat-controlled heater that stays active as long as the device is supplied with voltage, keeping the interior temperature above 20°C to prevent moisture buildup.
Manual Override: A declutchable emergency hand wheel or lever allows operators to manually position the valve during power failures.
Position Feedback: Built-in with 2 motor-stop microswitches and 2 additional voltage-free auxiliary microswitches for remote open/close position confirmation
Upgrade & Automation Kits:
The J4C 20 framework supports several plug-and-play internal modifications outlined:
DPS (Digital Positioner System): Converts the standard On/Off actuator into a modulating unit accepting 4–20mA or 0–10V control signals.
BSR (Battery System Return): An emergency safety fail-safe battery pack that forces the valve to close or open automatically if main power is lost.
Communication Options: Can be equipped with Modbus or Bluetooth industrial plug-in modules for wireless diagnostics and networking.
Dimensions (mm):
Typical application:
