The Bernard Controls STX40 Electric Actuator is a high-performance, explosion-proof solution engineered for reliable valve automation in hazardous industrial environments. With a 2.2kW motor, 3-phase 400V power supply, and rigorous explosion-proof certification, it delivers robust performance while ensuring maximum safety in critical applications.
Safety Certifications & Environmental Protection
Certified to IECEx and ATEX standards
Qualified for gas (Zone 1 & 2, up to IIC) and dust (Zone 21 & 22, up to IIIC) hazardous areas
IP68 protection (10m/96h) and C5 corrosion resistance
Operating temperature range: -30°C to +70°C (optional low temperature -55°C)
Advanced Control System
Enhanced Intelli+® V3 control system
Namur NE 107 signaling and emergency shutdown
Partial stroke test capability
Precise speed control and self-learning algorithm for optimized positioning
Built-in data logger records 50 alarms and 15 days of environmental parameters
Motor & Control Capabilities
The 2.2kW 3-phase motor provides strong torque and stable operation, compatible with on-off, positioning, and modulating control (Class A+, B+, III) to meet diverse process requirements.
Integration & Communication
Supports multiple fieldbus interfaces including Modbus, Profibus, and HART for seamless integration with industrial control systems.
Applications
Ideal for petrochemical, natural gas, and other high-risk industries where reliability and explosion protection are non-negotiable.
Customization
Multiple models available that can be customized according to user parameters.