Bernard

Bernard AQX Actuator

1. Compact & Modular Design

• Designed for installations with limited space
• Lightweight and compact body
• Modular structure allows flexible configuration

2. Quarter-Turn Operation

• Suitable for butterfly, ball, plug valves, and dampers
• Torque range up to 5310 in-lbs (depending on model)
• ISO 5211 flange mounting for easy integration

3. Versatile Control Modes

• Supports On/Off, Inching, and Modulating modes
• Fieldbus communication options (e.g., Modbus, Profibus)
• Optional INTELLI+® integrated control unit for advanced automation

4. Protection & Durability

• Standard IP67 protection, optional IP68 for immersion
• Corrosion-resistant coating for industrial environments
• Operating temperature range: -20°C to +70°C (varies by options)

5. Feedback & Diagnostics

• Non-intrusive local interface with LED indicators (depending on model)
• Position feedback and torque sensing options
• Built-in fault diagnostics with INTELLI+® version

6. Power Supply

• Compatible with AC and DC voltages (e.g., 230V, 400V, 24VDC)
• Low power consumption design

7. Safety & Manual Override

• Manual handwheel for emergency operation
• Mechanical travel stops and torque limiters included

8. Application Suitability

• Designed for general industrial use (water treatment, HVAC, energy, etc.)
• Easily integrates into automated systems

Technical Specifications

1. General Specifications:

• Torque Range: 40 Nm and 70 Nm.​
• Duty Classification:
  • On-Off: Class A actuators complying with EN15714-2.​
  • Inching/Positioning: Class B actuators complying with EN15714-2.​

2. Enclosure & Protection:

• Casing: Aluminum die-casting with a cover fastened by captive stainless steel screws.​
• External Protection:
  • Polyester powder coating as standard.​ 
  • Protection level: C4 according to ISO 12944; C5 protection available as an option.​
• Weatherproofness: IP68 / NEMA 4X as standard; relative humidity: 0 to 95%.​
• Explosion-proof Certifications:
  • IECEx / ATEX IIB T6, db IIB T6 Gb.​
  • NEC500, NEMA 7 Class I div 1 group C & D, Class II group E, F, and G. T6.​
• Ambient Temperature Range:
  • Standard: -20°C to +60°C (-4°F to +140°F).​
  • Low-temperature option: down to -40°C (-40°F).​

3. Motor:

• Technology: 24VDC brushed motors with 2-wire connection to the control boards.​
• Duty Rating:
  • On/Off operation (Class A):  S4-30% motor duty rating.​
  • Inching/Positioning (Class B):  S4-50% motor duty rating.​
  • Up to 120 starts per hour at  peak operation.​

4. Mechanical Specifications:

• Gear Design: Mechanically self-locking.​
• Manual Emergency Operation: Via manual hexagonal output (10mm).​ 
• Output Flange: Complies with ISO 5211, F05/F07.​
• Lubrication: Lubricated for the product's lifetime; no special service required.​

5. Electrical Specifications:

• Power Supply:
  • Operates on a wide range of single-phase power supplies: 85VAC to 260VAC, and 24VDC.​
  • 12VDC single power supply available on request.​
• Terminal Compartment: Push-in type terminals for controls and power supply; internal and external earth grounding posts.​
• Conduit Entries: 2 x 3/4 NPT as standard.​

6. Position Sensors:

• Travel Limit Systems:
  • Limit switches actuated by adjustable camblock (not available on multi-turn versions).​
  • 2 SPDT switches as standard (Open and Close) + 2 auxiliary switches (customer feedback); 250VAC-5A/48VDC-2.5A (resistive load).​
• Inching/Positioning Control:
  • Position feedback: 4-20mA output.​
  • Positioner: 4-20mA input/output.​

7. Settings & Compliance:

• Mobile Application: Bernard Controls offers a mobile application for easy access to documentation and assistance.​
• Compliance with EC Directives:
  • Electromagnetic compatibility (2004/108/EC).​
  • Low voltage (2006/95/EC).​
  • Harmonized standards: EN61000-6-4, EN61000-6-2, EN60034-1, EN60529.​