Q-Series Electric Actuator

• Efficient transmission design with self-locking capability

• Adjustable cam for easy valve position setting

• Dual anti-condensation design

• Modular design for easy maintenance

• High protection rating:

  • IP67 standard

  • IP68 optional

• High explosion-proof ratings (optional):

  • Q1, Q2, Q3, Q5 – Ex d IIB T4 Gb / Ex db IIC T4 Gb

  • Q5, Q5S – Ex db IIC T4 Gb / Ex db IIC T6 Gb

• Independent electrical control unit with multi-channel protection

• High control accuracy: up to 1%

Torque Range

• 50 Nm – 10,000 Nm

Power Supply (Optional)

• Three-phase:

  • AC380V, AC415V, AC440V (±10%), 50/60Hz

• Single-phase:

  • AC110V, AC220V (±10%), 50/60Hz

• DC:

  • 24V DC

Environmental Conditions

• Ambient temperature: -25°C to +70°C

• Relative humidity: ≤ 90% (at 25°C)

• Must be free of strong corrosive media

• No severe vibration conditions

Protection

• IP67 (standard)

• IP68 (optional)

Control

• ON/OFF control

• Modulating control available

Duty Cycle

• ON/OFF: ≤ 30 minutes

• Modulating: S4 – 40%

Deadband

• Adjustable: 0.5% – 9%

Fail-Safe Options

• Hold

• Fully Closed

• Fully Open

Intelligent Type Features

• Multilingual display menu

• Real-time display:

  • Valve position

  • Alarm information

  • Operating status

• Absolute encoder (no dead band, higher accuracy)

• Non-intrusive setup (no need to open housing)

• Automatic protections:

  • Phase sequence detection

  • Phase loss

  • Over-temperature

  • Overload

  • ESD function

• Flexible control modes:

  • Passive contact

  • Two-wire control

  • External voltage input

• Enhanced sealing (non-penetrating buttons)

• Programmable relay outputs for DCS monitoring

• Optical isolation (up to 2000V surge protection)

Trewfit Q-Series Catalogue