Fire & smoke damper actuators

Fire & smoke damper actuators

 NENUTEC fire and smoke damper actuators are designed to enhance fire safety in HVAC systems, ensuring quick and reliable response in case of a fire emergency. These actuators are essential for controlling smoke and fire dampers, preventing the spread of flames, smoke, and toxic gases to other rooms or building areas.


There are two types of fire and smoke damper actuators available:


  • Actuators with a spring return function – When a fire occurs, a thermal sensor activates, and the actuator automatically closes the damper to contain the fire and smoke. This ensures fail-safe operation even if the power supply is lost.
  • Actuators without a spring return function – These actuators motorize the damper under normal conditions and require power to operate. They offer controlled movement but depend on an external power source for activation.



NENUTEC’s fire and smoke damper actuators provide reliable protection, meeting strict safety regulations for commercial, industrial, and residential buildings. If you need assistance in choosing the right fire safety actuator, contact us today, and our team will help you find the best solution for your system!

SPRING RETURN FIRE & SMOKE DAMPER ACTUATORS

SPRING RETURN FIRE & SMOKE DAMPER ACTUATORS

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NON - SPRING RETURN FIRE & SMOKE DAMPER ACTUATORS

NON - SPRING RETURN FIRE & SMOKE DAMPER ACTUATORS

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Spring return fire & smoke damper actuators

The SAFA series fire and smoke spring return damper actuators are specifically designed to provide enhanced fire and smoke protection in HVAC systems. These actuators play a critical role in fire safety, ensuring that fire dampers close automatically to prevent the spread of flames, smoke, and toxic gases in case of an emergency.

During normal operation, the actuator positions the damper according to the control signal, allowing for precise airflow regulation. However, in the event of a power failure or fire emergency, the built-in spring return mechanism ensures that the damper returns to its original fail-safe position. This action is triggered when power is lost or when a thermal sensor detects high temperatures, providing a quick and automatic response to dangerous situations.


Features:

  • Fail-safe operation: Automatically returns the damper to a closed position in case of a power outage or fire detection.
  • Torque options: 3 – 20 Nm, suitable for different damper sizes.
  • Power supply: 230 VAC or 24 VAC/VDC, offering flexibility for various installations.
  • Running time: 25 – 75 seconds, ensuring smooth and controlled movement.
  • Built-in auxiliary switches: 2 fixed SPDT auxiliary switches for enhanced system monitoring and connectivity.


The SAFA series actuators are designed to meet fire safety regulations, making them an essential component in commercial, industrial, and residential buildings where fire protection is a priority. Their reliable spring return mechanism, high durability, and fast response ensure that fire dampers function effectively when needed the most.

Instruction
Product 24 VAC / VDC 230 VAC On –off / 3 – point Thermoelectrical tripping device Auxiliary switch
3 Nm till 0,5 m² max
SAFA 1-03 ✓ ✓
SAFA 1-03ST ✓ ✓ ✓ 2 SPDT fixed
SAFA 2-03 ✓ ✓
SAFA 2-03ST ✓ ✓ ✓ 2 SPDT fixed
5 Nm till 1 m² max
SAFA 1-05 ✓ ✓
SAFA 1-05ST ✓ ✓ ✓ 2 SPDT fixed
SAFA 2-05 ✓ ✓
SAFA 2-05ST ✓ ✓ ✓ 2 SPDT fixed
8 Nm till 1,5 m² max
SAFA 1-08 ✓ ✓
SAFA 1-08ST ✓ ✓ ✓ 2 SPDT fixed
SAFA 2-08 ✓ ✓
SAFA 2-08ST ✓ ✓ ✓ 2 SPDT fixed
20 Nm till 4 m² max
SAFA 1-20 ✓ ✓
SAFA 1-20ST ✓ ✓ ✓ 2 SPDT fixed
SAFA 2-20 ✓ ✓
SAFA 2-20ST ✓ ✓ ✓ 2 SPDT fixed

Non - spring return fire & smoke damper actuators

The SASA series fire and smoke non-spring return damper actuators are specifically designed for use with fire and smoke dampers, providing precise motorized control in HVAC systems. Unlike spring return actuators, the SASA series requires power to operate, making them ideal for applications where controlled positioning is required under normal conditions.

During operation, the actuator motorizes the damper to an open or closed position as required by the control signal. These actuators are widely used in fire protection systems to ensure proper airflow control and to contain smoke and flames in the event of a fire emergency. When power is lost, the damper remains in its last position until it is manually reset, or power is restored.


Features:

  • Motorized control: The damper is moved to its designated position only when power is supplied.
  • Torque options: 10 – 15 Nm, suitable for various fire and smoke damper sizes.
  • Power supply: 230 VAC or 24 VAC/VDC, adaptable for different HVAC installations.
  • Fast response time: Running time of less than 30 seconds, ensuring quick movement of dampers.
  • Integrated auxiliary switches: 2 fixed SPDT auxiliary switches for enhanced system monitoring and automation.
  • Customizable versions available: NENUTEC offers actuators with customized branding, color-coordinated designs, and tailored specifications upon request.


The SASA series actuators provide a robust and reliable solution for fire safety applications, ensuring efficient damper operation and compliance with fire safety regulations. Their motorized functionality, combined with fast positioning and integration options, makes them a valuable component in modern fire protection and HVAC systems.

Instruction
Product 24 VAC / VDC 230 VAC On –off / 3 – point Auxiliary switch
3 Nm till 0,5 m² max
SASA 1-10S ✓ ✓ 2 SPDT fixed
SAFA 2-10S ✓ ✓ 2 SPDT fixed
5 Nm till 1 m² max
SASA 1-15S ✓ ✓ 2 SPDT fixed
SAFA 2-15S ✓ ✓ 2 SPDT fixed

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