Product Overview
The Matrix Industrial Traders Spring Return Fire & Smoke Damper Actuator is engineered to comply with stringent fire and life-safety building codes. In the event of a power loss, thermal trip (thermo-electric switch activation), or central fire alarm dispatch, the internal high-grade spring mechanically returns the damper to its fail-safe closed (or open) position within seconds.
Key Features
- Mechanical Fail-Safe Spring: Closes dampers reliably without relying on auxiliary battery systems.
- Dual Auxiliary End Switches: Integrated SPDT microswitches report real-time fully-open and fully-closed verification to fire panels.
- Thermal Duct Sensor Ready: Pre-wired compatibility with 72°C / 95°C duct thermal safety cut-off sensors.
- Robust Steel Housing: Fire-resistant metal construction designed to endure high ambient temperatures during emergency egress.
Technical Specifications
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| Parameter | Standard Specification |
|---|---|
| Running Torque (Motor) | 20 Nm min (Spring Torque: 20 Nm) |
| Motor Operating Time | 50 to 75 seconds (motor drive) |
| Spring Closing Time | 15 to 20 seconds (rapid fail-safe release) |
| Nominal Voltage | 24V AC/DC or 230V AC (50/60 Hz) |
| Auxiliary Switches | 2 x SPDT (6A / 250V AC) adjustable switches |
| Shaft Connection | Square 12x12mm form-fit or universal clamp |
| Degree of Protection | IP54 |
Applications & Industries
UL555 / UL555S fire dampers, smoke barrier isolation, hospital compartmentation zones, tunnel ventilation, and commercial high-rise HVAC safety ducting.
