TELEFIRE DTH-800A

The TELEFIRE DTH-800A is a duct-mount smoke detector housing, EN54-7 and UL268 certified, designed for rapid and reliable smoke detection in HVAC and ventilation systems. Its transparent cover and sampling tube system ensure accurate smoke sampling from the airstream, while compatibility with both conventional (TFO-480) and analog addressable (TFO-480A) TELEFIRE heads allows flexible integration into TELEFIRE’s addressable panels.

Key features

• Duct-mount smoke detector housing with sampling tubes
• Transparent cover for visual inspection
• EN54-7 and UL268 certified
• Dust- and dirt-protection via sampling tube design
• Compatible with both analog addressable (TFO-480A) and conventional (TFO-480) detectors
• Wide operating temperature: –10°C to +60°C
• Humidity: 10–93% (non-condensing)
• Air velocity: 300–4,000 ft/min
• Robust, multi-layer construction

Technical data

• Dimensions (W × H × D): 195 × 150 × 88 mm
• Weight (with detector head): 800g
• Operating temperature: –10°C to +60°C
• Relative humidity: 10–93% (non-condensing)
• Electrical supply: depends on detector (TFO-480 or TFO-480A)
• CE marked
• Fully compatible with TELEFIRE 7000, 3000, Guard-V, ADR-7000, Saver-7000 panels

Installation

• Mounted in the center of return air duct, with proper air sampling and exhaust tubes
• Detector base connects via two-wire loop, twisted pair cable recommended
• Indoor use only; does not replace area smoke detection

Applications

• HVAC air ducts in buildings for fire safety enhancement
• Industrial, office, and public infrastructure ventilation systems
• Large volume spaces needing early smoke detection in ductwork

Compatible systems and products

• TFO-480 conventional smoke detector
• TFO-480A analog addressable smoke detector
• TELEFIRE ADR-7000 addressable panel
• SAVER-7000 panel
• GUARD-V panel
• 3000ADR panel
• TFB-180 detector base
• AN-1TFL/Remote indicator
• Any TELEFIRE EN54 compatible fire system