• FPTI-951/-IV and FPTI-951A/-IV are plug-in addressable multi-criteria detectors that combine photoelectric, thermal, and infrared (PTIR) sensors in one unit to sense multiple components of a fire. This approach enables enhanced sensitivity to real fire with heightened immunity to nuisance particulates.

• Multiple sensors and communication can greatly reduce nuisance alarms compared to single sensing methods. Sophisticated algorithms maximize the advantages of the sensor types. This detection strategy offers heightened immunity to nuisance particulates and enhanced sensitivity to real fire.

• Multi-criteria detection
• UL 268 7th Edition and UL 521 Listed; Canadian models CAN/ ULC S529 and CAN/ULC S530
• New modern profile
• Analog communications
•  Low standby current
• Rotary address switches
•  Dual LEDs for 360° visibility
•  Expanded color options
•  FlashScan protocol support on all models; FlashScan and CLIP protocol support on -IV models

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FPTI-951 Multi-Criteria Photo/Thermal/Infrared Detector

PHYSICAL
• Height: 2.0" (51 mm) installed in B300(A)-6 base
• Diameter: 6.2" (156 mm) installed in B300(A)-6 base; 4.1" (104 mm) installed in B501-WHITE/-IV/-BL base
• Weight: 3.4 oz. (95 g) d
• Color: White (-IV models are ivory)
• Operating Humidity Range: 15% to 90% Relative Humidity, Noncondensing
• Operating Temperature Range: 32°F to 100°F (0°C to 38°C)
• Air Velocity: 0 to 300 ft./min. (0 to 91.4 m/min.)
ELECTRICAL SPECIFICATIONS
• Operating Voltage Range: 15 to 32 VDC

• Operating Current @ 24 VDC: 200 uA (one communication every 5 seconds with green LED blink on communication)
• Maximum Alarm Current: 2 mA @ 24 VDC (one communication every 5 seconds with red LED solid on)
• Maximum Current: 4.5 mA @ 24 VDC (one communication every 5 seconds with amber LED solid on)
• Isolator Load Rating: 0.0063

• UL/ULC: S1111
• FM Approved
• CSFM: 7272-0028:0510