SYSTEM SENSOR Duct Smoke Detector: 120V/24V Volt, 65 mA Current, Sound Alert, Duct Mount
The SYSTEM SENSOR Duct Smoke Detector (MPN 2D51) is a UL-listed, hardwired photoelectric smoke detector designed for duct mounting. It operates at 120V/24V with a 65 mA current rating and provides a sound alert. This…
SKU 3G-OTH-546843
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Product Description
The SYSTEM SENSOR Duct Smoke Detector (MPN 2D51) is a UL-listed, hardwired photoelectric smoke detector designed for duct mounting. It operates at 120V/24V with a 65 mA current rating and provides a sound alert. This round detector is part of our broad industrial safety portfolio, backed by specialist expertise in controls and electrical components.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the SYSTEM SENSOR 2D51 duct smoke detector used for?
The SYSTEM SENSOR 2D51 is a UL-listed photoelectric duct smoke detector that monitors HVAC ducts for smoke. It triggers a sound alert when smoke is detected, helping to prevent recirculation of smoke through a building's ventilation system. 3G Electric supplies this hardwired detector for industrial fire safety applications.
What are the specifications of the SYSTEM SENSOR 2D51 duct smoke detector?
The SYSTEM SENSOR 2D51 is a round, hardwired photoelectric duct smoke detector rated for 120V/24V with a 65 mA current draw. It mounts directly in the duct and provides a sound alert. It is UL listed and carries MPN 2D51. 3G Electric sources this detector for industrial fire alarm systems.
Where to buy the SYSTEM SENSOR 2D51 duct smoke detector worldwide?
3G Electric supplies the SYSTEM SENSOR 2D51 duct smoke detector to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us to order this UL-listed, hardwired photoelectric smoke detector for duct mounting.
How to install the SYSTEM SENSOR 2D51 duct smoke detector?
Install the SYSTEM SENSOR 2D51 in the duct per the manufacturer's instructions, ensuring proper airflow orientation. Hardwire it to a 120V/24V power source and test the sound alert. 3G Electric supplies this UL-listed detector; consult a qualified electrician for installation and local code compliance.
SYSTEM SENSOR Products
3G Electric supplies SYSTEM SENSOR smoke detectors for fire alarm systems. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.




