SupcoUniversal Replacement Flame Sensors
Supco Flame Sensor: Universal, Direct Spark Ignition, Straight, 3 in Probe Lg
The Supco FLS401 is a universal replacement flame sensor designed for direct spark ignition systems. This straight-probe sensor features a 3-inch probe length with a stud mount and hardwired electrical connection. It…
SKU 3G-OTH-68539
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Supco Products
3G Electric (S) Pte. Ltd. — Singapore
Product Description
The Supco FLS401 is a universal replacement flame sensor designed for direct spark ignition systems. This straight-probe sensor features a 3-inch probe length with a stud mount and hardwired electrical connection. It is a direct replacement for the White Rodgers 760-401 flame sensor.
Used in
Common applications for SupcoCommercial refrigeration display cases — Supco RO82 relay and CSS-25U starter for compressor motor control without run capacitors
Medium-load HVAC systems — Supco SPP 6/SPP 8 hard-start devices to reduce compressor inrush current and extend motor lifespan
Cold-chain pharmaceutical and food storage — SL300TH temperature–humidity data logger for continuous monitoring and regulatory documentation
Refrigerant service operations — Piercing valves and perforator cocks in 1/2" and 5/8" sizes for fast, non-invasive line access
Compressor thermal management — Universal Compressor Door for reducing shell temperature and improving efficiency in hot ambient conditions
Retrofit and field repairs — Supco controls with Quick Connect terminals for rapid installation in legacy refrigeration circuits
Supco Products
3G Electric supplies Supco universal replacement flame sensors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
