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Supco FLS401 Universal Replacement Flame Sensor - Universal Replacement Flame Sensors
SupcoUniversal Replacement Flame Sensors

Supco FLS401 Universal Replacement Flame Sensor

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

Also listed as: FLS 401 · FLS-401

Brand
Supco
Item
FLS401 Universal Replacement Flame Sensor
Part Number
FLS401
Category
Universal Replacement Flame Sensors
Available to Order
Also known as:FLS401Supco
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Supco
Manufacturer Part Number
FLS401
Type
Direct Spark Ignition, Straight, Hardwired, Stud Mount
Probe Lg
3 in
Product Type
Flame Sensor
Probe Tip Angle
Straight
Probe Mounting Type
Stud Mount
Replacement for OEM Brand
White Rodgers
Electrical Connection Type
Hardwired
Replacement for OEM Part Number
760-401

Technical Documents

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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.

Frequently Asked Questions

What is the Supco FLS401 flame sensor used for?

The Supco FLS401 is a universal replacement flame sensor for direct spark ignition systems. It detects burner flame presence and signals the gas valve to stay open. Commonly used in furnaces and boilers, it directly replaces the White Rodgers 760-401 sensor.

What are the specifications of the Supco FLS401 flame sensor?

The Supco FLS401 is a straight-probe, stud-mount flame sensor with a 3-inch probe length and hardwired electrical connection. It is designed for direct spark ignition systems and replaces the White Rodgers 760-401. The probe tip angle is straight.

Where to buy the Supco FLS401 flame sensor worldwide?

3G Electric supplies the Supco FLS401 flame sensor worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us to order this direct replacement for the White Rodgers 760-401.

How to install the Supco FLS401 flame sensor?

To install the Supco FLS401, first disconnect power to the ignition system. Mount the sensor using the stud mount, ensuring the 3-inch probe is positioned in the burner flame path. Connect the hardwired leads per the wiring diagram. Verify flame signal with a microamp meter.

Used in

Common applications for Supco
Commercial refrigeration maintenance — Supco SL5709 defrost thermostat for Larkin evaporator coils
HVAC system troubleshooting — Supco IG418 universal hot surface igniter for gas furnace replacement
Condensate management in negative pressure systems — Supco NPW1H drain trap for rooftop units
Temperature and sound logging in cold storage — Supco CR4 circular chart recorder for compliance documentation
Compressor protection in light industrial cooling — Supco CSS-25U hard-start device for inrush current control
Safety limit control in heating appliances — Supco SHM350 surface-mount limit control for over-temperature shutdown
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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.

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