Description
The Armstrong R40923-015 L130-40F Limit Switch is a dependable high-temperature safety component designed to protect furnace systems from overheating. This replacement switch accurately monitors internal temperatures and shuts down the burner when needed to maintain safe operation. Ideal for fixing furnace shutdown issues, restoring proper cycling, and ensuring long-term system protection.
Key Features
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Direct replacement Armstrong R40923-015 L130-40F limit switch
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High-temperature safety control for furnace systems
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Helps prevent overheating and unsafe operation
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Accurate temperature sensing for dependable cycling
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Durable, long-lasting construction
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Compatible with select Armstrong and Allied furnace models






