A Traulsen 337-60305-00 Hi Limit Switch cuts power when temperatures rise too high to protect internal components and maintain safe performance.
The hi limit switch interrupts power when the proofing cabinet reaches an unsafe temperature condition, protecting heating components and surrounding systems from overheating. Its manual reset design matters because it requires a deliberate restart after a high-temperature event, adding a safety checkpoint that can prevent repeated fault cycling.
The hi limit switch may need to be replaced if the proofing cabinet shuts down unexpectedly, trips more often than normal or does not resume operation reliably after a reset. Physical signs can include visible heat damage, discoloration, worn terminals or corrosion and environmental signs may include repeated exposure to excessive heat, moisture or grease buildup around the switch area.
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