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Key Benefits: Precise Thermal Calibration: Opens at 160°F (+/- tolerance) and automatically resets at 130°F to prevent heat exchanger fatigue
success depends on the specific knockout or conduit entry size
Common Questions Is a keyway required for this specific 3/8" bore size
A shorter probe may sit in a "dead zone" and fail to detect critical overheating events
Modine 5H0730570003 Block Vent Switch Key Benefits: Precise Thermal Calibration:The Modine 5H0730570003 Blocked Vent Switch is a critical safety component engineered to monitor flue gas temperatures and prevent hazardous operating conditions. This genuine OEM replacement part is specifically designed for Modine PD400 and BD400 unit heaters, serving as the direct functional successor to the legacy 5H73057 3 model. Operating as a manual reset safety switch, it is calibrated to trip when vent temperatures reach 200F (93C),
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