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A bulged top indicates the internal pressure interrupter has tripped due to overheating or an electrical fault
they are specifically designed with a rejection groove to fit into Class R fuse blocks
Common Questions Does this regulator require an external vent line
While designed for the Siemens SIRIUS 3TX71 lineage
Automatic Reset: Eliminates the need for manual intervention by resetting the circuit at 200
MARS 39220 Limit Switch A bulged top indicates theThe MARS 39220 Limit Switch is a versatile, high reliability solution for field service technicians needing an exact or universal replacement for furnace high limit applications. This adjustable snap disc thermostat features a temperature range of 135F to 175F with a fixed 40F differential, allowing for precise calibration to match specific internal plenum requirements. Designed as an open on rise safety device, the 39220 ensures the heating circuit
US$ 625.00
US$ 573.50
US$ 1500.00
US$ 1500.00