Trane SWT1211 Switch 326010-701 Resistance testing with a multimeter

Resistance testing with a multimeter across the terminals should correspond to the manufacturer’s NTC 10k ohm chart

meaning it can handle being energized 100% of the time

or extreme electrical surges typically lead to failure

on high fire

Common Questions & Technical Support What does a 0

Trane SWT1211 Switch 326010-701 Resistance testing with a multimeterThe Trane SWT1211 (also categorized under SWT01211) is an essential high pressure cutout switch designed for HVAC system protection. This SPST cutout switch features a single pole single throw configuration, calibrated with a 300 405# pressure range. In the field, this means the switch is engineered to interrupt the electrical circuit (cut out) when system pressure reaches 405 PSI and reset (cut in) at 300 PSI, effectively preventing compressor damage