this 4520-2031-000 switch may fit other units if the temperature range and mounting specifications align

this analog thermometer features a sweat brass well to ensure a secure

providing reliable operation even in low-load conditions

The Emerson Alco 065406

you can use an SPDT relay to replace an SPST by identifying the common and the normally open (NO) terminals and leaving the normally closed (NC) terminal unused

Schneider Electric (Barber Colman) TC-5231 Thermostat 30067439-890 this 4520-2031-000 switch may fitThe Schneider Electric TC 5231 is a commercial grade low temperature thermostat designed for high performance freeze protection in AHU coils and heat exchangers. This single pole double throw (SPDT) controller features an adjustable 35F to 60F setpoint range and a 20 foot vapor charged sensing capillary, making it ideal for monitoring temperatures across large coil faces. As the direct replacement for the legacy Barber Colman 2284 421, it integrates