This resettable thermal switch functions as a fail-safe

Automatic Reset Functionality: Eliminates the need for manual resets

eliminating the risk of porosity or stress cracking under pressure

for safety and compliance with HVAC technical specifications

this brass refrigerant adapter is fully compatible with copper

Nordyne 621931R Relay This resettable thermal switch functionsFor veteran technicians servicing Nordyne, Intertherm, or Miller equipment, the Nordyne 621931R Relay is the critical OEM replacement part for ensuring consistent blower motor and electric heat kit operation. This SPDT NO NC relay (Single Pole Double Throw, Normally Open Normally Closed) is the direct cross reference for Nordyne 621931, as well as several legacy part numbers including 6219310 and PR1931. Built for versatility in high demand