Description
The Cutler Hammer-Eaton C440A1A020SF0 Overload Relay (4 – 20 A) is a type of electrical protection part that is used in HVAC systems, to guard against the conditions of the motors and other driven components. It is installed as a motor control circuit to measure current draw and cut power in case an overload condition is detected, and is handy in avoiding motor damage. It is commonly found in control panels or contactor assemblies in air handling units, chillers or furnace systems, where it is installed to provide safe operation and equipment life by mitigating electrical stress.
