Description
The Resideo RC840T-277 is an electro mechanical relay has a 24V to 277V transformer for the reliable control of HVAC systems. Its a high-efficiency relay and a step-down transformer to guarantee stability and accuracy of the relay in the wide voltage range. It has a frequency of 60 Hz and is capable of functioning properly under temperatures ranging from -4°F – 140°F and hence suitable for different situations and climate changes. It is ideal for controlling both heating and cooling systems, and is a main point of communication between low voltage control circuits and high voltage HVAC components.
