Designed as a direct replacement for C44075R

it is functionally identical to part numbers 57W78 and 57W7801

Common Questions: What is the correct rotation for this motor

With automatic thermal overload protection and a CCWOSE rotation

It is constructed for bi-directional applications

Aprilaire 4977 Relay L99H008 Designed as a direct replacementThe Aprilaire 4977 Relay is a high performance 24v Coil DPDT Relay designed for seamless integration within advanced HVACR systems. This versatile double pole double throw relay serves as a critical HVAC control component, allowing for the simultaneous management of two independent circuits. Engineered for Aprilaire humidifiers and air cleaners, this 24 volt switching relay ensures precise electrical isolation and reliable secondary hardware