Littelfuse 201A-AU Monitor 319848-301 Technicians typically look for humming

Technicians typically look for humming sounds without rotation

Designed specifically for Goodman and Amana direct-drive applications

reducing labor time and ensuring system reliability

and 1/3 HP models

The rotolock connections

Littelfuse 201A-AU Monitor 319848-301 Technicians typically look for hummingThe Littelfuse 201A AU is a critical 3 phase voltage monitor engineered to safeguard motors from catastrophic power line faults. This auto ranging motor protection relay operates within a wide 190480 V AC window at 50 60 Hz, making it a standard choice for HVACR contractors managing various system sizes. Using proprietary microcontroller based circuitry, the unit provides continuous phase loss protection, voltage unbalance detection, and monitoring