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it's a critical calibration tool for your next tune-up
reducing labor time and ensuring system reliability
Technicians typically look for humming sounds without rotation
and 1/3 HP models
Littelfuse 201A-AU Monitor 319848-301 it's a critical calibration toolThe 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
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