Littelfuse 201A-AU Monitor 318518-761 double-throw design supports various wiring

double-throw design supports various wiring setups for multi-speed blowers

Refractory Protection: Features a new refractory burner sleeve to maintain thermal insulation and protect the burner housing from high-heat degradation

Dual Signal Output: Simultaneously provides 4-20 mA and 0-10V signals

Fast Cycle Time: 40 to 50-second run time provides rapid adjustment for critical airflow management

Littelfuse 201A-AU Monitor 318518-761 double-throw design supports various wiringThe 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