Locked Rotor Alarm Signal Output (yellow wire lead): Under normal conditions a locked rotor alarm signal outputs a constant signal frequency... if the fan stops spinning or "locks", it then outputs a "LOW" condition signal. If the fan starts spinning again, the "LOW" condition signal will go away.
•Dimensions: 120 x 120 x 25mm (4.7 x 4.7 x 1")
•Mounting Center: 104.8mm (4.13")
•Rating: 12VDC
•Current: 0.25 Amps
•Power: 3 W
•Bearing: Ball
•Speed: 2500 RPM
•Noise: 43.84 dBA
•Max Air: 74.5 CFM
•Max Pressure: 3.8 mmH2O
•Temperature: -30 to +75 C
•Hours: 35000-50000
•Termination: Wire leads
•Weight: 150g
•Impeller: Glass fibre reinforced plastic 94V-0 PBT
•Frame: Glass fibre reinforced plastic 94V-0 PBT