A mechanically seized compressor draws what current type?

In a situation where a compressor is mechanically seized, it cannot rotate or perform its intended function. As a result, the electrical current running through the compressor reflects this condition.

Locked Rotor Amperage (LRA) is the maximum current a motor draws when it is at standstill, meaning it has not started turning, which is exactly what happens when a compressor is mechanically seized. This high current draw occurs because the motor attempts to start under a heavy load, leading to increased electrical demand.

In contrast, normal run current refers to the amperage drawn when the compressor operates properly and is fully running, while surge current typically describes an initial jump in amperage when a device first powers on, and low amperage would suggest an efficient operating condition. However, in the case of a mechanically seized compressor, the high LRA is the defining characteristic because it indicates that the motor is stalled and unable to complete its cycle.