What is Ampere (Amp)?
Ampere, often abbreviated as Amp (A), is the standard unit of electrical current in the International System of Units (SI). It measures the rate of electron flow in a conductor. One ampere equals one coulomb of charge passing through a point in one second.
In electrical systems, amperage determines how much current a circuit can safely carry. Electrical circuits, appliances, and HVAC systems are designed with specific amperage ratings to ensure safety and efficiency.
For HVAC applications, understanding amperage is essential when working with compressors, motors, and electrical heating elements. A system drawing excessive amperage may indicate electrical faults, poor connections, or failing components.
Electricians use amperage ratings to select wire sizes, circuit breakers, and fuses. Overloading a circuit beyond its ampacity can result in overheating, tripped breakers, or even electrical fires.
