Question: how to calculate rla from lra?
Answer: For example, 18,000 BTUh is equivalent to 2 HP (horsepower) or 24,000 = 2.5 HP. Let's also note for other readers that RLA = running load amps - the current drawn normally during the operation of an electric motor. (for most electric motors LRA is about 5 times greater than its RLA/FLA and some may be 7 times greater.