Captorofsin1
Member
- Occupation
- Electrical contractor
Hello. Since the new requirement for pool pump motors of having to upgrade to GFCI protection when a pool pump motor is replaced, I've had a handful of these calls to upgrade the OCP.
I fully understand the GFCI requirement.
When looking at the 230 volts max amps it would read that the max amps would be 9.5 amps.
15 (amps) x .80 = 12 (amps).
This means that 9.5 amps is well under the 80% max nominal load. This means that a 15 amp OCPD device would be good in this application.
Every motor that I've encountered so far has (as per the specification sticker and electrical code) not required over a 15 amp double pole OCPD. Why does everyone that I encounter have a 20 amp OCPD?
Am I missing something?
I fully understand the GFCI requirement.
When looking at the 230 volts max amps it would read that the max amps would be 9.5 amps.
15 (amps) x .80 = 12 (amps).
This means that 9.5 amps is well under the 80% max nominal load. This means that a 15 amp OCPD device would be good in this application.
Every motor that I've encountered so far has (as per the specification sticker and electrical code) not required over a 15 amp double pole OCPD. Why does everyone that I encounter have a 20 amp OCPD?
Am I missing something?