Ground size question

[jcerm]

I’m installing an e23T-3 kiln (48A, 240V, 1 phase) using its existing power cord (6 AWG 2-conductor + 8 AWG ground, rated at 105°C). My plan is:

1. Hard wire the power cord to a 60A, 250V fused disconnect switch (60A fuses) - which is recommended by the manufacturer.
2. Run MC 6/2 cable with a 10 AWG ground from the switch to a 60A 2-pole circuit breaker.

NEC 250.122 states the ground size is based on the upstream overcurrent device, which here is the 60A fuses. Per the table, 10 AWG copper is sufficient.

My question: Is there any issue with the disconnect to breaker ground being 10 AWG, while the kiln’s power cord uses an 8 AWG ground?

Thanks in advance for your insight!

 

[tom baker]

Per forum rules we are unable to answer your question, as we don’t know what else you are not asking. Find a electrician or try DIYchatroom.com