jeff47
DIY
- Reaction score
- 1
Hello,
I was checking my breaker box during the process of shutting down my pool for the season. My pool equipment (pumps, timer) run at 240v. When I went to turn off the breaker, I realized it was two single pole breakers that were independent. That is, there was no handle tie so they could trip independently.
They are breakers 27 and 29, both are single pole 15amp Square D QO.
If I trip both, my voltmeter at the pump reads 0v. If I turn on either 27 or 29 alone, they read ~5v. If I turn on both 27 & 29, I get the expected 240-250v.
Two questions:
1) Shouldn't there be a handle tie between 27 & 29, or a double pole breaker?
2) Why do I see 5v when only one breaker is active? I was expecting 120v.
I did not install these breakers - we are fairly new to the house so the system predated us. But I'm puzzled by the setup.
I was checking my breaker box during the process of shutting down my pool for the season. My pool equipment (pumps, timer) run at 240v. When I went to turn off the breaker, I realized it was two single pole breakers that were independent. That is, there was no handle tie so they could trip independently.
They are breakers 27 and 29, both are single pole 15amp Square D QO.
If I trip both, my voltmeter at the pump reads 0v. If I turn on either 27 or 29 alone, they read ~5v. If I turn on both 27 & 29, I get the expected 240-250v.
Two questions:
1) Shouldn't there be a handle tie between 27 & 29, or a double pole breaker?
2) Why do I see 5v when only one breaker is active? I was expecting 120v.
I did not install these breakers - we are fairly new to the house so the system predated us. But I'm puzzled by the setup.