Saturn_Europa
Senior Member
- Location
- Fishing Industry
- Occupation
- Electrician Limited License NC
I was working on a short circuit today on a 3 phase 480 volt circuit. I thought I isolated the short and reset the breaker.
I heard a humming almost growling noise when the breaker closed for about 30 seconds. I am assuming this was vibration from excessive current flowing through the solenoid inside the breaker? The breaker opened shortly thereafter.
Is that normal? I've certainly have never heard that before. Should I plan on changing out the breaker or wait and see.
Its an Square D PowerPact HG 060 HGA36020YP. Pretty sure its thermal magnetic.
I heard a humming almost growling noise when the breaker closed for about 30 seconds. I am assuming this was vibration from excessive current flowing through the solenoid inside the breaker? The breaker opened shortly thereafter.
Is that normal? I've certainly have never heard that before. Should I plan on changing out the breaker or wait and see.
Its an Square D PowerPact HG 060 HGA36020YP. Pretty sure its thermal magnetic.