After about a year I had a failure of a 3 amp tyco/potter&brumsfield W23X1A1G-3 breaker. Breaker was purchased new from B&C. The failure got me stranded since my PMag was on it and the other Mag doesn't have the impulse coupler.
I assumed that breakers failed either open or closed or perhaps some jiggly intermittant. This one failed differently. I had battery voltage of 12.5V on the line side and the load side measured 10.5V. This was the case with and without the PMag connected. The impedence across the breaker is 350 Ohms. Putting a new breaker in and of course I had 12.5V on the output and it started on the second blade.
Is this a 'common' way for breakers to fail?
I assumed that breakers failed either open or closed or perhaps some jiggly intermittant. This one failed differently. I had battery voltage of 12.5V on the line side and the load side measured 10.5V. This was the case with and without the PMag connected. The impedence across the breaker is 350 Ohms. Putting a new breaker in and of course I had 12.5V on the output and it started on the second blade.
Is this a 'common' way for breakers to fail?