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Siemens main breaker kits are used to convert the Ultimate type of main lug load centers to main breaker load centers, or can be used as a replacement main breaker in main breaker type Ultimate load centers. Ultimate load centers are the current load center in production and went into production in 2002. Check the load center wiring diagram for confirmation. Siemens strongly recommends against the use of "used" breakers. The installation of used breakers in a Siemens panel will void the warranty on the panel. Siemens does not sell used breakers and has not approved any 3rd party sellers to do so.
From the Manufacturer
SIEMENS main breaker kits are used to convert the Ultimate type of main lug load centers to main breaker load centers, or can be used as a replacement main breaker in main breaker type Ultimate load centers. Ultimate load centers are the current load center in production and went into production in 2002. Check the load center wiring diagram for confirmation.
thesurveillance
2025-08-04 18:06:36
A life saving value. I found it on Amazon before my electrician could get to the electrical supply store, saving me an additional $140 "service call".Made me look like a hero in front of my renters, which is very rare.
AKane
2025-07-30 13:20:27
I ordered a new Siemens Main Breaker Panel and that 100A main breaker was dead on arrival. So I ordered this 'Used' breaker and it works perfectly. Flips on/off as it should. I haven't tried to pull > 100A through it, so I haven't tested it to see if it trips as it should.
Charity Atwood
2025-06-25 17:39:28
It was a great fix to the electric box when fuse are so costly Fit right in
Google shopper
2025-06-07 19:25:48
Easy to install waiting to see how long it works for.
Tony Elias
2025-04-24 15:19:59
Excellent siemens main breaker works great I'm so happy with the purchase and was delivered on time thank you.
Debbie Green
2025-02-21 14:28:04
works great
Curtis Beyer
2024-11-23 17:31:30
Exactly what I needed and expected at a good price
Steven D
2024-11-20 13:33:44
I failed an inspection on an addition because my Siemens load panel had too many circuits for not having a single cut-off point. I was looking at some significant re-wiring for adding a 100 breaker. Then reviewed the box and found that this breaker could be added. It took 5 minutes.
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