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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.
Garrett G.
2025-08-18 16:44:36
Had a main breaker for a clients panel drop a leg of power and the local supply house did not have any in stock. Shipping was fast and breaker arrived with no damage. Direct swap and got the customers power back. Make sure to match up the breaker part number and what style the panel uses.
Britney
2025-08-06 12:59:49
This worked perfectly for my clients breaker box it’s just what we needed
Rostyslav Snizhko
2025-07-11 13:07:43
Works perfectly
BRoss
2025-04-23 10:44:41
Installed in detached garage sub panel.
Mark
2025-04-22 18:09:04
Very happy with product
LaKetria
2025-04-17 15:24:07
Perfect for electrical
L. Garner
2025-02-06 16:49:28
This unit fit perfectly into my Siemens 125 amp Main Lug PL Series Load Center. Quick to install and great price.
P. Craig
2025-01-03 17:24:56
Really easy to install. The lugs on the breaker take a slotted screwdriver as opposed to hex bolts, unfortunately.
Trevor
2024-12-18 14:20:31
ordered a 2pole 100 and 125. the 125 one pole would not close, no idea why. Been having trouble with breakers on Amazon being dropped and chipped and broken by people in the shipping delivery process i suspect.
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