What to Send Us
- Manufacturer and model number
- Catalog / part number if available
- Voltage class and interrupt rating
- Frame size and trip rating
- Photos of nameplate and current condition
- Required quantity
- Timeline (routine or urgent)
Legacy & Obsolete Parts
Tested Before Install
Documented & Tested
Nationwide Coverage
What We Source & Service
Legacy components, obsolete breakers, and hard-to-find switchgear parts.
When a standard distributor says a part is discontinued, most contractors stop there. We keep going. Our obsolete circuit breaker sourcing works through specialty channels and tested-surplus networks that pick up where the normal supply chain ends, from legacy switchgear parts to hard-to-find relays. We handle the search, the vetting, the testing, and the install.
- Circuit breakers (all voltage classes, all major manufacturers)
- Switchgear bus and structural components
- Protective relays (electromechanical and solid-state)
- Motor control center buckets and components
- Transfer switch components
- Transformer tap changers and bushings
- Legacy fuses and fuse holders
How We Source
We don’t stop at the usual distributors.
01
Submit what you need
Send us the nameplate data: make, model, catalog number, and ratings. Photos of the part and where it’s installed help too. The more detail you send, the faster we can confirm we can get it.
02
We search our network
We work through specialty distributors and tested-surplus channels that most contractors can’t reach. If a part that fits exists, we find it and confirm it matches your specs before we quote it.
03
Testing before delivery
We test surplus parts before they ship. You get the test results with the part, not after it’s installed.
04
Installation & close-out
If you need it installed, our team installs it, including testing after the install and close-out records. No separate contractor and no gap between sourcing and field work.
Have a part number? Tell us what you need and we’ll search our network.
Common Questions
Obsolete breaker and parts sourcing questions, answered.
Can you find obsolete or discontinued circuit breakers?
Yes. Sourcing obsolete circuit breakers, legacy switchgear parts, and hard-to-find components is a core BASS MCS service. When a standard distributor says a part is discontinued, we keep going through specialty distributors and tested-surplus networks most contractors can’t reach.
How do you source obsolete breakers and parts?
We work through specialty distributors and tested-surplus channels beyond the normal supply chain. Once we confirm a part matches your specifications, we test it and provide the results before it ships.
Are surplus or used breakers tested before installation?
Yes. We test surplus parts before they ship and deliver the test results with the part, not after it’s installed. If you need it installed, our team installs and re-tests it.
What information do you need to source a part?
Send the manufacturer and model number, catalog or part number if available, voltage class and interrupt rating, frame size and trip rating, photos of the nameplate, the quantity, and your timeline. The more detail you send, the faster we can confirm we can get it.
Do you install the parts you source?
Yes. If you need it installed, we install it, test it after the install, and provide close-out records, so there’s no gap between sourcing and field work.
Related Services
Repairs & Corrective Work
We source the part and install it. One team, no hand-off.
View serviceElectrical Inspections
Know which components are at end-of-life before they fail.
View serviceAsset Documentation
Accurate asset records make sourcing faster and more accurate.
View service