Circuit Breakers
Circuit breakers are among the most common hard-to-source items we handle. We supply molded case, insulated case and low-voltage power breakers across frame sizes, including obsolete frames and discontinued product lines.
Request a QuoteWhat we source
- Molded case circuit breakers (MCCB)
- Insulated case circuit breakers (ICCB)
- Low-voltage power and air circuit breakers
- Motor circuit protectors
- Bolt-on and plug-in branch breakers
- Trip units, rating plugs and accessories
What to send us
- Manufacturer and catalog numberThe single most useful piece of information
- Frame size and amp ratingFor example 150A within a 250A frame
- Number of polesOne, two or three pole
- Voltage ratingFor example 240V, 480V or 600V
- Interrupting ratingThe AIC rating, if specified
- Trip unit typeThermal-magnetic or electronic, and any accessories
Looking for circuit breakers?
Send the catalog number, the specifications, or a photo of the nameplate. New, used, surplus or obsolete — we will tell you what we can find.
Circuit Breakers we have listed
Individual catalog numbers, grouped by manufacturer. If the number you need is not here, send it to us anyway — this list is only what we have written up so far.
Other categories we handle
Switchgear
Low and medium voltage lineups, sections and replacement components.
View Equipment →Switchboards
Main and distribution switchboards, service entrance sections.
View Equipment →Transformers
Dry-type and liquid-filled units across common kVA ratings.
View Equipment →Panelboards
Lighting and power panels, interiors, tubs, trims and covers.
View Equipment →Disconnect Switches
Fusible and non-fusible safety switches, indoor and outdoor rated.
View Equipment →Motor Starters & Contactors
Combination starters, contactors, overload relays and MCC buckets.
View Equipment →Busway & Bus Plugs
Feeder and plug-in busway, elbows, fittings and bus plugs.
View Equipment →