Sell Insulated-Case Circuit Breakers

What in an insulated-case breaker lot may be reviewable

A fixed breaker may retain lugs, rear connections, a motor operator, shunt trip, undervoltage release, auxiliary contacts, alarm switch, and interlocks. A drawout unit may include a cassette, cell hardware, racking interface, shutters, and secondary disconnects. Keep compatible parts together and photograph them as a set before separating them.

Condition and completeness matter. State whether the breaker was a shelf spare, removed from service, wet or dusty, damaged, or missing a trip unit. Do not describe an untested unit as operational. Schneider distinguishes unit-mount, rear-connection, and drawout arrangements, listing shunt trips, releases, switches, motor operators, and interlocks [2].

Identify the breaker before you submit it

Start with the manufacturer name, catalog or model number, and serial number from the breaker label. Photograph the front label, side labels, trip-unit face, and any rating plate without relying on a handwritten description. The frame rating is the breaker family’s maximum ampere capability; the trip rating or sensor setting describes the installed protection level. Record both exactly as marked. Do not infer one from the other.

Also capture the pole count, system voltage rating, and interrupting rating in kA RMS at the stated voltage. A number such as 65 kA means little by itself because published interrupting ratings vary with voltage. For example, Schneider’s catalog tables show distinct rating values at 240 Vac, 480Y/277 Vac, 480 Vac, and 600 Vac [2]. Note whether the trip unit is electronic, its make and model, and any settings visible from the exterior; do not remove covers or access live compartments to obtain information.

• Manufacturer; catalog/model; serial number; and date code, when legible.
• Frame rating, trip rating or sensor, poles, voltage, and interrupting rating with voltage basis.
• Trip-unit model, ground-fault function, communications, and accessories visible on the unit.
• Fixed, rear-connected, unit-mounted, plug-in, or drawout mounting; include cassette details if present.

Send photos and data that make a remote review possible

Send wide photographs showing each breaker’s overall condition and close photographs of every readable label. For a drawout design, include the breaker racked out only when facility procedure permits, the front and rear connections, the cradle or cassette identification, secondary contacts, and visible damage. For a fixed unit, show line and load terminals, mounting feet or rails, and installed accessories. A group photo with a count plus representative close-ups is more useful than one image of a large pallet.

In the accompanying list, state quantity by exact catalog number, whether units are identical, physical condition, test or service history if known, and whether any parts are missing. Include dimensions and approximate weight if they are known from records. Attach inventory sheets, purchase records, maintenance reports, one-line diagrams, and retirement or decommissioning documents when available. These records clarify configuration and chain of custody; they are not a substitute for a qualified inspection.

Keep isolation, authorization, and documentation ahead of removal

Do not open energized equipment, remove an energized breaker, or loosen terminals to get a better photo. The facility owner or employer should control access, switching, energy-isolation procedures, and authorization. OSHA’s lockout/tagout standard requires the employer to establish an energy-control program and requires verification of isolation before work begins [3]. Coordinate with the site’s qualified electrical personnel and follow the applicable written procedures, labels, and access controls.

Before a breaker leaves the site, retain a simple lot record: facility contact, owner authorization, equipment location, itemized count, condition notes, and photos tied to the items. Record whether the unit has been de-energized and released for removal, not merely switched off. If contractors are involved, align their procedures with the site’s process; OSHA specifically addresses communication between on-site and outside employers for covered servicing work [3].

• Use the site’s authorized electrical and safety process before inspection or removal.
• Preserve labels, tags, trip units, lugs, cassettes, and associated hardware with the correct item.
• Identify any contamination, water exposure, missing barriers, or suspected damage before handling.

Plan freight and site access around the actual equipment

A breaker may fit on a pallet, while a drawout unit with its cassette or switchboard section requires a different plan. State whether the equipment is already loose, still installed, on a dock, in a secured electrical room, upstairs, or behind aisle and doorway restrictions. Share available loading equipment, dock height, forklift limits, crating needs, rigging rules, appointment requirements, and any site insurance or safety orientation requirements. These facts help determine whether the opportunity can be evaluated responsibly.

Protect the value of the information as well as the hardware. Do not ship a drawout breaker without securing loose accessories and identifying the matching cassette. Keep nameplate photos with the lot record, use packaging that prevents cracked housings or broken control components, and disclose any uncertainty about quantity or condition. For related equipment categories and geographic starting points, see the circuit-breaker buyer city directory at /circuit-breaker-buyers and the equipment guides listed below.