Sell Molded-Case Circuit Breakers

Identify the breaker from its markings

Begin with the manufacturer and the complete catalog, type, or model number on the front label, side label, or data plate. Photograph every readable marking. Record frame size and ampere trip rating separately: the frame identifies the product family and maximum physical rating range, while the trip rating identifies the installed protective rating or setting. A 400 A frame is not necessarily a 400 A trip breaker. If a label is worn, describe the uncertainty rather than reconstructing a number from memory.

Also record pole count, rated voltage, frequency where marked, and interrupting rating. Usually stated as AIC or kAIC, interrupting rating is short-circuit interrupting capability at a stated voltage; it is not the continuous ampere rating. Put the voltage alongside every interrupting-rating value and note AC, DC, or both. Identify the trip system as thermal-magnetic, magnetic-only, or electronic where the labels support it. For an electronic trip unit, photograph its face, rating plug, and visible settings without changing them.

Send photos and data that make the lot reviewable

A small, organized photo set is more useful than distant site photos. For an uninstalled, authorized-to-handle breaker, capture front, labels, sides, terminals, rear or mounting interface, accessories, packaging, and any defects. For installed equipment, let facility-qualified personnel decide what can be safely photographed. Do not open energized equipment, remove covers, reach past barriers, or loosen terminals for a better image. Preserve labels, seals, and settings.

Use one inventory line per catalog number. Distinguish exact matches from similar-looking items, and say whether quantities are counted, estimated, or still installed. Tie photos to a line item or pallet. If the nameplate is missing, provide clear exterior and mounting views so the uncertainty is visible.

• Manufacturer, complete catalog/model or type number, and visible serial or date code.
• Frame, trip rating, poles, voltage, frequency, and interrupting rating at its stated voltage.
• Trip-unit type, rating plug, settings, accessories, lugs, covers, and hardware included.
• Fixed, plug-in, I-Line, drawout, or other mounting details shown in photos, not assumed.
• Quantity by catalog number, condition, history, and whether loose, boxed, palletized, or installed.

Describe condition and keep the records with the lot

Use factual condition descriptions: sealed new surplus, unused open box, removed from service, used spare, installed, incomplete, heat-affected, wet-exposed, or unknown. Photograph cracked cases, broken handles, missing barriers, corrosion, altered terminals, discoloration, contamination, label loss, or electrical-event evidence. Do not say a breaker is tested, calibrated, listed, or safe for reuse without records supporting that claim.

Retain available purchase orders, packing lists, panel schedules, equipment lists, maintenance or trip-test records, commissioning documents, and decommissioning scope. They can distinguish a mixed lot from exact matching inventory and show service context. Redact customer names, addresses, passwords, proprietary process details, and sensitive drawings before sharing. NEMA cautions that fire and heat exposure can affect molded-case breaker mechanisms through contaminants and foreign material, so disclose such exposure rather than drawing a fitness conclusion from photographs.

Make safe de-energization and authorization the first step

A sale inquiry does not authorize electrical work. The facility owner or responsible employer must determine who is authorized to isolate, lock or tag out, verify de-energization, and remove the equipment. OSHA identifies a manually operated circuit breaker as an energy-isolating device and requires an authorized employee to verify isolation and de-energization before covered work begins. An off handle, control button, or assumption that downstream equipment is dead is not a substitute for the site energy-control procedure.

Do not open energized panels, access live line-side conductors, defeat interlocks, alter trip settings, or perform an improvised test for a buyer. Follow the facility’s written procedures and applicable electrical-safety requirements. If documentation or removal would require energized work, describe the breaker as installed and route any next step through authorized electrical personnel. Safety, operational continuity, and site authority take priority over inventory speed.

Plan freight and site access around the actual inventory

Single MCCBs may ship in cartons; larger lots, accessories, enclosures, and removed gear may need pallets, shrink wrap, labels, and a documented piece count. Segregate catalog numbers, protect handles and terminals, and keep accessories with their matching unit. Do not infer shipping weight from amp rating: weigh completed pallets or state that dimensions and weights remain pending.

For bulk or installed lots, report the real location in the facility, floor level, staging route, dock or grade-level access, forklift availability, pallet-jack path, truck restrictions, security check-in, required insurance or safety orientation, loading hours, and outage constraints. State whether units are disconnected, still mounted, or mixed with other assets. Transformer Buyers considers access, freight, documentation, condition, and quantity during each nationwide review; no pickup, timing, or transaction outcome is assumed before evaluation. Explore the circuit-breaker equipment guide and city directory through the related resources below.