Square D & Schneider Switchgear Buyers
Surplus Valve Buyer buys surplus electrical equipment from sellers with Square D or Schneider switchgear to sell, subject to review of each lot. Discuss unused project equipment, retired lineups or separately stored switchgear breakers with our Houston-based independent surplus buyer. Identifying Power-Zone 4, Masterclad or PremSeT correctly helps establish what you have before discussing a possible purchase. We are not Schneider Electric or an OEM agent.
Start with the family and lot description
When you want to sell Square D switchgear, begin with the manufacturer's product name rather than a broad description such as electrical cabinets. Include the number of sections, approximate age and whether you are selling the entire lineup or selected equipment. Explain whether the surplus resulted from a canceled installation, replacement project or completed shutdown.
An inventory list or existing one-line diagram can help distinguish incoming, tie and feeder sections. If records are incomplete, say what is known and what still needs confirmation. A clear description is more useful than assigning every enclosure the same model or assuming that adjacent sections have identical ratings.
Power-Zone 4 low-voltage drawout switchgear
Power-Zone 4 is low-voltage, metal-enclosed drawout switchgear. Schneider's catalog identifies low-voltage power circuit breakers and lists UL 1558 among its assembly standards. For a surplus lineup, report its exact version and the installed breaker models. MasterPacT identification matters, but the breaker name alone does not identify the complete assembly.
The catalog includes voltage options through 635 Vac and continuous bus ratings from 1600 to 6000 A, with configuration restrictions. Its listed limits for arc-resistant sections and front-accessible sections are 5000 A and 3200 A respectively. These are manufacturer reference ranges, not automatic purchasing criteria or a promise that every voltage and current combination exists.
Masterclad medium-voltage metal-clad equipment
Masterclad belongs to Schneider's medium-voltage metal-clad switchgear family. The official product page describes air-insulated drawout equipment with VR vacuum circuit breakers. Do not describe it as Power-Zone 4 simply because both families use removable breakers. Their assembly construction and voltage classes are different, so the family identification should stay attached to the lot.
Schneider lists family current ranges of 1200 to 4000 A at 5/15 kV and 1200 to 2000 A at 27 kV. For selling purposes, use the actual assembly rating and breaker identification rather than selecting a catalog maximum. Include whether your equipment has indoor or outdoor enclosures and whether breakers remain associated with their original cells.
PremSeT shielded solid-insulated switchgear
PremSeT uses a shielded solid insulation system and compact vacuum circuit breaker equipment. Schneider identifies it as metal-enclosed switchgear under IEEE C37.20.3, rather than presenting it as the same air-insulated metal-clad construction as Masterclad. Sellers should retain the PremSeT name and the individual unit designations in their inventory.
The manufacturer's 15 kV technical table lists main-bus ratings of 600 and 1200 A, but individual circuit units have their own current ratings. Identify the bus rating separately from each unit. The same table distinguishes 95 kV BIL, 25 kA interrupting current and 25 kA short-time withstand for two seconds. These figures describe different capabilities, not interchangeable labels.
Keep QED switchboards correctly classified
Square D branding does not make every distribution assembly switchgear. Schneider calls QED-2 and QED-6 switchboards. If your records identify either family, describe the equipment as a switchboard rather than relabeling it to match a switchgear search. Accurate terminology prevents the wrong technical assumptions when a buyer reviews the lot.
If a facility inventory mixes QED equipment with Power-Zone 4 or medium-voltage gear, separate those entries and retain their original model descriptions. Do not replace the manufacturer's classification with an informal site nickname. This page focuses on switchgear; mention any different assembly type clearly when contacting us so its eligibility can be discussed separately.
Read ratings without combining unlike numbers
Keep nominal system voltage separate from the assembly's rated maximum voltage. A 480 V installation description and a 635 Vac catalog limit do not mean the same thing. Continuous bus amperes describe the assembly bus; breaker frame, sensor and trip information describe the installed protective device. Report those fields individually instead of calling them all the amperage.
Fault ratings also need their full labels. A short-circuit rating in kA is not a continuous current rating, and short-time withstand includes a duration. BIL means basic impulse insulation level and is an insulation withstand measure, not an operating voltage. Existing nameplates and manufacturer documents should resolve these distinctions before anyone assumes suitability for another installation.
Describe complete lineups and separate breakers
Tell us whether your sale includes the complete lineup, individual sections or switchgear breakers stored separately. For a lineup, explain which breakers and associated controls are included and whether any sections have already been removed. For loose breakers, list the model and quantity without assuming that a matching brand guarantees compatibility with another cell.
Keep existing drawings and equipment identifiers connected to the relevant sections. If spare breakers came from several installations, distinguish their origins where records allow. This avoids representing a mixed group as one documented assembly. Purchase discussions can then address the actual scope of the lot rather than an incomplete description of a complete system.
Disclose condition and available records
Separate unused surplus from equipment removed after service. Explain storage conditions, visible damage, known missing components and any changes reported in your records. If an enclosure has been exposed to water or a breaker has an uncertain history, disclose it. Do not describe equipment as tested or ready for service unless supporting documentation actually exists.
Existing maintenance reports, drawings and identification records may help explain the lot, but they do not guarantee acceptance or establish a resale price. Tell us which documents are available and which are missing. Avoid commissioning new tests solely to begin an inquiry; we can discuss the information already available and confirm what further review your particular equipment needs.
Discuss safe release and purchase terms
You may contact us before a planned shutdown, but do not open energized equipment or perform live tests to obtain selling information. Use existing records and safely accessible identification. Decommissioning, isolation and any electrical work must be handled by qualified personnel under the facility's applicable safety procedures. A buying inquiry is not permission to disconnect equipment.
Call (951)403-5738 or email industrial832@gmail.com with the family, location, ownership status and expected release date. Surplus Valve Buyer is an independent Houston-based buyer, not an OEM representative. Acceptance, inspection needs, removal responsibilities, transportation and payment terms must be confirmed for the lot. Do not assume freight coverage or arrange removal before the agreed responsibilities are clear.
