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Square D® type QMB® switches

PCB stocks the Square D® type QMB® fusible panelboard switches from 30 to 800 amp. Switches are available in the Out of Production Series 1-4, D2 and more current E Series. All trademarks are owned by their respective companies.

Series 1-4 and D2 are Out of Production types which are typically characterized by the 4-digit catalog numbering system. Series type can be typically identified on the switch nameplate. Series 1-4 and D2 do not interchange with more current E Series switches.

Typical catalog numbering format: QMB3640 Series 1

Note: Series D2 follows more current Series E catalog numbering system, though not interchangeable with E Series switches.

Series E1, E2 and E3  are current series types which are typically characterized by the 3-digit catalog numbering system followed by a letter (W ot T). Series type can be typically identified on the switch nameplate.

Typical catalog numbering format: QMB364W Series E2

PCB offers New, Surplus and Quality Remanufactured types and can ship with minimal lead time.

Please contact sales for a stock check or call 1-800-755-8098.