Industrial QSF2053 Panelboard Switch

SYLVANIA QSF2053 is a three-pole, 200-amp, 600-volt fusible panelboard switch designed for commercial and industrial distribution panels, providing a manual disconnect with fusible protection for power distribution. The model is cataloged in the QSF family with 3P, 200A, 600V ratings, and variants such as QSF2053B, QSF2053C, and QSF2053TC referenced by distributors and retailers. This panelboard switch is intended for incorporation into fusible-panelboard installations where isolation and protective interlocks are required, and it appears in several supplier listings as a 200A, 600V, 3P fusible panelboard switch under the Sylvania brand. Typical applications include main or feeder disconnects in commercial or light industrial panelboards, enabling safe maintenance shutdowns without altering wiring configurations; exact mounting style and handle/door configurations can vary by variant and supplier, so verifying the specific model page is advised before purchase.