General Electric THN3366R Disconnect Switch (Non-Fusible) - Essential Electric Supply
General Electric THN3366R Disconnect Switch (Non-Fusible) - Essential Electric Supply

General Electric THN3366R - Non-Fusible Disconnect Switch 600A 600V (200kA AIC, NEMA 3R)

General Electric
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⚡ Product Branding Information

Some General Electric products may now ship with ABB branding due to ABB’s acquisition of GE Industrial Solutions.

Depending on the manufacturing date or production batch, the item or packaging may display either GE or ABB branding.

Unless otherwise noted, these products are considered equivalent in form, fit, function, and specifications.

Please contact our team before placing your order if brand labeling or packaging is critical for your application.

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The General Electric THN3366R is a heavy-duty disconnect switch engineered for reliable circuit isolation and protection in industrial power distribution systems. This 600VAC-rated switch handles up to 600A continuous current across its three-pole, single-configuration design, featuring a robust construction with a substantial 135 lb weight for durability in demanding environments. It complies with UL standards and carries a NEMA 3R rating for outdoor use, providing protection against rain and sleet. The switch is designed for integration with LAP compatible frames and offers a high 200kA interrupting capacity at 600V, making it suitable for main service disconnects, motor control centers, and industrial machinery power isolation.

Key Features & Specifications
  • Type: Non-Fusible Disconnect Switch, Spec-Setter Family, THN Type
  • Voltage Rating: 600V AC
  • Current Rating: 600A
  • Configuration: Single
  • Poles: 3
  • Phase: 3
  • AIC Rating: 200kA @ 600V
  • NEMA Rating: NEMA 3R
  • Certification: UL Listed
  • Compatible Frames: LAP
  • Weight: 135 lb
  • Switch Style: Non-Fusible
  • Item Subcategory: Disconnect


Product Identification
  • UPC: 783164011395
  • GTIN: 00786679913659