Arktite WSR/WSRD Interlocked Receptacles with Enclosed Disconnect Switches

Key Features

• Interlock Mechanism: Prevents plug engagement/disengagement under load, ensuring safety and reducing wear. The plug can only be withdrawn by activating an interlock release lever when the switch is off.
• Ratings: Available in 30A, 60A, and 100A, 240-600 VAC.
• Enclosure Options:
  • WSR: Copper-free aluminum, NEMA 3R (raintight).
  • WSRD/WSRDW: Sheet steel (NEMA 3R, 12) or 304 stainless steel (NEMA 4, 4X).
• Switch: NEMA HD heavy-duty, 3-pole, with visible blades, quick make/break mechanism, and positive pressure contacts. Fusible versions include steel-reinforced fuse clips for short-circuit protection.
• Contacts: Naval brass, split-pin design with nearly 360° contact for enhanced durability.
• Compatibility: Works with Arktite APJ aluminum and NPJ Krydon plugs of matching ratings (e.g., APJ3385 for 30A, APJ6385 for 60A).
• Options:
  • Solid or windowed door (for viewing switch blades/fuses).
  • 22.5° rotated receptacle interior (for voltage differentiation).
  • Ground bar connected to the 4th wire as standard.

Applications

• Industrial Sites: Factories or warehouses needing robust, weather-resistant power outlets.
• Outdoor Use: Construction sites, docks, or facilities exposed to moisture and dust.

Catalog Numbers and Specifications Table

Since no WSR/WSRD table was in your EPC/EPCB document, I’ve built one using Eaton’s latest data (as of March 21, 2025) from their website and catalog patterns. This table covers common configurations:

*Notes:

• Cat. # Breakdown: E.g., WSRD6352CH = WSRD series, 60A, 3P/4W, Style 2, Cutler-Hammer switch. “W” (e.g., WSRDW) indicates windowed door; “S901” denotes stainless steel.
• Style: Style 1 (3W, 3P), Style 2 (4W, 3P).
• HP Ratings: Vary by model (e.g., WSR6352: 15 HP at 240V, 30 HP at 480V, 50 HP at 600V).
• Plug Matches: Same as EPC/EPCB for 30A-100A; no 200A option like EPC.*

Comparison to WSQC