Master Lock Device M/Lock Lockout Electrical Plug Cover Large 488, Red

Amazon

Outward/inward rotation allows for easier application and storage Surrounds the electrical plug and protects against accidental reconnection. For electrical plug sizes up to 75mm in diameter x 152mm with cord diameter up to 19mm (Most 240 and many 550-volt plugs). Patented rotating design allows for easier installation in confined space applications Complete with high visibility permanent safety labels (English, French & Spanish) Tough, lightweight, dielectric thermoplastic bodies withstand chemicals

Zoro Tools

These Master Lock Lockout Electrical Plug Covers surround the electrical plug and prevent accidental reconnection. Rotating design enables installation in confined spaces. Zenex construction withstands chemicals and extreme temperatures ranging from -57C to +177C Complete with high-visibility safety label: DANGER - DO NOT REMOVE. Padlock is not supplied.

ManoMano

This large Lockout Electrical Plug Cover is suitable for 240 to 550 volt electrical plugs.