About Plug Lockout---- A Complete Guide to Electrical Safety
What Is Plug Lockout?
A plug lockout is a safety device that physically blocks an electrical plug from being inserted into an outlet. It ensures that equipment remains de-energized during servicing, preventing unexpected startups.
When Is Plug Lockout Required?
According to OSHA 1910.147, plug lockout must be used when:
Servicing or repairing electrical equipment
Performing maintenance on machinery powered by cords
Cleaning or inspecting devices that could accidentally turn on
Following LOTO procedures for hazardous energy control
Types of Plug Lockout Devices
There are several types of plug lockouts, each suited for different applications:
1. Universal Plug Lockouts
Fits most standard plugs (NEMA 5-15, 5-20, etc.)
Adjustable clamps or straps for a secure fit
2. Right-Angle Plug Lockouts
Designed for tight spaces where cords bend at 90°
3. Specialty Plug Lockouts
For heavy-duty, industrial, or twist-lock plugs
4. Plug Lockout Boxes
Fully encloses the plug for extra protection
How to Use a Plug Lockout Device (Step-by-Step)
Identify the plug – Locate the power source and unplug the equipment.
Attach the lockout device – Secure it over the plug prongs.
Apply a padlock – Only authorized personnel should have the key.
Tag it – Add a Danger Tag with your name, date, and reason for lockout.
Verify isolation – Test that the equipment cannot be re-energized.
⚠ Never rely on just unplugging—always use a lockout!
Lita Lock, a China based manufacturer, since 2017, active in manufacturing safety padlocks, electrical lockout, valve lockout, lockout station, tags and other lockout & tagout for global partners.
To help customers compliance with OSHA Standard 29 CFR 1910.147, Lita Lock does not only offer design, production and final assembly, but also a complete lockout & tagout solution for various industries.
Lita Lock pursues the competitiveness on creative, quality control, technology and sustainable development. As the founder of Lita Lock, Iris Chen says: “Many things have changed, but one thing that has not—our original intention to start businesses: keeping workers safe.” Together, we make work environments safer.
Sales Manager: Iris Chen
Email: iris@litalock.com
Whatsapp: + 86 13165872593
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