Best Lockout Devices for Electrical Plugs for Safer Work Environments
Lockout devices for electrical plugs protect workers by preventing accidental energization during maintenance. This guide highlights five reliable options designed to fit standard US 2- and 3-prong plugs, with durable materials and OSHA-aligned features. Each product section explains key benefits and how it supports lockout/tagout procedures, helping teams choose the right solution for industrial, construction, or home use.
Summary of chosen products
| Product | Brand | Key Benefit | Fit |
|---|---|---|---|
| QWORK Electrical Cord Plug Lockout Device | QWORK | Keyed differently with a key-retaining system for secure locking | 2 & 3 prongs |
| TRADESAFE Lockout Tagout Electric Plug Lock | TRADESAFE | High-durability, accommodates two plugs, heavy industrial use | 1–3 inch plugs |
| TRADESAFE Plug Lock for Lockout Tagout | TRADESAFE | Versatile, durable, OSHA-compliant design | Up to 3-inch diameter plugs |
| TOKCKYBL Electrical Cord Lockout Device (2 Pack) | TOKCKYBL | Key-retaining safety with universal compatibility | 2–3 prong plugs |
| Zing 7100 RecycLockout | ZING | USA-made recycled plastic, bilingual label | Up to 3 inches diameter |
QWORK Electrical Cord Plug Lockout Device

The QWORK lockout device is designed for two-prong plugs and includes a 2-pack with keyed-differently configurations. Its plastic ABS body provides insulation and resistance to deformation, heat, wear, and impact. The key-retaining safety feature ensures the plug remains locked until the correct key is used, reducing the risk of accidental removal during maintenance. Suitable for polarized and non-polarized plugs, it works with or without ground, offering a straightforward option for both small shop and industrial environments.
TRADESAFE Lockout Tagout Electric Plug Lock

This 2-pack from TRADESAFE is built for industrial use, locking out two plugs simultaneously with a robust, non-conductive polypropylene body. It features a hexagonal design with four locking holes and a “Danger Locked Out Do Not Remove” label for clear warning. The locks prevent unauthorized energization and are designed to withstand tampering and high-force environments. It’s suitable for plugs up to a 3-inch diameter, aligning with common heavy-duty electrical lockout requirements.
TRADESAFE Plug Lock for Lockout Tagout

This large 220-volt plug lock from TRADESAFE is designed to secure plugs with up to 3 inches in diameter and two cord holes for simultaneous lockout. Made from rugged non-conductive polypropylene, it endures force and tampering typical of industrial settings. The kit includes a red plug cover and four LOTO holes, providing a reliable solution for isolating energy sources during maintenance and ensuring that authorized access is controlled.
TOKCKYBL Electrical Cord Lockout Device

The TOKCKYBL lockout set uses a key-retaining safety system, requiring the key to unlock, which helps prevent misplacement and accidental energization. It fits all US standard 2- and 3-prong plugs, whether polarized or grounded. Constructed from durable nylon, the device resists heat, impact, and wear, yielding reliable long-term performance in harsh environments. It is especially suitable for home, office, or light construction settings where simple, secure lockout is needed.
Zing Green Products 7100 RecycLockout

The Zing RecycLockout uses USA-made recycled plastic, designed to fit plugs up to 3 inches in diameter with a cord of up to 1.25 inches. It features secure lids with anti-pry tabs and three locking holes to enable multi-authorization lockouts. Its bilingual warning label helps ensure clear safety communication in diverse settings, making it a practical choice for facilities prioritizing sustainability alongside robust lockout capability.
SATTRON Tagout Lockout Plug Lock Device

This 2-piece SET from SATTRON includes two plug locks and two safety padlocks for lockout/tagout procedures. Built to meet OSHA compliance, the kit emphasizes safety first by blocking energization during maintenance. Its industrial-grade construction ensures durability in harsh environments, making it suitable for commercial facilities, manufacturing, and maintenance operations that require solid lockout integrity.
WUWEOT 3 Pack Plug Lockout

The WUWEOT 3-pack supplies three red lockout plugs designed to secure two plugs at once, with a large locking body and two cord holes. The industrial-grade, nonconductive polypropylene resists heat and tampering, suitable for heavy-duty workplace use. The included label and hexagonal body design provide clear visual cues and a sturdy locking mechanism for safe maintenance work.
Anskyloe Plug Lock

The Anskyloe lockout device provides a universal approach for 2- and 3-prong plugs, featuring a straightforward setup for lockout/tagout programs in homes or offices. Made from tough ABS, its lockout plug resists heat, impact, and wear while remaining non-conductive. The set includes two keys per lock, helping ensure proper access control during maintenance and preventing inadvertent energization.
Buying Guide: Key Purchase Considerations
- Compatibility: Verify plug diameter, prong type (2- or 3-prong), and ground configuration to ensure a secure fit.
- Material and Durability: Nonconductive plastics and nylon offer insulation and resistance to heat, impact, and wear suitable for harsh environments.
- Key Management: Consider key-retaining designs to prevent misplacement and ensure that only authorized personnel can unlock.
- Lockout Scope: Decide whether you need single-plug or multi-plug locking capability and how many locking holes support multi-person authorization.
- Compliance and Labeling: OSHA-compliant devices with clear warning labels help communicate danger and reinforce safety protocols.
- Longevity and Environment: For industrial settings, choose devices rated for high force, tampering resistance, and broad temperature ranges.
- Cost and Availability: Balance budget with durability and ease of use, and consider kit options that include multiple components for efficiency.
When selecting lockout devices for electrical plugs, organizations should align choices with their risk assessments, maintenance practices, and the size of their electrical systems. Considering material durability, compatibility with existing cords, and clear labeling will help maintain safe, compliant lockout/tagout operations across varied environments.