Best Glass Circuit Breakers of 2025

The Bussmann 30 Amp Breaker is designed for easy installation, making it a convenient choice for users looking to upgrade their circuit protection. With package dimensions of 1.016 H x 9.398 L x 5.842 W centimetres, it fits well in various glass fuse panels. Weighing only 0.02 pounds, it is lightweight, allowing for effortless handling. Manufactured in Taiwan, this circuit breaker combines quality and efficiency, ensuring reliable performance in protecting your electrical systems.

The QWORK Lockout Device offers versatile protection by effectively preventing accidental switch-ons, ensuring safety during maintenance. Its universal design allows it to lock out nearly all miniature ISO/DIN circuit breakers worldwide, giving you peace of mind. Made from durable glass-filled nylon, it withstands the rigours of industrial use, making it a reliable choice for your needs. Additionally, its easy installation means you can set it up quickly using a screwdriver or the included dandy twisted screw, accommodating padlock shackles up to 1/2" in diameter.

The ABB Ms325 Locking System is designed for easy installation without the need for any tools, providing a hassle-free setup. Its low thickness ensures that your panel door can be closed securely, enhancing safety. The system features a safety lock, giving you peace of mind that your circuit breaker is protected. Made from dielectric glass reinforced nylon, it is both durable and effective, making it a reliable choice for your electrical needs.

The SEIWEI Circuit Breaker Lockout is made from high-quality glass-filled nylon, ensuring durability and resistance to temperature extremes, from -57 °C to 177 °C. This universal safety device can lock nearly all miniature ISO/DIN circuit breakers worldwide, providing peace of mind. With its simple application, you can easily lock out circuit breakers with a maximum diameter of 7mm without needing extra tools. The installation process is tool-free, requiring just one button press, making it incredibly user-friendly.

The Milageto Circuit Breaker Lockouts offer a practical solution for safely isolating miniature circuit breakers. With a maximum diameter of 7mm, these universal devices fit virtually all ISO/DIN circuit breakers, eliminating the hassle of manual lockouts. They effectively prevent accidental switch-on, helping to minimise the risk of injuries. Made from sturdy glass-filled nylon, they ensure durability and reliability during use, giving you peace of mind while working with electrical systems.

The Elprico Circuit Breaker Lock is designed to enhance safety during maintenance work. With its humanised button design, it securely locks the circuit breaker, preventing any accidental operation. This lock is versatile and can be fitted to various miniature circuit breakers, ensuring compatibility across different systems. Made from industrial-grade nylon material, it offers complete insulation and strong wear resistance, making it durable for frequent use. Furthermore, this tool allows you to lock the circuit breaker in both the "open" and "close" states, providing flexibility for maintenance management.

The Tooloflife MCB Lockout is a versatile safety device designed to secure a wide range of miniature ISO/DIN circuit breakers. With three types available, including the MCPO, MCPI, and MCPOW, you are sure to find the right fit for your needs. Made from sturdy glass-filled nylon, this lockout device is built to last, providing reliable service over time. Its simple application allows you to effectively lock out MCBs with a maximum diameter of 7mm without the need for additional tools, making it incredibly convenient for ensuring safety at work.

The Oumefar Circuit Breaker Lock offers robust performance with its industrial glass filled nylon construction, ensuring complete insulation and strong wear resistance. Its humanised button design provides a reliable lock, preventing any accidental misoperation that could lead to safety hazards. The device is versatile, compatible with all types of miniature circuit breakers, which means you can use it across various applications. Additionally, it allows locking in both "open" and "close" states, making it easier for you to manage maintenance tasks effectively.