Electrical Contracting Products Product Guide

Grip Tight Circuit Breaker Lockouts

Master Lock's Grip Tight Circuit Breaker Lockouts offer a secure lock on circuit breakers. Using a patent pending locking mechanism, just finger tighten the jaws against the circuit breaker toggle. When you close the handle the jaws tighten further, gripping the toggle securely for effective lockout of the circuit. Two simple devices fit over 95 percent of the circuit breakers used in North America. The 493B is designed to fit over standard height toggles found on single and double pole breakers. The 491B is designed for higher voltage breakers that have toggles that are tall, wide or thick.