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The Master Lock No. 506 Grip Tight™ Circuit Breaker Lockout combo pack includes one 491B and one 493 Grip Tight™ circuit breaker lockout. The innovative and patented Grip Tight design effectively locks out circuit breakers with a simple operation and the durable construction with powder coated steel and reinforced polymer stands up to harsh environments. Devices are compact and accept all American Lock® and Master Lock® safety padlock shackles and most lockout hasps.

  • Grip Tight™ Circuit Breaker Lockout
  • Fits virtually all circuit breakers you will find in a lockout situation
  • Includes one 491B and one 493 Grip Tight™ circuit breaker lockout device
  • Grip Tight™ circuit breakers work with simple thumb turn and clamping handle
  • Innovative patented Grip Tight™ design effectively locks out circuit breakers
  • Adjust to breaker with simple thumb turn and then close clamping handle for a tight grip on the toggle
  • Great strength with universal fit
  • 491B fits wide or tall breaker toggles typically found on hi-voltage/hi-amperage breakers
  • 493B fits standard height and tie-bar toggles typically found on 120 and 240 volt breakers
  • Compact lockout device is easy to carry and easy to store