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MUTCD Manual on Uniform Traffic Control Devices
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Lock-Out and Electrical
Master Lock 491B Grip Tight Circuit Breaker Lockout
Master Lock 491B Grip Tight Circuit Breaker Lockout, No need to lock out the entire panel. Compact design, Fits wide or tall breaker toggles typically found on hi-voltage/hi-amperage breakers
Master Lock 491B Grip Tight Circuit Breaker Lockout.
Grip Tight Circuit Breaker Lockout. Lock out electrical power at the source. Universal fit accommodates almost all styles of toggle circuit breakers in the off position
Circuit Breaker Lockout
The Master Lock No. 491B Grip Tight™ Circuit Breaker Lockout Device fits wide or tall breaker toggles typically found on hi-voltage/hi-amperage breakers. The innovative patented Grip Tight™ design effectively locks out circuit breakers with a simple thumb turn and then close clamping handle for a tight grip on the toggle. Device accepts all American Lock® and Master Lock® safety padlocks and most lockout hasps for full lockout. Durable construction stands up in harsh environments and compact design is easy to carry and store.
Circuit breaker lockouts allow you to lock out power at the source. You can quickly and easily install breaker lockout without locking out the entire panel. Compact in size works like a vise for superior holding power. Durable powder coated steel construction. Universal fit accommodates almost all toggle style circuit breakers.
Fits wide or tall breaker toggles typically found on hi-voltage/hi-amperage breakers
Innovative 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
Compact device is easy to carry and easy to store
Accepts all American Lock and Master Lock safety padlock shackles and lockout hasp diameters
Durable construction with powder coated steel and reinforced polymer for operation in harsh environments
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