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Master Lock

Master Lock Circuit Breaker Lockout, Tagout Breaker Box Lock for Standard Single and Double Toggles, 493B, 1 Count (Pack of 1)

    • Based on 1,292 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Nov 17
Order within 20 hours and 8 minutes
Available payment plans shown during checkout

Size: 1 Count (Pack of 1)


Style: Breaker Lockout


Features

  • Lockout tagout circuit breaker lockout is best used on standard height and tie-bar toggles typically found on 120 and 240 volt breakers; Best used as part of a comprehensive OSHA compliant lockout tagout safety program
  • 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
  • Durable construction with powder coated steel and reinforced polymer for operation in harsh environments
  • 5-1/8 in. (13 cm) long circuit breaker lockout with 1-3/16 in. (3 cm) height and 2-3/4 in. (7 cm) depth
  • Includes one lockout tagout circuit breaker lockout; Accepts all Master Lock and American Lock safety padlock shackles and lockout hasps (padlocks and hasps sold separately)

Description

Master Lock 493B Lockout Tagout Circuit Breaker Lockout, Standard Single and Double Toggles fits standard height and tie-bar toggles typically found on 120 and 240 volt 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 and red color with powder coated steel and reinforced polymer stands up in harsh environments. Compact circuit breaker lockout design is easy to carry and store.

Brand: Master Lock


Current Rating: 1 Amps


Voltage: 240 Volts


Product Dimensions: 2.76"D x 5.12"W x 1.18"H


Circuit Breaker Type: Standard


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 2.76 x 5.12 x 1.18 inches; 2.08 ounces


Item model number ‏ : ‎ 493B


Date First Available ‏ : ‎ May 25, 2017


Manufacturer ‏ : ‎ Master Lock


Country of Origin ‏ : ‎ China


Best Sellers Rank: #4,065 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #2 in Lockout & Tagout Devices


#2 in Lockout & Tagout Devices:


Customer Reviews: 4.6 4.6 out of 5 stars 1,292 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Nov 17

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • So Simple And Effective
Size: 1 Count (Pack of 1) Style: Breaker Lockout
I bought this breaker lock-out as a reminder to not turn this breaker on, unless you really need it. I use this on the 240V, 50 AMP, Electric Vehicle / Recreational Vehicle outlet that I installed under our breaker panel. Most of the time, this should be turned OFF, but on rare occassion it needs to be turned on. This Lock-out makes it really easy to remember to keep it turned Off when not needed and prevents people from turning it on by accident. The quality of construction is excellent and although I didn't need to use the fitment accessories that came with it, I appreciate that they were included. Nothing is as frustrating as not being able to finish a project beause of a fitment issue. Master Lock had this in mind and they have you covered. Great little product. I would definately buy it again. ... show more
Reviewed in the United States on October 6, 2023 by Anthony in AZ
    • Amazing product
Size: 1 Count (Pack of 1) Style: Breaker Lockout
This is simple to use and highly effective. For roughly $10, it gets the job done and then some. Locally I tried to find something like this and it was $50. It clamps onto the breaker switch (whether it is on or off) and then the swing arm further tightens it. IT then has a loop you can use a zip tie or a small padlock. It can be pried off (with significant effort) but what you are really trying to do is make it difficult to "accidentally" move the breaker from the position you want. ... show more
Reviewed in the United States on February 28, 2024 by Henry Wolford
    • Very pleased seems very adaptable
Size: 1 Count (Pack of 1) Style: Breaker Lockout
Review Image by R. Custer R. Custer
Review Image by R. Custer R. Custer
As I licensed electrician I have used a number of these. I think this may be the most adaptable of the lot. It comes with parts to modify it. The grip is adjustable. Works great and seems solid.
Reviewed in the United States on December 2, 2023 by R. Custer R. Custer
    • Great for lock out so no one flips switch while your working.
Size: 1 Count (Pack of 1) Style: Breaker Lockout
Works good on single breakers but some double breakers don't work so well. Make sure lock will work on your application.
Reviewed in the United States on December 6, 2023 by Chuck Newton
    • Good safety item
Size: 1 Count (Pack of 1) Style: Breaker Lockout
Using as a lockout when I need to run my generator. Fits and locks onto the breaker securely.
Reviewed in the United States on March 19, 2024 by david
    • Great lockout...easy to use
Size: 1 Count (Pack of 1) Style: Breaker Lockout
Functional and easy to install
Reviewed in the United States on March 15, 2024 by Ted Rock
    • Simple
Size: 1 Count (Pack of 1) Style: Breaker Lockout
Very sturdy and simple to tag out our breaker.
Reviewed in the United States on December 10, 2023 by Darryl Austin
    • Keeps me alive
Size: 1 Count (Pack of 1) Style: Breaker Lockout
This is a great breaker lock. It doesn't fall off. I can put my lock on it. It can still be ripped off, but there isn't one that can't be. I trust my life to this device. If you work on electric circuitry, you must have one of these.
Reviewed in the United States on March 28, 2024 by kevin zetts

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