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Masterlock 491B/493B Grip Tight Circuit Breaker Lockout w/ Type Choice

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ML-491-493-B
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Masterlock 491B/493B Grip Tight Circuit Breaker Lockout w/ Type Choice

Note: there are two versions of this product available. 491B is suitable for wide/tall breaker toggles and 493B is suitable for standard breaker toggles.

The easy way to lockout a circuit breaker - just apply this lockout, clip in place and attach a padlock to ensure that a breaker's switch can't be used during essential maintenance or other applications when a breaker must be powered down.

Each of these lockouts is narrow, allowing them to be attached on side-by-side breakers. They're made of hardened steel for use in demanding environments, and are certified for use in hazardous areas including explosive zone 2.

Want to see how easy these lockouts are to install? This video shows exactly how they work!

Key Features

  • Two versions for use with wide/tall and standard breakers
  • Innovative patented Grip Tight design ensures that the breaker is fully secured
  • Adjust to breaker size with simple thumb turn before closing the clamping handle to fix in place
  • Compact for easy transportation
  • Single hole for attachment of a lock
  • Constructed from powder-coated steel and reinforced polymer

Lockout Dimensions

Model Width Length Depth
491B 32mm 86mm 26mm
493B 19mm 72mm 19mm
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Additional Information
SKU ML-491-493-B
Manufacturer Part Code 493B
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