MASTER LOCK Circuit Breaker Lockout: Clamp-On
The MASTER LOCK Clamp-On Circuit Breaker Lockout (MPN 493B) is designed for 120/240V AC voltage and fits standard single toggle switches. It does not include a cable tie slot. 3G Electric interprets your…
SKU 3G-OTH-556439
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Product Description
The MASTER LOCK Clamp-On Circuit Breaker Lockout (MPN 493B) is designed for 120/240V AC voltage and fits standard single toggle switches. It does not include a cable tie slot. 3G Electric interprets your lockout/tagout needs, sources the right safety equipment, and supports your facility across 14 industrial departments.
Frequently Asked Questions
What is the MASTER LOCK 493B circuit breaker lockout used for?
The MASTER LOCK 493B clamp-on lockout secures standard single toggle switches during lockout/tagout procedures on 120/240V AC circuits. It prevents accidental re-energization, supporting electrical safety in industrial facilities. 3G Electric sources this safety device and delivers it worldwide.
What are the specifications of the MASTER LOCK 493B?
The MASTER LOCK 493B is a clamp-on circuit breaker lockout rated for 120/240V AC voltage. It is designed for use with standard single toggle switches and does not include a cable tie slot. The manufacturer part number is 493B. 3G Electric supplies this MASTER LOCK safety device globally.
Where to buy the MASTER LOCK 493B worldwide?
3G Electric supplies the MASTER LOCK 493B clamp-on circuit breaker lockout to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us to order this lockout/tagout device for 120/240V AC standard single toggle switches.
How to install the MASTER LOCK 493B lockout?
To install the MASTER LOCK 493B, clamp it onto the standard single toggle switch handle until it snaps into place. Ensure the circuit is de-energized before applying the lockout. Attach a padlock through the lockout body to secure it. 3G Electric provides this safety device for worldwide delivery.
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3G Electric supplies MASTER LOCK clamp-on circuit breaker lockouts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.








