Masterlock Grip Tight Circuit Breaker Lockout - Standard Single and Double Toggles - 493B
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Masterlock Grip Tight Circuit Breaker Lockout - Standard Single and Double Toggles - 493B
The Master Lock 493B Grip Tight(TM) Circuit Breaker Lockout is designed for industrial safety professionals needing reliable lockout/tagout solutions for standard height and tie-bar toggles on 120 and 240 volt breakers. This compact and durable device ensures secure circuit breaker isolation, enhancing workplace safety and compliance. Compatible with Master Lock and American Lock safety padlocks, it offers a versatile solution for electrical lockout applications.
Key features
- Patented Grip Tight(TM) design locks out circuit breakers with a simple thumb turn and clamping handle
- Fits standard height and tie-bar toggles commonly found on 120 and 240 volt breakers
- Accepts all American Lock® and Master Lock® safety padlocks and most lockout hasps
- Durable powder coated steel and reinforced polymer construction for harsh environments
- Compact size for easy carrying and storage on the jobsite
- Universal fit provides strong, secure grip on toggles
Ideal applications
- Electrical maintenance and repair work
- Industrial and commercial facility lockout/tagout procedures
- Jobsite safety compliance for electricians and safety managers
- Locking out circuit breakers during equipment servicing or installation
Why buyers choose this product
Buyers rely on the 493B for its effective locking mechanism that combines ease of use with strong clamping force, ensuring circuit breakers remain securely isolated. Its compatibility with major safety padlocks and rugged construction makes it a dependable choice for demanding industrial environments.
Specifications
| Specification | Details |
| Brand | Master Lock |
| Product number | 493B |
| Color | Red |
| Product type | Grip Tight Circuit Breaker Lockout |
| Compatibility | Standard height and tie-bar toggles on 120 and 240 volt breakers |
| Padlock compatibility | All American Lock® and Master Lock® safety padlocks, most lockout hasps |
| Construction | Powder coated steel and reinforced polymer |
Additional product details
The 493B lockout device features a patented clamping handle and thumb turn for quick adjustment and secure grip on circuit breaker toggles. Its compact design supports easy transport and storage, making it practical for on-site use and safety program implementation.
This lockout device is a reliable solution for securing circuit breakers in industrial and commercial electrical safety applications.
MFG Part #: 493B
| Product Type | Lockout Tagout |
|---|
Shipping
We Ship Internationally - We can ship to virtually any address in the world, with some restrictions on certain products.
Standard Delivery: Ground shipping typically delivers in approximately 5 business days from our Columbus, OH warehouse.
Expedited Options Available:
- Priority and Expedited handling speeds up processing
- Overnight shipping available (guaranteed) - must order by phone before 12pm EST M-F
- Some items ship "Manufacturer Direct" and cannot be expedited
Important: Inspect your delivery before signing! Note any damage on the shipping document.
Returns Policy
30-Day Return Window: Most new, unopened items can be returned within 30 days for a full refund.
Non-Returnable Items:
- Made-to-order fall protection products
- Used vacuums, respirators, gas monitors, or air scrubbers
- Calibration gas (hazardous material)
- PAPR and specialty respiratory items (non-stock)
Restocking Fee: 30% restocking fee or shipping costs apply if return is due to buyer error.
Refund Timeline: Expect refunds within 4 weeks, though many are processed faster.

