🔐 Lock it down, stand out — safety never looked this sharp!
The Master Lock 493B Grip Tight™ Circuit Breaker Lockout is a compact, hardened steel device designed for secure electrical lockouts on standard single and double toggle breakers. Measuring 13 x 7 x 3 cm, it supports up to 24 Amps and features a narrow profile for side-by-side installations. Trusted by over 1,200 users with a 4.6-star rating, it offers simple, reliable mounting and a 1-year warranty, making it an essential tool for professional-grade electrical safety.
| ASIN | B004J173I8 |
| Best Sellers Rank | 94,618 in DIY & Tools ( See Top 100 in DIY & Tools ) 91 in Circuit Breakers 30,445 in Hardware |
| Brand | Master Lock |
| Circuit Breaker Type | Standard |
| Country Of Origin | China |
| Current Rating | 24 Amps |
| Customer Reviews | 4.6 out of 5 stars 1,233 Reviews |
| Global Trade Identification Number | 00071649229725 |
| Included Components | Electrical Lockout Device |
| Item Dimensions D x W x H | 7D x 13W x 3H centimetres |
| Item Type Name | 493B Grip Tight™ Circuit Breaker Lockout |
| Item Weight | 0.05 Kilograms |
| Item height | 8.5 inches |
| Manufacturer | Master Lock |
| Model Number | 493 |
| Mounting Type | Panel Mount |
| Product Warranty | 1 year |
| UPC | 071649229725 |
| Unit Count | 1.0 Count |
| Voltage | 240 Volts |
S**S
Isolation lock off device
Required to lock off mob isolator. Better designed mcb with locking capability would be better
A**R
Sturdy
Good price to add to my kit
L**E
Quick and easy
Needed for MCCB’s
P**S
Not for MCB's
Whilst this seems to be able to get a very sturdy grip onto the switch of an MCB, due to the curve of the MCB this does not sit flush and as such gives enough leverage that it can be pulled off the MCB switch. I haven't marked it down as I don't feel this is designed for MCB's but for circuit breakers with flat switch surfaces. Just be aware when buying, NOT FOR CURVE FACED MCB's
H**L
Recommended
Easy to use and good quality
Trustpilot
2 weeks ago
2 months ago
