🔐 Lock in safety, unlock peace of mind.
The Master Lock 493B Grip Tight™ Circuit Breaker Lockout is a compact, hardened steel device designed for secure lockout of standard single and double toggle breakers up to 240 volts. Its slim profile allows side-by-side installations, making it an essential tool for professional electrical safety compliance.
| Manufacturer | Master Lock |
| Brand | Master Lock |
| Model | Electrical Lockout Device |
| Product Dimensions | 3.81 x 21.34 x 21.59 cm; 59.12 g |
| Item model number | 493 |
| Manufacturer part number | 493B |
| Voltage | 2.4E+2 Volts |
| Item Weight | 59.1 g |
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
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
L**E
Quick and easy
Needed for MCCB’s
H**L
Recommended
Easy to use and good quality
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