🔐 Lock it tight, work with confidence — never compromise on safety!
The Master Lock 491B Grip Tight Circuit Breaker Lockout is a compact, durable device designed to securely lock out hi-voltage and hi-amperage circuit breakers. Featuring a patented thumb-turn and clamping handle mechanism, it fits wide or tall breaker toggles and accepts all major safety padlocks. Built with a hardened steel body and chemical-resistant Zenex composite, it withstands extreme temperatures and harsh environments, making it an essential tool for professional electrical safety compliance.
| ASIN | B004J173HY |
| Best Sellers Rank | #206,494 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #498 in Keyed Padlocks |
| Brand Name | Master Lock |
| Circuit Breaker Type | Standard |
| Current Rating | 2 Amps |
| Customer Reviews | 4.6 4.6 out of 5 stars (505) |
| Global Trade Identification Number | 00071649229718, 00712760524589 |
| Included Components | industrial-warning-signs |
| Item Dimensions D x W x H | 51D x 25W x 25H millimeters |
| Item Type Name | 491B Grip Tight™ Circuit Breaker Lockout |
| Item Weight | 181 g |
| Manufacturer | National Marker Corporation |
| Model | 491B |
| Mounting Type | Snap-In Mount |
| Number of Items | 1 |
| Number of Poles | 1 |
| Part Number | 491B |
| UPC | 712760524589 789164007574 094704338163 071649229718 |
| Unit Count | 1 Count |
| Voltage | 120 Volts |
Trustpilot
2 weeks ago
3 weeks ago