Master Grip Circuit Breaker Lockout is a dependable and OSHA-compliant solution designed to isolate energy sources quickly and securely. Whether you’re working with single or double-pole circuit breakers, this versatile device provides a universal fit for enhanced lockout tagout (LOTO) procedures.
Thanks to its snap-on design, it installs easily on most breaker toggles without the need for tools. Its narrow profile also enables side-by-side breaker lockouts without interference — making it ideal for crowded panels or multi-circuit applications.
Key Features and Benefits
- Universal Compatibility: Fits most single and double toggle breaker designs
- Tool-Free Snap-On Application: Simplifies installation and removal
- Narrow Profile: Allows adjacent breakers to be locked out without obstruction
- Built to Last: Made from powder-coated steel and reinforced polymer for resistance against harsh industrial environments
- Compliance Ready: Meets OSHA 29 CFR 1910.147 lockout/tagout standards
- RoHS Compliant: Adheres to Directive 2011/65/EU and 2015/863 for environmental safety
- No Prop 65 Warning Required: Safe for use in California workplaces
- Secure Locking: Prevents accidental breaker reactivation during servicing or maintenance
- Lightweight and Compact: Easy to carry and store on-site
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | Master Grip Circuit Breaker Lockout |
| Manufacturer | Master Lock |
| Part Number | 493B |
| Material | Powder-Coated Steel, Reinforced Polymer |
| Color | Black on Red |
| Lockout Type | Single/Double Toggle |
| Mounting Style | Snap-On |
| Packaging | Each |
| Country of Origin | China |
| HTS Code | 7326.90.8688 |
| ECCN | EAR99 |
| RoHS Compliance | Yes (Directive 2011/65/EU & 2015/863) |
| OSHA Compliance | 29 CFR 1910.147 |
| California Prop 65 | No Warning Required |
Why Choose the Master Lock 493B Circuit Breaker Lockout?
Safety managers and maintenance teams choose the Master Lock 493B for several reasons. First, its durability in high-demand environments reduces the risk of failure. Second, its ease of use supports faster lockout implementation, which minimizes downtime during repairs or inspections.
Additionally, because this device accommodates a wide variety of breaker styles, it’s ideal for facilities with mixed equipment brands or panel designs. Its narrow body ensures that even tightly spaced breakers can be locked out without compromise.
Ideal Applications
This circuit breaker lockout device is suitable for:
- Manufacturing facilities
- Commercial buildings
- Industrial electrical panels
- Maintenance and repair teams
- Contractor toolkits
- Construction job sites
Use it to lock out energy sources during:
- Equipment servicing
- Electrical panel maintenance
- Circuit testing and repair
- Scheduled shutdowns
Final Thoughts
The Master Grip Circuit Breaker Lockout delivers robust protection, universal compatibility, and OSHA compliance — all in a compact and easy-to-use form factor. By choosing the Master Lock 493B, you’re not only complying with safety standards but also reinforcing a culture of accountability and accident prevention.
