Master Lock Grip Tight Circuit Breaker Lockout Set (Model 506) provides a compact, durable solution for locking out circuit breakers in 120 and 240V applications. The Grip Tight design adjusts with a thumb turn and closes a clamping handle for a secure grip on the toggle. Constructed of reinforced polymer and powder-coated steel for harsh environments, the set includes one breaker for 120V and one for 240V (Master Lock 491B and 493B). The devices accept standard safety padlocks and lockout hasp diameters. Product is red for high visibility and is easy to carry and store. Dimensions and weight: 3.3 x 5.1 x 1.25 inches; 5.61 ounces. Not discontinued.
| Materials & Construction | |
| Device Material | Polymer; Steel |
| Lockout Body Color | Red |
| Material | Polymer; Steel |
| Product Details | |
| Color | Red |
| Includes | Master Lock 491b Circuit Breaker Lockout; Master Lock 493b Circuit Breaker Lockout |
| Item model number | MLK506 |
| Lockout Type | Circuit Breaker Lockout Kit |
| Product Model | 506 |
| Quantity | 1 |
| Type | Circuit Breaker Lockout Set |
| Voltage | 120; 240 |
| Sizing & Dimensions | |
| Height | 1.25 inches |
| Length | 5.10 inches |
| Product Dimensions | 3.3 x 5.1 x 1.25 inches |
| Weight | 5.61 ounces |
| Width | 3.30 inches |
| Technical Specifications | |
| Is Discontinued By Manufacturer | No |
By signing up, you agree to receive emails from us. You can unsubscribe anytime.
Copyright @ 2026 BZ DEFENSE LLC. All rights reserved. Unauthorized use and/or duplication of this material without express and written permission is prohibited.