Ignitions and Electrical› Wiring Components

Master Lock

LOCK

$37.54

SKU: M014 506D

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Master Lock 506D is a circuit breaker lockout set designed for electrical lockout and safety applications. This set features the patented Grip Tight™ design, which effectively locks out circuit breakers with a simple operation. It includes one 491B device for tall/wide breaker toggles and one 493B device for standard height and tie-bar toggles. The durable construction utilizes powder-coated steel and reinforced polymer, making it suitable for harsh environments.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandMaster Lock
Part NumberM014 506D

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy