![[MASTER Lock] — 491B Circuit Breaker Lockout Device](https://img.prosourcemro.com/2026/05/3308036-1-2.jpg)
Door Locks & Keys
MASTER Lock
[MASTER Lock] — 491B Circuit Breaker Lockout Device
Family ID: 168-1237
The MASTER Lock 491B is a circuit breaker lockout device designed to prevent accidental re-energization of electrical panels during maintenance, sourced direct from Korea. Electricians and facility maintenance crews use this type of lockout device as part of LOTO (lockout/tagout) procedures to keep workers safe while servicing live electrical systems. Request a quote today for export-ready supply, competitive pricing, and reliable fulfillment through a KITA-registered Korean exporter.
1 product code available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| 168-1237 | 491B | MASTER Lock | 491B |
