![[MASTER Lock] — 493B Circuit Breaker Lockout Device](https://img.prosourcemro.com/2026/05/3308035-1-2.jpg)
Door Locks & Keys
MASTER Lock
[MASTER Lock] — 493B Circuit Breaker Lockout Device
Family ID: 168-1228
The MASTER Lock 493B Circuit Breaker Lockout Device is a safety lockout tool designed to prevent accidental re-energization of circuit breakers during maintenance or service, sourced direct from Korea. Electricians, maintenance technicians, and facility safety teams use circuit breaker lockout devices as part of LOTO (lockout/tagout) procedures to protect workers from unexpected electrical hazards while equipment is being serviced. Request a quote today for export-ready supply of the MASTER Lock 493B through ProSource MRO, a KITA-registered Korean exporter offering competitive pricing for bulk and ongoing industrial procurement.
1 product code available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| 168-1228 | 493B | MASTER Lock | 493B |
