Apartment Panel Upgrade — Koreatown, Los Angeles (Units 101–114 & 201)
Location: 425 N Hobart Blvd & 400 N Serrano Ave, Los Angeles, CA 90004 • Completed: July–Aug 2025
Scope: Replace legacy Zinsco subpanels with new 125-amp panels, each fitted with a 40-amp main disconnect for overcurrent protection across multiple apartment units. Work included labeling, torque verification, GEC/bonding checks, AFCI/GFCI compliance review, and load balancing.
- Demolition & safe removal of obsolete Zinsco gear
- Installation of 125A rated subpanels with updated breakers
- Code-compliant bonding/grounding and conductor terminations
- Panel schedules, circuit labeling, and tenant communication
- Functional testing: polarity, continuity, and fault protection
- Final inspection & documentation for property management
Key Outcomes
- Improved safety & reliability for tenants
- Reduced nuisance trips via balanced loads
- Future-ready capacity for modern appliances & EV
- Clean, labeled panels for faster maintenance
Project Facts
- Panel Rating: 125A per unit
- Main Disconnect: 40A overcurrent device (per unit)
- Timeline: Phased to minimize tenant downtime
- Inspection Status: Final/Issued (per unit permits)
“Upgrading legacy Zinsco equipment is one of the highest-impact safety improvements a building can make. Our team executes clean, code-compliant installs with minimal disruption to residents.” — Kevin Alvarez, Owner
