Eaton BR315ST - Circuit Breaker | AmpState

The Eaton BR315ST molded case circuit breaker is engineered to deliver dependable branch-circuit overcurrent and short-circuit protection in panelboards and load centers. Its compact molded-case design optimizes panel space, letting you fit more circuits without sacrificing protection.

The integrated thermal-magnetic trip unit provides stable, repeatable protection across a wide range of electrical loads. This means fewer nuisance trips during normal operation, and fast, reliable interruption during fault conditions—keeping wiring, devices, and occupancy safer.

Designed for seamless integration, the BR315ST is compatible with matching OEM load centers and panelboards. This ensures consistent electrical coordination, straightforward installation, and long-term reliability in your electrical distribution system.

Why choose the BR315ST for your projects

• Efficient panel real estate: A compact molded-case footprint helps maximize usable space inside panelboards and load centers.
• Predictable protection: Thermal-magnetic trip technology delivers dependable response to both overloads and short circuits.
• OEM-compatible: Built to align with corresponding OEM hardware for a cohesive, field-ready installation.
• Versatile applications: Suitable for residential, commercial, and light industrial environments where reliable branch circuit protection is essential.

How it works — The device monitors current with a thermal element for persistent overcurrent conditions and a magnetic element for rapid response to short circuits. When a fault is detected, the breaker trips to interrupt current flow, protecting conductors and connected loads from excessive current.

Technical specifications — Manufacturer: Eaton • Part Number: BR315ST • Type: Thermal-magnetic molded case circuit breaker • Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases —

• Residential subpanels and main distribution panels needing reliable branch protection
• Commercial panelboards in offices, retail spaces, and small business environments
• Light industrial panels and equipment rooms where space-efficient protection is a priority