Siemens B310 - 10 A, 3-Pole Bolt-On Circuit Breaker | AmpState

Introducing the Siemens B310 - 10A, 3-Pole Bolt-On Circuit Breaker, a trusted protection solution from Siemens available through AmpState. Designed to deliver reliable branch circuit overcurrent and short-circuit protection, it’s built to perform in a variety of panel environments where dependable downtime-free operation matters.

Overview

Engineered as a bolt-on molded case circuit breaker, the B310 provides precise, repeatable protection for your electrical distribution. Its three-pole design supports balanced protection across three phases, making it suitable for a wide range of installations in residential, commercial, and light industrial settings.

Key features

• Secure bolt-on mounting — a rigid, vibration-resistant bus connection that helps maintain a solid electrical bond and reduces wear over time.
• Thermal-magnetic trip unit — combines thermal and magnetic sensing to deliver stable, repeatable protection performance against both overloads and short circuits.
• OEM-compatible — designed to work with matching OEM load centers and panelboards for streamlined replacement and upgrades.
• Versatile applications — suitable for residential, commercial, and light industrial deployments where dependable branch circuit protection is essential.

Applications and compatibility

The Siemens B310 is ideal for protecting individual branch circuits within panelboards and load centers. Its bolt-on mounting simplifies installation in retrofit projects and new builds alike, while its compatibility with matching OEM enclosures ensures a cohesive, reliable protection system across your distribution array.

Technical specifications

• Manufacturer: Siemens
• Part Number: B310
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 10A
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Why choose the Siemens B310

When you’re upgrading or expanding a distribution system, the B310 delivers predictable protection with a design that prioritizes mechanical stability and electrical reliability. The bolt-on mounting creates a solid, vibration-resistant connection that stands up to everyday panel activity, while the thermal-magnetic trip ensures a quick, accurate response to dangerous fault conditions. For professionals and DIY installers alike, this breaker provides a straightforward, dependable path to safer, more resilient electrical networks.

Whether you’re protecting a single critical circuit or expanding an existing panelboard, the Siemens B310 10A 3-Pole Bolt-On Circuit Breaker offers precise protection, long-term durability, and seamless compatibility with your Siemens-compatible load centers and panelboards.