Siemens B350HH - 50 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Siemens B350HH 50A, 240V, 3-Pole Bolt-On Molded Case Circuit Breaker is built to deliver dependable branch circuit protection in panelboards and load centers. The bolt-on mounting provides a rigid, vibration-resistant bus connection, helping maintain a secure, long-term electrical connection even in tough installation environments.

• Key features:
  • Bolt-on mounting for a sturdy, vibration-resistant bus connection
  • Thermal-magnetic trip unit for stable, repeatable protection against overloads and short circuits
  • 3-pole, 50A, 240V configuration ideal for 3-phase panel setups
  • Designed to be compatible with matching OEM load centers and panelboards
  • Suitable for residential, commercial, and light industrial applications

What problems does this breaker solve? It provides reliable overcurrent and short-circuit protection tailored to panelboard layouts that require a bolt-on molded case solution. The thermal-magnetic trip mechanism minimizes nuisance trips by responding appropriately to different fault currents, while the rugged bolt-on design helps preserve electrical integrity in vibration-prone installations.

Ideal applications and who benefits most:

• Electricians upgrading or replacing breakers in Siemens-compatible panels in homes, offices, retail spaces, and small industrial environments
• New installations that demand a robust 3-pole, 50A protection scheme for 240V circuits
• Subpanel feeders and multi-wire branch circuits in light commercial or industrial settings

Technical snapshot:

• Manufacturer: Siemens
• Part number: B350HH
• Type: Thermal-magnetic molded case circuit breaker (MCCB)
• Amperage rating: 50A
• Voltage rating: 240V
• Number of poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Compared to alternatives that rely on different mounting styles, the B350HH’s bolt-on design reduces the chances of loose connections in demanding environments, while the integrated thermal-magnetic trip unit delivers predictable, coordinated protection with other breakers in the same panel. It’s an excellent choice when you need a reliable, field-ready solution that slots into Siemens-compatible panelboards and load centers without compromise.

Practical tips for use and installation: ensure your panelboard accepts bolt-on MCCBs of this type, confirm compatibility with the existing Siemens lineup, and verify everything seats cleanly before energizing the circuit. This breaker is purpose-built for residential, commercial, and light industrial electrical systems where robust protection and a solid mechanical connection matter most.

Upgrade, replace, or install with confidence using the Siemens B350HH — a purpose-driven, 50A, 240V, 3-pole bolt-on solution for dependable, long-lasting circuit protection.