Siemens B315H00S01 - 15 A, 240 V, 3-Pole Circuit Breaker | AmpState

The Siemens B315H00S01 is a compact, reliable 15 A, 240 V, 3-pole molded case circuit breaker designed to protect your panelboard or loadcenter from overcurrent and short-circuit events. Sold through AmpState, this model delivers robust protection for a range of electrical installations while keeping panel space efficient.

Key reasons to choose this Siemens MCCB go beyond its nominal ratings. The molded case design conserves valuable space inside commercial and industrial panels, helping you fit more protection where it’s needed. The thermal-magnetic trip unit provides stable, repeatable protection—the thermal element responds to gradual overloads, while the magnetic element delivers an instantaneous trip on significant faults. That means fewer nuisance trips during startup surges and sudden fault conditions, safeguarding connected equipment without compromising reliability.

What sets it apart

• Three-pole, common-trip protection: assures all poles disconnect together for safe, compliant 3-phase or multi-wire circuits.
• 3-pole design for 240 V applications: ideal for branch circuits that require synchronized protection across multiple conductors.
• OEM-friendly compatibility: specifically designed to pair with Siemens OEM loadcenters and panelboards, ensuring dependable fit and electrical performance.
• Residential, commercial, and light industrial use: versatile protection suitable for a wide range of installations, from homes to small businesses and service panels.

Specifications at a glance

• Amperage rating: 15 A
• Voltage rating: 240 V
• Poles: 3
• Type: Thermal-magnetic molded case circuit breaker
• Application: Branch circuit overcurrent and short-circuit protection
• Manufacturer: Siemens
• Part number: B315H00S01

Practical use cases and installation notes

install the B315H00S01 in Siemens panelboards or compatible OEM loadcenters to safeguard lighting runs, receptacle circuits, and small motor loads. In environments with fluctuating loads or motor-startup spikes, the thermal-magnetic trip helps maintain stable protection without frequent trips. For upgrades or panel replacements, this 3-pole breaker provides a straightforward path to restore reliable, coordinated protection across three conductors.

Tips for optimal performance:

• Verify panel compatibility with the B315H00S01’s trip curves and bus connection style before installation.
• Ensure conductors are sized appropriately for 15 A and tightened to the manufacturer’s torque specification to maintain a solid, safe connection.
• Use in panels that require common-trip protection across all poles for 3-phase or multi-wire circuits.

With its precise protection, space-conscious design, and OEM-aligned compatibility, the Siemens B315H00S01 offers a dependable solution for protecting electrical systems in a wide range of settings. If you’re upgrading or stocking spare protection for Siemens panelboards, this 15 A, 240 V, 3-pole MCCB delivers the performance you expect from Siemens reliability—available now from AmpState.