Siemens B38000S01 - 80 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Siemens B38000S01 is a rugged, bolt-on molded case circuit breaker engineered to protect your electrical distribution with precision. With an 80A rating at 240V and a 3-pole configuration, this device is purpose-built for reliable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters.

• Secure bolt-on mounting for a rigid, vibration-resistant bus connection that stays stable in challenging environments and reduces the risk of loose connections over time.
• Thermal-magnetic trip unit delivers stable, repeatable protection by responding to both overloads (thermal) and short circuits (magnetic), helping prevent equipment damage and downtime.
• OEM compatibility designed to integrate seamlessly with matching Siemens OEM load centers and panelboards, simplifying replacement and upgrades without compatibility concerns.
• Versatile across settings suitable for residential, commercial, and light industrial applications where dependable 3-pole protection is needed.
• Three-pole, 80A, 240V operation ideal for protecting three-phase feeders and motors, ensuring balanced protection across all phases in a single device.

What problems does it solve?

When your electrical system encounters an overload or a short circuit, the B38000S01 quickly interrupts the fault current, reducing the risk of equipment damage and fire while keeping downstream circuits safe. Its bolt-on design minimizes bus-bar movement and electrical noise, contributing to long-term reliability in panel installations found in homes, small businesses, and light industrial facilities.

Ideal use scenarios

• Upgrading or replacing aging or OEM-specific breakers in residential panelboards and commercial loadcenters
• Feeding and protecting 3-phase equipment such as HVAC compressors, pumps, conveyors, and other motor loads
• Panelboard main feeders or branch circuits in light industrial applications where robust fixation and dependable protection are paramount

Technical snapshot

• Manufacturer: Siemens
• Part Number: B38000S01
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 80A
• Voltage Rating: 240V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Applications: Branch circuit overcurrent and short-circuit protection

Practical installation tips

• Ensure the breaker is compatible with your specific Siemens panelboard or loadcenter before installation.
• Torque the mounting hardware to the panel’s specified values to maintain the integrity of the bolt-on connection.
• Verify conductor sizing and wiring clearances to support an 80A load and prevent overheating.
• De-energize and lockout/tagout the panel before any service work, and follow all local electrical codes during installation.