Bolt-On Circuit Breakers

Bolt-on circuit breakers are protective devices that mount directly to panelboard bus bars using bolted connections rather than plug-in contacts. This mounting method provides a more secure electrical connection, making bolt-on breakers ideal for applications where vibration resistance, stability, and long-term reliability are critical.

AmpState’s Bolt-On Circuit Breakers collection includes breakers suitable for commercial, industrial, and institutional power distribution systems, supporting both new installations and replacement of existing bolt-on panelboard breakers.

KEY FEATURES & SPECIFICATIONS (optional but recommended)

Bolt-on circuit breakers in this collection may include:

• Secure bolt-on mounting to panelboard bus bars

• Branch and feeder circuit protection

• Thermal-magnetic or electronic trip mechanisms

• Multiple pole configurations (1-pole, 2-pole, 3-pole)

• Compatibility with a variety of panelboard styles and legacy systems

Specifications vary by model and manufacturer.

APPLICATIONS

Bolt-on circuit breakers are commonly used in:

• Commercial and industrial panelboards

• Institutional and infrastructure facilities

• Electrical systems exposed to vibration or movement

• Retrofit and replacement projects

• Critical power distribution environments