Siemens HGB3B100B - 100 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Introducing the Siemens HGB3B100B — a robust 3-pole bolt-on molded case circuit breaker rated for 100 A and 600 V. Built for dependable branch circuit protection in panelboards and loadcenters, it combines a weathered-ready design with precision protection that electricians trust for residential, commercial, and light industrial applications.

• Secure bolt-on mounting provides a rigid, vibration-resistant connection to the bus, helping maintain reliable performance in panels subjected to movement or vibration.
• Thermal-magnetic trip unit delivers stable, repeatable protection for both overloads and short circuits, reacting quickly to faults while minimizing nuisance trips in normal operation.
• 3-pole configuration ensures simultaneous interruption of all conductors in 3‑phase systems, improving safety and coordination in modern electrical distributions.
• 100 A, 600 V rating aligns with a wide range of commercial and industrial circuits, offering scalable protection for feeders and branch circuits alike.
• Molded case construction combines durability with ease of maintenance, designed to withstand routine service in challenging environments.
• OEM compatibility is built in—this breaker is designed to pair with matching Siemens load centers and panelboards for coordinated protection and guaranteed performance.

Why choose the Siemens HGB3B100B? It’s not just a breaker — it’s a thoughtfully engineered solution for reliable protection where outcomes matter. In light commercial spaces, data rooms, light manufacturing, or any installation that runs a 3‑phase distribution, this bolt-on unit delivers fast, predictable tripping and a secure fit that reduces installation time and future maintenance hassles.

Designed for use cases you’ll encounter every day:

• Upgrading or retrofitting panelboards in small to mid-size facilities requiring dependable branch circuit protection.
• Protecting 3‑phase feeders in commercial spaces, warehouses, and light industrial environments.
• Replacing worn breakers while maintaining OEM compatibility with Siemens load centers to preserve listed protection.

Practical installation and handling tips

• Follow the panelboard manufacturer’s torque specifications for bolt-on mounting to ensure the rigid bus connection is maintained.
• Use only in equipment designed for 3‑pole, 100 A, 600 V operation to guarantee proper coordination with upstream protection devices.
• Store and handle the breaker to avoid physical damage to the molded case, trip unit, and bus contacts prior to installation.

For professionals seeking a trustworthy, OEM-compatible 3-pole breaker with solid, vibration-resistant mounting and precise thermal-magnetic protection, the Siemens HGB3B100B from AmpState delivers the performance and reliability you rely on in critical electrical systems.