Siemens ED42B100 - 100 A, 480 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Introducing the Siemens ED42B100 — a 100A, 480V, 2-pole bolt-on molded case circuit breaker engineered for dependable branch circuit protection in panelboards and load centers. Designed to integrate smoothly within Siemens ecosystems, it provides a straightforward upgrade path that preserves system reliability and performance.

• Secure bolt-on mounting delivers a rigid, vibration-resistant bus connection, minimizing the risk of loose contacts in demanding environments.
• Thermal-magnetic trip unit offers stable, repeatable protection behavior, quickly responding to overcurrent and short-circuit events to safeguard your equipment.
• OEM compatibility is ensured with matching Siemens load centers and panelboards, simplifying replacements and upgrades without sacrificing performance.
• Versatile applications suited for residential, commercial, and light industrial installations that require reliable 2-pole protection at 480V.
• 2-pole design at 100A provides targeted protection for branch circuits, helping maintain electrical system integrity in distributed power setups.

Practical use scenarios

• Upgrading aging distribution panels in commercial offices or light industrial facilities where 480V circuits are common. The bolt-on mounting simplifies installation in existing enclosures without rewiring bus connections.

• Replacing or retrofitting underperforming or nuisance-tripping breakers in Siemens-compatible panelboards, helping maintain stable operation across critical circuits.

• Designing new 480V distribution schemes that require reliable, easy-to-service protection for branch circuits that feed motors, HVAC controllers, lighting mains, or other commercial equipment.

Why this matters

In power distribution, reliability hinges on solid connections and predictable protection. The ED42B100’s bolt-on design minimizes movement and arc risk in vibration-prone installations, while the thermal-magnetic trip unit delivers consistent coordination with upstream protection devices. This translates to fewer unexpected trips, faster fault isolation, and longer equipment life.

Technical snapshot

• Siemens
• ED42B100
• Thermal-magnetic molded case circuit breaker
• 100A
• 480V
• 2
• Bolt-on
• Branch circuit overcurrent and short-circuit protection

Choose the Siemens ED42B100 for a robust, compatible solution that aligns with Siemens panelboards and load centers, delivering reliable protection where it counts most. It’s a practical, purpose-built choice for professionals who value precise protection, straightforward integration, and long-term system stability.