Siemens ED42B100L - 100 A, 480 V, 2-Pole Circuit Breaker | AmpState

Introducing the Siemens ED42B100L — a reliable 100A, 480V, 2-pole molded case circuit breaker from AmpState that’s built for dependable branch-circuit protection in panelboards and loadcenters. Designed to integrate seamlessly with Siemens-compatible enclosures, it’s a solid choice for residential, commercial, and light industrial electrical projects.

Why this breaker stands out

• Space-efficient design: A compact molded case footprint helps maximize panel density, freeing valuable space for wiring and future expansions.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection by precisely sensing overcurrent conditions and responding quickly to short circuits, reducing nuisance trips while safeguarding circuits.
• 2-pole, 480V capability: Ideal for higher-voltage distribution where reliable two‑pole protection is required, simplifying wiring schemes and enhancing overall system safety.
• OEM-loadcenter compatibility: Engineered to install smoothly in matching Siemens loadcenters and panelboards, making replacements and upgrades straightforward without panel redesigns.
• Diverse application range: Suitable for new installations and retrofits across homes, offices, retail spaces, and light industrial facilities that demand dependable overcurrent and short-circuit protection.

Who benefits most

• Electrical contractors and field technicians seeking a proven, drop-in protection solution for Siemens‑equipped panels
• Facilities managers planning panel upgrades or capacity expansions without reengineering their distribution systems
• Specifiers designing safe, scalable electrical layouts for commercial or light industrial environments

Practical use cases

• Replacing aging or failed breakers in existing Siemens panels to restore reliable protection
• Expanding a panelboard to accommodate additional circuits while maintaining consistent trip performance
• Upgrading distribution systems to support higher voltage applications with robust, code-compliant protection

Technical specifications

• Manufacturer: Siemens
• Part Number: ED42B100L
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 100A
• Voltage rating: 480V
• Number of poles: 2
• Application: Branch circuit overcurrent and short-circuit protection in panelboards and loadcenters

Tips for getting the most from your ED42B100L

• Verify panel compatibility with the exact OEM loadcenter model to ensure seamless mounting and trip coordination.
• Pair with correctly sized conductors and protective devices in accordance with local codes and the panel’s listing information.
• Document its replacement part number (ED42B100L) for future maintenance or expansion planning to maintain consistent trip characteristics.