Siemens ED41B100L - 100 A, 120 V, 1-Pole Circuit Breaker | AmpState

Introducing the Siemens ED41B100L, a 100A, 120V, 1-pole molded case circuit breaker designed for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Engineered for precise, repeatable protection, this unit fits seamlessly into Siemens OEM systems, delivering a compact footprint that maximizes panel space without sacrificing safety or performance.

Key features

• Compact molded case design that makes efficient use of panel space in dense installations.
• Thermal-magnetic trip unit for stable, repeatable protection performance across a wide range of loads.
• 100A amperage rating at 120V, providing robust protection for standard 120V branch circuits.
• 1-pole configuration ideal for protecting individual circuits while enabling straightforward fault isolation.
• Designed for compatibility with matching Siemens OEM load centers and panelboards for smooth retrofits and replacements.
• Suitable for residential, commercial, and light industrial applications where reliable 120V protection is required.

Technical specifications

• Manufacturer: Siemens
• Part number: ED41B100L
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 100 A
• Voltage rating: 120 V
• Number of poles: 1
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases

The ED41B100L is an excellent choice for electricians and facilities managers upgrading or expanding electrical panels in homes, small commercial spaces, and light industrial setups. Use it to protect individual 120V branch circuits—lighting runs, receptacle circuits, or equipment feeders—while benefiting from Siemens’ trusted performance. Its OEM compatibility ensures a straightforward replacement path within Siemens panelboards, reducing configuration issues and downtime.

Why this matters

Beyond basic specifications, the ED41B100L delivers tangible advantages: a space-saving design that frees up interior panel room, a thermal-magnetic trip mechanism that reduces nuisance trips while delivering fast fault clearance, and a reliable 100A, 120V rating tailored to everyday residential and light commercial loads. This combination supports safer electrical systems, easier maintenance, and long-term reliability in scenarios where dependable protection is non-negotiable.

Practical tips for installation and use

• Verify compatibility with your Siemens OEM load center or panelboard to ensure a seamless fit and coordinated protection strategy.
• When wiring, follow standard 1-pole breaker practices: route conductors neatly, secure terminals firmly, and apply appropriate torque per manufacturer guidelines.
• Remember that the thermal-magnetic trip provides both overload protection and instantaneous short-circuit protection, helping safeguard connected devices and reduce damage from faults.