Siemens ED23B100L - 100 A, 240 V, 3-Pole Circuit Breaker | AmpState

Meet the Siemens ED23B100L, a trusted 100-amp, 240-volt, 3-pole molded case circuit breaker designed for dependable branch-circuit overcurrent and short-circuit protection in panelboards and load centers. This MCCB combines a compact footprint with a proven thermal-magnetic trip mechanism to deliver reliable, repeatable protection across a range of conditions.

Key advantages

• Space-efficient design — a compact molded case fits neatly into tight panel spaces, making installations cleaner and easier in both new builds and upgrades.
• Thermal-magnetic trip unit — thermal protection handles gradual overloads with precision, while magnetic protection responds quickly to short circuits, helping to minimize damage and downtime.
• Seamless compatibility — engineered to work with matching Siemens OEM load centers and panelboards for straightforward replacement, upgrades, or system expansions.
• Versatile applications — suitable for residential, commercial, and light industrial environments where reliable protection and predictability matter.

Technical snapshot

• Amperage rating: 100 A
• Voltage rating: 240 V
• Number of poles: 3
• Type: Thermal-magnetic molded case circuit breaker (MCCB)
• Application: Branch circuit overcurrent and short-circuit protection

Why a 3-pole design matters

In 3-phase systems, a 3-pole breaker like the ED23B100L disconnects all conductors simultaneously. This coordinated shutdown reduces arc energy, improves safety, and protects connected equipment more effectively than single- or double-pole alternatives in multi-phase layouts.

Ideal use scenarios

• Upgrading or replacing aging panelboards in office buildings, retail spaces, or light manufacturing facilities
• Protecting feeders and branch circuits in new commercial installations that use 3-phase power
• Integrating with Siemens OEM load centers for consistent performance and ease of maintenance

Installation and care

Install the ED23B100L in accordance with local electrical codes and Siemens mounting guidelines. Its compact form factor and reliable thermal-magnetic trip mechanism are designed to deliver long-term protection with predictable response under varying electrical loads.