Siemens | E23S100A | Circuit Breaker | 100A | 3-Pole | 240V

Siemens E23S100A Circuit Breaker — a precise, reliable solution for safeguarding your 3-phase electrical system. Engineered for maintenance, retrofit, and replacement projects that demand exact specifications, this 100A, 3-pole breaker is built to perform where it matters most: protecting equipment, reducing downtime, and keeping your panel running smoothly. Key specifications at a glance - Amperage: 100A - Poles: 3-Pole - Voltage: 240V - Part number: E23S100A - Brand: Siemens Why this model stands out - Precision fit for 3-phase, 240V applications: This breaker is purpose-built for commercial and industrial environments where three-conductor, 240-volt distribution is the norm, delivering dependable overcurrent protection across all three phases. - Clear compatibility guidance baked in: The part number E23S100A is your best reference for matching against existing panels and assemblies. When you’re replacing or retrofitting, this exact model minimizes guesswork and streamlines procurement. - Robust Siemens engineering: Designed to integrate with Siemens electrical systems, it complements the reliability and consistency you expect from a trusted brand, helping to reduce nuisance trips and maintenance cycles. Practical use cases - Retrofit projects: Upgrade aging protection in a 3-phase 240V distribution panel to restore dependable protection without reconfiguring the panel. - Maintenance replacements: Swap in a like-for-like 100A, 3-pole 240V breaker to keep critical loads protected and minimize system downtime. - New installations in compatible Siemens systems: Use where specifications align with Siemens E23-series breakers to ensure seamless operation and predictable tripping behavior. How to verify fit and ensure safe installation - Confirm fit and ratings before ordering: Match this model to your panel’s labeling and existing breakers to prevent incompatibility risks. - Reference the part number: Use E23S100A as the definitive compatibility check, ensuring the breaker matches your panel’s design and bus configuration. - Prepare for proper installation: Disconnect power, follow standard electrical safety procedures, and plan for correct torque and mounting to maintain reliable protection across all three poles. Who should consider Siemens E23S100A - Electrical contractors and facilities teams working with Siemens panels or systems that require precise 100A, 3-pole, 240V protection. - Maintenance engineers performing routine replacements or upgrades to maintain consistent protection across 3-phase equipment. - Any project where exact 3-pole, 240V compatibility and a trusted Siemens component are key decision factors. In short, the Siemens E23S100A is a purpose-driven solution for dependable three-phase protection at 240V, with clear compatibility cues centered on the exact part number. When your goal is reliable, straightforward replacement or retrofit within Siemens-compatible panels, this 100A, 3-pole breaker delivers the right balance of performance, compatibility, and peace of mind.