Siemens S1A18BL100CTS Load Center Panelboard Assembly

Siemens S1A18BL100CTS Load Center Panelboard Assembly is a Siemens-made low-voltage distribution panel designed for 240V, single‑phase service. The unit carries a 250A panel rating and is configured with a 100A main breaker, providing primary overcurrent protection while serving as the centralized point to feed branch circuits in residential or light‑commercial electrical systems. The S1A18BL100CTS designation indicates a specific form factor within the Siemens S1 family, enabling compatibility with Siemens panelboard components and accessories designed for this configuration. This assembly supports standard load‑center layouts where downstream protection is coordinated with a 100A main, making it suitable for installations that require a compact, code‑compliant main‑breaker panel in a single enclosure. When planning, verify that downstream branch breakers and any accessories you add are compatible with Siemens’ panelboard standards and the 100A main configuration to ensure proper protection and safe operation.