Siemens 5SX2203-8 - 8A, Circuit Breaker

The Siemens 5SX2203-8 is a purpose-built 8A circuit breaker designed to deliver dependable overcurrent protection in demanding electrical environments. Built to perform in real-world panelboards, switchboards, control panels, and OEM equipment, this unit helps you safeguard circuits, equipment, and personnel by interrupting fault conditions quickly and reliably.

Key to its value is seamless integration within Siemens distribution systems. The 5SX2203-8 aligns with Siemens' broader 5SX family, ensuring compatibility, streamlined maintenance, and readily available spare parts for long-term reliability in your electrical infrastructure. This makes it an ideal upgrade or replacement option for existing Siemens installations where precise current control and safe operation are critical in distribution panels and motor control centers.

What makes this breaker stand out

• Explicit 8A current rating for precise protection of smaller feeders and branch circuits
• Straightforward integration with panelboards, switchboards, control panels, and OEM equipment
• Designed to deliver consistent protection across industrial, commercial, and OEM applications
• Part of Siemens’ trusted 5SX line, enabling reliable compatibility with related accessories and systems

Ideal use scenarios

• Protecting individual feeders in manufacturing lines where an 8A protection level is appropriate
• Safeguarding control circuits in panelboards and switchboards in commercial facilities
• Serving as a dependable OEM device within equipment that relies on standardized Siemens protection hardware
• Providing clear, predictable tripping behavior to minimize downtime after overload or fault conditions

Specifications at a glance

Current rating: 8A

Breaker type: Circuit Breaker

Upgrade, maintain, or configure with confidence using the Siemens 5SX2203-8. It’s purpose-built for environments where consistent protection, safe operation, and compatibility with Siemens distribution panels and motor control centers aren’t optional—they’re essential.