Siemens 5SJ4130-7HG40 Circuit Breaker, 30A, 1-Pole, 240V

Meet the Siemens 5SJ4130-7HG40 Circuit Breaker — a purpose-built solution for demanding industrial electrical service, maintenance, and replacement projects. This 1-pole unit handles 30 amps at 240V, delivering reliable overcurrent protection for single-phase circuits while keeping your critical equipment safe and your operations running smoothly.

Smart compatibility starts with the part number. The 5SJ4130-7HG40 is designed to fit specific Siemens panels and configurations. Before you purchase, verify fit by part number and application requirements to ensure seamless installation and dependable protection.

What sets this breaker apart

• Single-pole design tailored for protecting a single-phase circuit, making it ideal for feeders, lighting branches, or small motor circuits in industrial settings.
• 30-amp current rating paired with 240V operation, providing precise protection for moderate loads without unnecessary trips.
• Built by Siemens to deliver consistent trip characteristics and reliable performance within compatible electrical systems.

Practical use cases include upgrading aging panels, performing maintenance on distribution boards, or replacing a failed circuit breaker in an industrial control or production line. Its compact form factor and straightforward 1-pole configuration simplify retrofits and new installations alike, minimizing downtime and enabling faster service calls.

How it benefits your operation

• Protects wiring and equipment by interrupting excessive current, reducing the risk of fire and equipment damage.
• Predictable trip behavior helps maintenance teams diagnose faults quickly and restore service with confidence.
• Part-number verification reduces installation errors and ensures you’re using a compatible Siemens component for your system.

If you’re unsure about fit, you can reach out for guidance on matching the part number to your specific application. We’re ready to help you confirm compatibility and secure the exact Siemens 5SJ4130-7HG40 you need for a safe, compliant, and reliable electrical system.