Siemens 5SX2318-7 Circuit Breaker, 15A, 3-Pole, 480V

Introducing the Siemens 5SX2318-7 Circuit Breaker — a purpose-built protection device for industrial electrical systems. This 15 A, 3-pole breaker is designed to safeguard 3-phase circuits operating at up to 480 V, making it a reliable choice for service, maintenance, and replacement projects in manufacturing, facilities, and automation environments.

Key value propositions:

• Three-pole protection for 3-phase networks: Provides concurrent interruption across all phases to prevent unbalanced loads and equipment damage.
• 480V industrial readiness: Rated for processes and machinery commonly running on 480V three-phase power, with a 15 A electrical current rating for your circuit's protection needs.
• Precise part number compatibility: Uses Siemens part number 5SX2318-7, enabling straightforward verification during procurement and installation.
• Versatile application: Suitable for installation in industrial panels, machinery feeders, service panels, and replacement scenarios where a 3-pole, 480V breaker is required.
• Support for compatibility checks: If you’re unsure about fit, our team can help confirm compatibility based on your application requirements—send us a message.

Why this matters: with the Siemens 5SX2318-7, you get consistent protection for critical equipment, reduced risk of nuisance trips, and a straightforward replacement path when upgrading or performing routine maintenance. The 3-pole configuration helps evenly distribute protection across all three phases, which is essential for motors, drives, and other three-phase loads that demand balanced protection.

Who should consider this breaker? Electrical engineers, facility maintenance teams, panel installers, and procurement professionals who manage industrial electrical infrastructure in environments where 480V three-phase service is standard and quick, reliable compatibility is essential. It’s especially valuable for projects that require exact part matching to minimize downtime and ensure continuity of operation.

Important compatibility note: Verify fit by part number (5SX2318-7) and ensure your application requirements align with the 15 A, 3-pole, 480V specification. If you need help confirming compatibility or matching a part number to your panel, message us and we’ll assist with your setup.