Siemens 3RV1021-1KA15 Circuit Breaker, 5A, 3-Pole

Siemens 3RV1021-1KA15 is a robust circuit breaker designed for industrial electrical service, maintenance, and replacement projects. With a 3-pole configuration and a 5 A amperage rating, it delivers dependable protection for three-phase circuits while integrating seamlessly into Siemens control and distribution environments.

Why this model stands out:

• Three-pole design for 3-phase systems: Provides balanced protection across all three phases in industrial panels, motor control centers, and distribution boards.
• 5 A nominal current rating: Precisely shields low- to mid-range loads and automation circuits, reducing nuisance trips while maintaining reliable protection.
• Part-number-driven compatibility: Use the exact part number 3RV1021-1KA15 to verify fit with your equipment and installation requirements—the quickest path to a correct replacement.
• Industrial-grade reliability: Engineered for demanding environments, delivering consistent performance and longer service life in service, maintenance, and replacement work.
• Seamless integration: Built to work within Siemens systems and standard industrial panels, simplifying retrofits and new installations alike.

Key specifications at a glance

• Part Number: 3RV1021-1KA15
• Amperage: 5 A
• Poles: 3
• Product Type: Circuit Breaker

Use cases and scenarios

• Replacing worn or outdated breakers in industrial control panels and distribution boards
• Protecting 3-phase machinery and equipment with a precise 5 A protection threshold
• Stocking a reliable spare part for maintenance programs and scheduled service windows

Need help confirming compatibility or matching the exact part number to your application? Message us and we’ll assist with fit checks and recommendations based on your equipment and project requirements.