Siemens 3RV1021-4BA10 Circuit Breaker, 20A, 3-Pole, 690V

The Siemens 3RV1021-4BA10 circuit breaker is a rugged, industrial-grade protection device designed for service, maintenance, and replacement projects in demanding electrical environments.

Key specs at a glance:

• Amperage: 20 A
• Poles: 3
• Voltage: 690 V

Why this model stands out

• Three-pole configuration tailored for 3-phase power systems up to 690V, delivering coordinated protection across all phases
• Built by Siemens with an emphasis on reliability and compatibility within Siemens low- and medium-voltage protection frameworks
• Designed for practical installation in industrial panels and switchgear—ideal for service upgrades, equipment retrofits, and ongoing maintenance

How it helps you in real-world scenarios

• Motor control and protection in manufacturing lines that run on 3-phase power
• Feeder protection for industrial distribution panels feeding conveyors, pumps, and fans
• Replacement for aging or worn breakers in existing 690V installations, minimizing downtime during upgrades

Compatibility and ordering notes

Verify fit by the exact part number 3RV1021-4BA10 and your application's requirements. This ensures the breaker matches your voltage class, pole configuration, and trip characteristics. If you’re unsure about compatibility, send us a message—we’re ready to help confirm that this Siemens model is the right choice for your panel or equipment.

Practical installation tips

• Check the panel's busbar arrangement and the breaker’s mounting frame to ensure a secure fit in Siemens-compatible enclosures
• Pair with compatible Siemens trip units or accessories if your setup calls for coordinated protection schemes
• Follow factory wiring diagrams and safety procedures during installation and testing

In short, the Siemens 3RV1021-4BA10 is a purposeful choice for professionals seeking dependable, three-pole protection at 690 V with a clear path for compatibility verification and maintenance-ready performance.