Siemens 3RV2021-1AA10 - Circuit Breaker | AmpState

Siemens 3RV2021-1AA10 is a molded case circuit breaker engineered to deliver dependable branch circuit overcurrent and short-circuit protection within panelboards and loadcenters.

Its compact molded case design maximizes panel space, so you can protect more circuits without crowding the enclosure. The thermal-magnetic trip unit delivers stable, repeatable protection by responding to both overloads and short circuits, reducing nuisance trips and ensuring consistent performance across temperature and load conditions.

• OEM-compatible with matching Siemens loadcenters and panelboards, simplifying replacement, upgrades, and system coordination.
• Versatile application suitable for residential, commercial, and light industrial electrical distributions where reliable protection is essential.

Technical snapshot

• Manufacturer: Siemens
• Part Number: 3RV2021-1AA10
• Type: Thermal-magnetic molded case circuit breaker
• Application: Branch circuit overcurrent and short-circuit protection

Why it stands out

• Compact design to maximize panel capacity without compromising protection.
• Thermal-magnetic mechanism delivers precise trip behavior, balancing protection with minimal nuisance trips.
• Seamless integration with Siemens panelboards and loadcenters ensures coordinated, predictable protection across the distribution system.

Ideal use cases

• Residential panel upgrades or new installations where space is limited but protection is non-negotiable.
• Small commercial panelboards powering offices, lighting, and essential circuits requiring dependable overcurrent protection.
• Light industrial electrical distributions where maximizing panel capacity and reliability matters.

Choose the Siemens 3RV2021-1AA10 for a trusted, performance-driven solution that protects individual circuits from overloads and short circuits, while integrating smoothly with your Siemens electrical ecosystem for straightforward maintenance and reliable operation.