Siemens 3RV2021-1KA10 - Circuit Breaker | AmpState

Meet the Siemens 3RV2021-1KA10 molded case circuit breaker—a dependable, space-smart solution for protecting branch circuits in panelboards and loadcenters. Designed for residential, commercial, and light industrial environments, this unit combines a compact footprint with precise protection to keep electrical systems running smoothly.

• Compact molded case design maximizes panel space, helping you fit more circuits into smaller enclosures without sacrificing protection.
• Thermal-magnetic trip unit delivers stable, repeatable protection performance against overloads and short-circuit events, reducing nuisance trips and improving reliability.
• OEM-compatible integration engineered to work with matching Siemens loadcenters and panelboards for straightforward replacement and dependable coordination.
• Versatile installation suitable for residential, commercial, and light industrial applications, making it a versatile choice for mixed-use environments.

Why this matters: a compact design that doesn’t compromise safety, paired with a thermal-magnetic trip mechanism that reacts quickly to faults while minimizing unnecessary interruptions. This ensures you maintain power where it counts—lighting, outlets, and critical equipment—without frequent breaker trips or space constraints dictating your panel setup.

Technical snapshot

• Manufacturer: Siemens
• Part Number: 3RV2021-1KA10
• Type: Thermal-magnetic molded case circuit breaker
• Application: Branch circuit overcurrent and short-circuit protection

This breaker is an ideal choice when you need reliable, coordinated protection within Siemens panelboards and loadcenters. Whether you’re upgrading a retrofit, stocking a service van with a proven replacement, or standardizing equipment across multiple sites, the 3RV2021-1KA10 delivers consistent performance and a straightforward installation path.

Choose the Siemens 3RV2021-1KA10 for a proven combination of compact design, precise protection, and OEM alignment that keeps your electrical system safe and scalable. Available from AmpState for customers who value quality, compatibility, and practical, real-world protection.