Siemens 3RV2021-1DA10 - Circuit Breaker | AmpState

Siemens 3RV2021-1DA10 molded case circuit breaker delivers reliable branch circuit overcurrent and short-circuit protection for panelboards and loadcenters. Engineered for residential, commercial, and light industrial environments, this device combines space efficiency with dependable protection in a compact, molded case design.

• Compact molded case design: Optimizes panel space and simplifies installation in tight service panels.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection by responding to both overload and short-circuit conditions.
• OEM-compatible: Designed to pair with matching Siemens loadcenters and panelboards for straightforward replacement and coordinated protection.
• Versatile application: Suitable for a wide range of settings—from home electrical panels to light commercial and light industrial circuits.

Key use cases and scenarios

• Replacing aging or non-Siemens breakers in existing Siemens-compatible panels to restore reliable protection and consistent trip characteristics.
• Expanding or upgrading a panelboard or loadcenter where a compact, space-saving breaker helps maximize available space.
• Protecting branch circuits that feed lighting, receptacles, small machinery, or HVAC-related loads in residential or small-scale commercial applications.

Why choose the 3RV2021-1DA10

• Consolidates protection and space efficiency in a single molded case device, reducing panel depth requirements while maintaining robust protection.
• Thermal-magnetic technology provides quick response to short circuits and reliable overload protection, contributing to safer, more predictable operation.
• Siemens compatibility means simpler sourcing, stocking, and on-site replacements within Siemens systems.

Technical snapshot

• Manufacturer: Siemens
• Part Number: 3RV2021-1DA10
• Type: Thermal-magnetic molded case circuit breaker
• Application: Branch circuit overcurrent and short-circuit protection