3VA4120-6ED14-0AA0 - 20 Amp Circuit Breaker

3VA4120-6ED14-0AA0  -  20 Amp Circuit Breaker

The Siemens 3VA4120-6ED14-0AA0 20A Single-Pole Circuit Breaker delivers dependable protection for 20-amp low-voltage circuits — no fuss, no tuning required. It’s built on the proven 3VA41 frame and includes a fixed TM210 thermal-magnetic trip, so it’s ready to install and protect from day one. Designed for commercial and light industrial environments, this breaker offers a high interrupting capacity of 65 kA at 277 VAC, giving you solid surge tolerance. With its compact design, low weight, and load-side lug design, it slips easily into standard electrical panels and accelerates installation without compromise.

Key Features and Benefits

• 20A Single-Pole Protection: Ideal for controlling individual branch circuits in your panel.
• Factory-Set Trip Unit: TM210 unit is preset (Ir and Ii fixed), so no field calibration is necessary.
• High Fault Withstand Capability: 65 kA interrupting rating at 277 V ensures the breaker can safely handle unexpected overcurrent events.
• Compact & Lightweight: Measuring just over 5 inches in height and weighing less than 1 pound, installation is fast and easy.
• Load-Side Only Lugs: Simplifies wiring and reduces labor in tight panel spaces.
• Class H (HEAB) Breaking Capacity: Offers strong performance under heavy loads.

Technical Specifications

• Frame Type: Siemens 3VA41
• Number of Poles: 1 (Single-Pole)
• Rated Current: 20 A
• Interrupting Rating: 65 kA @ 277 VAC
• Trip Unit: TM210 (fixed thermal-magnetic)
• Dimensions: Approximately 5.1 in height
• Weight: ~1.0 lb
• Lug Configuration: Load-side only

Material Compliance and Certifications

• UL Listed: Conforms to UL 489 standards for molded-case circuit breakers.
• Low-Voltage Rated: Designed for safe and continuous performance in low-voltage systems.
• Molded-Case Construction: Built to resist mechanical and thermal stresses over long-term use.
• Consistent Standards Compliance: Manufactured to the same engineering standards as the rest of the 3VA series.

Where It Works Best

• This breaker shines in commercial or light industrial settings — especially in renovation projects or new panel builds where space, reliability, and ease of installation matter most. Use it for general lighting circuits, HVAC branch feeds, or small motor protection where 20 A single-pole coverage is required. Its plug-and-play design makes it suited to both new installations and retrofits—ideal when you want dependable circuit defense without on-site adjustments.