3VA4120-5ED14-0AA0 - 20 Amp Circuit Breaker

3VA4120-5ED14-0AA0  -  20 Amp Circuit Breaker

Protect your electrical circuit with confidence using the Siemens 3VA4120-5ED14-0AA0, a high-performance 20 A, single-pole molded-case breaker. Built for everyday reliability, this compact device quickly detects and interrupts overloads or short circuits, ensuring your systems run smoothly and your equipment remains safe. Designed with the trusted TM210 thermal-magnetic trip unit, it responds rapidly when thresholds are exceeded while operating cleanly under normal load. With a 35 kA interrupting rating at 277 VAC, this breaker can handle demanding scenarios while maintaining stability. Its slim form factor (standing just over 5 inches and weighing approximately 1 lb) lets it fit easily into most panels, making installation straightforward for electricians and maintenance teams alike.

Key Features and Benefits

• Rapid Response: Rapid response to overloads and short circuits via the TM210 trip unit.
• High Fault Tolerance: 35 kA interrupting rating at 277 VAC ensures high fault tolerance.
• Compact Design: Compact, lightweight design simplifies panel installation.
• Pre-installed Load-Side Lugs: Load-side lugs preinstalled for faster wiring.
• Single-Pole Configuration: Single-pole configuration well suited for lighting or low-voltage circuits.
• Consistent Trip Behavior: Stable performance across temperature ranges and consistent trip behavior.

Technical Specifications

• Poles: 1
  
• Rated Current: 20 A
  
• Interrupting Capacity: 35 kA @ 277 VAC
  
• Trip Unit: TM210 (thermal-magnetic, fixed Ir / fixed Ii)
  
• Frame: 3VA41 (Class M breaking capacity)
  
• Height: ~5.1 in
  
• Weight: ~1 lb
  
• Terminal Type: Load-side lugs (preinstalled)
  
• Enclosure / Case: Molded case, type 3VA (low-voltage grade)
  

Material Compliance and Certifications

• UL Listed: This breaker meets rigorous safety and quality standards under standard electrical safety protocols.
• Molded Case Design: Molded case design for electrical insulation and durability.
• Environmental Compliance: Complies with environmental directives (e.g. RoHS / REACH) per manufacturer’s documentation.
• Safety and Performance: Designed to maintain safety and performance across thermal and mechanical stresses.

Where It Works Best

• This Siemens breaker is versatile enough for a range of applications. It excels in residential, commercial, and light industrial environments. Use it to protect lighting circuits, HVAC units, motor control circuits, or other low-voltage equipment. Because it offers high interrupting capacity with a compact build, it's a favorite among electricians, facility managers, and maintenance teams who need dependable protection without sacrificing space.