3VA4112-4ED14-0AA0 - 125 Amp Circuit Breaker

3VA4112-4ED14-0AA0 - 125 Amp Circuit Breaker

Protect your electrical system with confidence using the Siemens 3VA4112-4ED14-0AA0, a 125-amp, 1-pole molded-case circuit breaker designed for low-voltage environments. Its thermal-magnetic trip unit acts fast to shut off current during an overload or short circuit, helping prevent damage before it escalates. At just about 5.1 inches tall and weighing around one pound, its compact form lets it slide seamlessly into tight panel spaces without crowding your setup. Because the load side uses dedicated lugs, installation is more straightforward—and less error-prone.

Key Features and Benefits

• Reliable Circuit Protection: Rated at 125 A with a 25 kA interrupting capacity (at 277 V) in a SEAB (Class S) configuration, this breaker ensures dependable fault handling.
• Fast Thermal-Magnetic Trip Action: The integrated TM210 fixed trip unit responds promptly to both sustained overloads and sudden short circuits.
• Space-Saving Form Factor: Compact dimensions make it ideal for panels with limited real estate.
• Easy Wiring: Load-side-only lug connections reduce complexity in connecting conductors.
• Rugged Construction: Molded case housing resists environmental stress and safeguards internal components.

Technical Specifications

• Poles: 1
  
• Amperage: 125 A
  
• Interrupting Capacity: 25 kA @ 277 V AC
  
• Frame Type / Breaking Class: 3VA41 frame, SEAB (Class S) interrupting rating
  
• Trip Unit: TM210, fixed thermal-magnetic (Ir / Ii fixed)
  
• Height: ~5.1 in / ~129 mm
  
• Approximate Weight: ~1 lb
  

Material Compliance and Certifications

• UL Listed: Conforms to UL 489 for molded case circuit breakers.
• Low-Voltage Rated: Suitable for typical commercial and residential distribution systems.
• Molded Case Design: Offers durable insulation and protection for internal parts.
• Standards Conformance: Built to meet relevant domestic and international norms applicable to low-voltage circuit protection.

Where It Works Best

• You’ll find this breaker especially useful in homes, light commercial buildings, or small industrial control panels. Whenever you need a reliable single-circuit protection device in a compact footprint, the 3VA4112-4ED14-0AA0 is a strong choice. It’s ideal for branch circuits feeding specific loads—like HVAC units, motor circuits, lighting banks, or general panel protection—where dependable performance and ease of installation matter.