Schneider G12F3A20 | Circuit breaker, GoPact MCCB 125, 3 poles, 30kA at 415VAC, 20A rating, TMD trip unit, adjustable thermal protection

Technical Specifications G12F3A20

• Product Name: Schneider Electric G12F3A20

• Product Type: Molded Case Circuit Breaker (MCCB)

• Series: GoPact MCCB 125

• Number of Poles: 3 poles

• Rated Current (In): 20 Amps

• Frame Size: 125 A

• Rated Operational Voltage (Ue): Up to 415 VAC

• Breaking Capacity (Icu): 30 kA at 415 VAC

• Trip Unit Type: TMD (Thermal Magnetic Trip Unit)

• Thermal Protection: Adjustable — provides fine-tuning for overload conditions

• Magnetic Protection: Fixed — ensures fast reaction to short circuits

• Frequency: 50/60 Hz

• Mounting Type: Fixed (panel-mounted)

• Compliance Standards: IEC 60947-2

• Utilization Category: AC-22A — for resistive and inductive loads

Key Features G12F3A20

• High Performance at Low Current Rating
  Designed for applications requiring precise protection at 20A, while still offering robust fault protection with a 30 kA breaking capacity.

• Adjustable Thermal Overload Protection
  Enables users to set thermal trip values to closely match system demands, improving coordination and operational safety.

• Fixed Magnetic Trip Protection
  Rapid response to short-circuit conditions reduces the risk of damage to downstream components.

• Compact, Durable, and Efficient
  Fits seamlessly into standard panels while maintaining long-term performance in both industrial and commercial settings.

• Simple Installation & Maintenance
  Designed with standard dimensions, front-access terminals, and clear labeling for ease of wiring and inspection.

• Backed by Schneider Electric
  Built to international standards with the reliability and engineering quality Schneider is known for.

Applications

• Commercial Lighting & Load Panels
  Suitable for protecting lighting circuits, signage, and power outlets in offices, hotels, and retail environments.

• Control Panels & Low-Power Motors
  Ideal for auxiliary loads, small motors, or PLC panels that operate on 20A or less.

• Renewable Energy Subsystems
  Protects specific strings, control units, or inverters in solar and wind installations requiring precise current limits.

• Critical Infrastructure & Communication Equipment
  Used for protecting power circuits to control units, sensors, and communication modules in airports, data centers, and hospitals.

• Backup Power Distribution
  Can be used in protected outputs from small UPS systems or emergency generator loads that require low current ratings.

• Educational & Public Institutions
  Perfect for use in structured electrical panels in schools, labs, and government buildings.