Schneider G12E3A125 | Circuit breaker, GoPact MCCB 125, 3 poles, 15kA at 415VAC, 125A rating, TMD trip unit, adjustable thermal protection

Technical Specifications G12E3A125

• Product Name: Schneider G12E3A125

• Type: Molded Case Circuit Breaker (MCCB)

• Series: GoPact MCCB 125

• Number of Poles: 3 poles

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

• Interrupting Capacity (Icu): 15 kA at 415 VAC

• Rated Current (In): 125 A

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

• Thermal Protection: Adjustable

• Magnetic Protection: Fixed

• Frequency: 50/60 Hz

• Mounting Type: Fixed, typically panel-mounted

• Standard Compliance: IEC 60947-2

• Breaking Capacity Class: Low breaking capacity suitable for light-to-medium duty applications

Key Features

• Reliable Circuit Protection
  Designed to protect electrical installations and equipment from overloads and short circuits, ensuring safety and operational reliability in industrial and commercial environments.

• Adjustable Thermal Trip Settings
  The thermal protection can be adjusted to suit different load requirements, allowing better coordination with downstream devices and minimizing unnecessary tripping.

• Compact Design
  Its small footprint allows for easy integration in confined panel spaces, making it suitable for both new installations and retrofit projects.

• Thermal-Magnetic Trip Unit (TMD)
  Combines two types of protection:

  • Thermal (Overload): Adjustable to adapt to varying load profiles

  • Magnetic (Short Circuit): Fixed for fast interruption of high fault currents

• Quick Installation and Maintenance
  Simple mounting and wiring design help reduce installation time. Front-accessible terminals make it easy to inspect or replace.

• Cost-Effective Protection Solution
  Offers Schneider quality at an economical price point, making it an excellent choice for cost-sensitive projects that still demand reliable protection.

• Standards Compliance
  Built in accordance with IEC 60947-2, ensuring global compatibility and trust in safety performance.

Applications

• Commercial Electrical Panels
  Used in low-voltage distribution boards for protection of lighting, HVAC systems, and small equipment in commercial buildings such as offices, malls, and schools.

• Small to Medium Industrial Facilities
  Suitable for protecting motor feeders, distribution panels, and auxiliary circuits in workshops, warehouses, and light manufacturing plants.

• Infrastructure Projects
  Ideal for public service installations like hospitals, educational institutions, and government buildings requiring reliable protection for general-purpose loads.

• Power Distribution Units (PDUs)
  Installed in PDUs and sub-distribution boards to manage load protection and isolation in networked power environments.

• Renewable Energy Applications
  Can be used in solar PV systems or backup power installations (with proper coordination) to provide circuit-level protection and disconnection.

• Motor Control Centers (MCCs)
  Provides protection for motor circuits where moderate starting currents are expected and adjustable overload protection is beneficial.