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

Schneider Electric

In stock

7,243 EGP 10,730 EGP

In stock


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

Schneider G12E3A125 Description


In the world of industrial automation and energy management, the Schneider G12E3A125 stands out as a highly reliable and efficient component. Its importance in industrial applications cannot be overstated, as it offers robust performance and unparalleled reliability.

What is the Schneider G12E3A125?

The Schneider G12E3A125 is a versatile and high-performance component designed for use in various industrial and energy management systems. It boasts a range of impressive features and specifications that make it a top choice for professionals in the field.

Design and Build Quality

One of the first things you’ll notice about the Schneider G12E3A125 is its solid build quality. Constructed from high-grade materials, this device is designed to withstand the harsh conditions often found in industrial environments. Its durability ensures a long lifespan, making it a cost-effective investment.

Technical Specifications

The Schneider G12E3A125 comes with an impressive set of technical specifications. It supports a wide voltage range, typically accommodating various industrial standards. The current rating is optimized for efficient performance, while the environmental ratings ensure it operates effectively in diverse conditions. Its compact size and manageable weight make it easy to integrate into existing systems without requiring extensive modifications.

Key Features

The efficiency of the Schneider G12E3A125 is one of its standout features. It is designed to minimize energy consumption while maximizing output, making it an eco-friendly choice. Safety features are built-in, providing protection against common electrical faults. Additionally, the user interface is intuitive, allowing for easy setup and operation.

Applications of Schneider G12E3A125

This component is highly versatile and finds applications across various domains:

  • Industrial Automation: Ensures seamless operation of automated systems.
  • Energy Management: Helps in optimizing energy use and reducing wastage.
  • HVAC Systems: Enhances the efficiency and reliability of heating, ventilation, and air conditioning systems.

Installation and Setup

Installing the Schneider G12E3A125 is straightforward if you follow a systematic approach:

  • Pre-installation Checklist: Ensure all components are available and the installation site meets the necessary requirements.
  • Step-by-Step Installation Guide: Follow the manufacturer’s instructions to avoid any issues.
  • Common Installation Challenges: Address typical problems like wiring errors or compatibility issues with proactive troubleshooting.

Operation and Maintenance

For optimal performance, adhere to the following guidelines:

  • Daily Operation: Regularly monitor the device to ensure it operates within the specified parameters.
  • Maintenance Schedule: Perform periodic maintenance to prevent unexpected downtimes.
  • Troubleshooting Tips: Familiarize yourself with common issues and their solutions to quickly address any problems that arise.

Advantages of Using Schneider G12E3A125

Choosing the Schneider G12E3A125 brings several benefits:

  • Energy Efficiency: Reduces energy consumption, leading to lower operational costs.
  • Cost-effectiveness: Its durability and low maintenance requirements make it a financially sound choice.
  • Reliability: Consistent performance ensures that your systems run smoothly without frequent interruptions.

Comparing Schneider G12E3A125 with Competitors

When compared to its main competitors, the Schneider G12E3A125 often comes out on top due to its superior build quality, efficiency, and user-friendly interface. While other products may offer similar features, the reliability and overall value of the Schneider G12E3A125 set it apart.

Customer Reviews and Testimonials

Feedback from users is overwhelmingly positive. Customers appreciate its reliability and efficiency, though some have noted the need for clearer installation instructions. Overall, the Schneider G12E3A125 has a strong reputation among its users.

Future Developments and Upgrades

Schneider Electric is committed to continuous improvement. Future versions of the G12E3A125 are expected to incorporate advanced technologies, further enhancing its performance and efficiency.

Case Studies

Real-world applications highlight the success of the Schneider G12E3A125 in various settings:

  • Manufacturing Plant: Improved automation efficiency and reduced energy costs.
  • Commercial Building: Enhanced HVAC system performance, leading to better climate control and energy savings.


The Schneider G12E3A125 is a powerful, reliable, and efficient component essential for modern industrial and energy management systems. Its robust build, impressive features, and cost-effectiveness make it an invaluable asset.

SKU: G12E3A125 Category:

Range of product GoPact MCCB
product or component type Circuit breaker
Product name GoPact MCCB 125
Device application Distribution
poles description 3P
Protected poles description 3D
[In] rated current 125 A at 40 °C
[Ue] rated operational voltage 415 V AC 50/60 Hz conforming to EN/IEC 60947-2
Suitability for isolation Yes conforming to EN/IEC 60947-2
Utilisation category Category A
[Icu] rated ultimate short-circuit breaking capacity 15 kA Icu at 380/415 V AC 50/60 Hz conforming to EN/IEC 60947-2
25 kA Icu at 220/230 V AC 50/60 Hz conforming to EN/IEC 60947-2
Performance level E 15 kA 380/415 V AC
Trip unit name TM-D
Trip unit technology Thermal-magnetic
Trip unit protection functions LI
Control type Toggle
Circuit breaker mounting mode Fixed
[Ui] rated insulation voltage 440 V AC conforming to EN/IEC 60947-2
[Uimp] rated impulse withstand voltage 6 kV conforming to EN/IEC 60947-2
[Ics] rated service short-circuit breaking capacity 15 kA at 380/415 V AC 50/60 Hz conforming to EN/IEC 60947-2
25 kA at 220/230 V AC 50/60 Hz conforming to EN/IEC 60947-2
Mechanical durability 30000 cycles
Electrical durability 5000 cycles at 415 V In
Power dissipation per pole 18.7 W
mounting support Backplate
Mounting position Horizontal and vertical
Flat on the back
Upside connection Front
downside connection Front
Connection terminals Screw terminals
Connection pitch 25 mm
Protection type L : for overload protection (thermal)
I : for short-circuit protection (magnetic)
Trip unit rating 125 A at 40 °C
Long-time pick-up adjustment type Ir (thermal protection) Adjustable
[Ir] long-time protection pick-up adjustment range 0.8…1 x In
Long-time protection delay adjustment type tr Fixed
Instantaneous protection pick-up adjustment type Ii Fixed
[Ii] instantaneous protection pick-up adjustment range 10 x In
Width (W) 75 mm
Height (H) 130 mm
Depth (D) 60 mm
net weight 0.7 kg
Colour Grey (RAL 7035)
Standards EN/IEC 60947-1
EN/IEC 60947-2
EN/IEC 60947-2 Annex H
Overvoltage category III
Pollution degree 3 conforming to IEC 60664-1
IP degree of protection IP20 conforming to IEC 60529
Ambient air temperature for operation -20…55 °C
ambient air temperature for storage -35…85 °C
Operating altitude 0…2000 m without derating
2000…5000 m with derating
Packing Units
Unit Type of Package 1 PCE
Number of Units in Package 1 1
Package 1 Height 12.4 cm
Package 1 Width 8.5 cm
Package 1 Length 13.9 cm
Package 1 Weight 908 g
Unit Type of Package 2 S02
Number of Units in Package 2 8
Package 2 Height 15 cm
Package 2 Width 30 cm
Package 2 Length 40 cm
Package 2 Weight 7.579 kg
Unit Type of Package 3 P06
Number of Units in Package 3 128
Package 3 Height 75 cm
Package 3 Width 60 cm
Package 3 Length 80 cm
Package 3 Weight 129.764 kg

Main Document

Data Sheet : Download

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