Schneider G12T3A100 | Circuit breaker, GoPact MCCB 125, 3 poles, 10kA at 415VAC, 100A rating, TMD trip unit, adjustable thermal protection

1. Technical Specifications G12T3A100

1. Product Name:
   Molded Case Circuit Breaker (MCCB)

2. Model Number:
   G12T3A100

3. Product Family:
   GoPact MCCB 125 Series by Schneider Electric

4. Rated Current (In):
   100 Amperes

5. Number of Poles:
   3 poles (suitable for three-phase applications)

6. Breaking Capacity:
   10 kA at 415 VAC (IEC 60947-2 rated)

7. Rated Operational Voltage (Ue):
   Up to 415 VAC

8. Trip Unit Type:
   TMD (Thermal Magnetic Trip Unit)

9. Thermal Protection:
   Adjustable thermal setting – allows customization of overload protection based on application requirements.

10. Magnetic Protection:
    Fixed magnetic trip setting – designed to respond quickly to short circuits.

11. Mounting Type:
    Fixed (non-withdrawable)

12. Connection Type:
    Suitable for cable or busbar connections

13. Standards and Compliance:

• IEC 60947-2

• CE Marking

• RoHS Compliant

14. Operating Temperature:
    Typically -25°C to +70°C (refer to datasheet for specific derating)

15. Insulation Voltage (Ui):
    690 V

16. Pollution Degree:
    3 (suitable for industrial use)

2. Key Features G12T3A100

1. Adjustable Overload Protection:
   The thermal protection is user-adjustable, providing flexibility in protecting different cable sizes and loads.

2. Fixed Short-Circuit Protection:
   Magnetic trip is pre-calibrated for quick fault interruption during short circuits, enhancing equipment and personnel safety.

3. Compact Design:
   Space-efficient dimensions make it ideal for installation in distribution panels with limited space.

4. Reliable Performance:
   Designed for consistent operation in industrial and commercial environments.

5. High Dielectric Strength:
   Rated for insulation up to 690 V, supporting safe operation in higher voltage installations.

6. Simple Installation and Maintenance:
   Front-access terminals and fixed mounting reduce installation time and make maintenance straightforward.

7. Wide Application Range:
   Suitable for both power distribution and motor protection scenarios.

8. Environmentally Compliant:
   RoHS-compliant construction, using materials safe for the environment and human health.

9. Fully Compatible Accessories:
   Can be used with GoPact accessories such as rotary handles, terminal covers, and auxiliary contacts.

10. Mechanical Durability:
    Designed for thousands of mechanical and electrical operations, ensuring long service life.

3. Common Applications 

1. Industrial Electrical Panels:
   Protects and controls three-phase power circuits in factories and processing plants.

2. Power Distribution Boards:
   Installed in low-voltage distribution panels to safeguard feeders and sub-circuits.

3. Motor Control Applications:
   Protects motors from overloads and short circuits when used in combination with contactors and starters.

4. Building Electrical Systems:
   Used in commercial and residential buildings to control and protect main or sub-main lines.

5. Renewable Energy Systems:
   Applied in solar and wind systems for power isolation and protection of inverter outputs.

6. OEM and Machinery Panels:
   Suitable for original equipment manufacturers building custom control panels for various machinery.

7. Backup Generator Connections:
   Used to safely isolate generator outputs or connect load banks for testing.

8. Infrastructure Projects:
   Ideal for water treatment plants, public lighting systems, and utility substations.