Description

Schneider G12T3F63| Circuit breaker, GoPact MCCB 125, 3 poles, 10kA at 415VAC, 63A rating, TMD trip unit, fixed thermal protection

Schneider G12T3F63 | Circuit Breaker, GoPact MCCB 125, 3P, 10kA at 415V AC, 63A, TMD Trip Unit

1. Overview

The Schneider G12T3F63 is a Molded Case Circuit Breaker (MCCB) from the GoPact MCCB 125 series, designed for circuit protection in industrial and commercial applications. It features a 63A rating, TMD (Thermal Magnetic) trip unit, and a 10kA breaking capacity at 415V AC, making it ideal for power distribution and overload protection.

2. Key Features

  • Rated Current: 63A – Suitable for medium-power applications

  • Poles: 3P (Three-Pole) – Designed for three-phase power systems

  • Breaking Capacity: 10kA at 415V AC – Ensures protection against moderate fault currents

  • Trip Unit Type: TMD (Thermal Magnetic Device)

    • Thermal Protection: Fixed setting for overload protection

    • Magnetic Protection: Instantaneous trip for short-circuit protection

  • Durable & Compact Design – Built for industrial environments

  • Standards Compliance: IEC 60947-2

3. Technical Specifications

Parameter Details
Product Type MCCB (Molded Case Circuit Breaker)
Series GoPact MCCB 125
Rated Current (In) 63A
Number of Poles 3P (Three-Pole)
Breaking Capacity 10kA at 415V AC
Trip Unit Type TMD (Thermal Magnetic Device)
Thermal Protection Fixed
Magnetic Protection Fixed
Voltage Rating ≤ 415V AC
Frequency 50/60Hz
Operating Temperature -25°C to +55°C
Mounting Type Panel Mount
Compliance IEC 60947-2

4. Applications

The Schneider G12T3F63 MCCB is commonly used in:
Power Distribution Systems – Protects electrical panels and switchgear
Motor Protection – Prevents damage from overloads and short circuits
Industrial & Commercial Buildings – Ideal for factories, offices, and warehouses
Renewable Energy Systems – Used in solar and wind power installations
Backup Power Systems – Essential in UPS and generator circuits

5. Benefits

Reliable Circuit Protection – Prevents damage due to overloads and short circuits
Efficient Power Isolation – Ensures safe maintenance and operation
High Breaking Capacity – Handles fault currents up to 10kA at 415V AC
Industry-Compliant – Meets IEC 60947-2 standards
Space-Saving Design – Compact for power panels with limited space

Additional information

brands

Schneider Electric

Specifications

Main
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 63 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 10 kA Icu at 380/415 V AC 50/60 Hz conforming to EN/IEC 60947-2 20 kA Icu at 220/230 V AC 50/60 Hz conforming to EN/IEC 60947-2
Performance level T 10 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
Complementary
[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 10 kA at 380/415 V AC 50/60 Hz conforming to EN/IEC 60947-2 20 kA at 220/230 V AC 50/60 Hz conforming to EN/IEC 60947-2
Mechanical durability 30000 cycles
Electrical durability 8000 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 63 A at 40 °C
Long-time pick-up adjustment type Ir (thermal protection) Fixed
[Ir] long-time protection pick-up adjustment range 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)
Environment
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 documents

Main documents

Datasheet Download Datasheet
Product datasheet G12T3F63
Instruction sheet
Download
Catalog Download
Environmental disclosure
Download
CAD Files Download

Main documents

Datasheet Download Datasheet
Product datasheet G12T3F63
Instruction sheet
Download
Catalog Download
Environmental disclosure
Download
CAD Files Download

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