Schneider G12E3F16 | Circuit breaker, GoPact MCCB 125, 3 poles, 15kA at 415VAC, 16A rating, TMD trip unit, fixed thermal protection
Reliable short-circuit protection with 15kA breaking capacity ensures circuit safety and stability.
Fixed thermal-magnetic trip unit provides simple, dependable protection without adjustment needs.
Compact and lightweight design makes installation easier and saves space in electrical panels.
High-quality Schneider construction ensures long service life and consistent performance.
Complies with international standards, offering trusted safety for all low-voltage applications.
Description
Schneider G12E3F16 | Circuit breaker, GoPact MCCB 125, 3 poles, 15kA at 415VAC, 16A rating, TMD trip unit, fixed thermal protection

Description
The Schneider Electric G12E3F16 is a molded case circuit breaker (MCCB) from the GoPact 125 range, designed to provide reliable protection for low-voltage electrical distribution systems. It features a three-pole configuration and a rated current of 16A, ensuring protection for small to medium electrical circuits. The breaker includes a fixed thermal-magnetic (TMD) trip unit, which offers overload and short-circuit protection. With a breaking capacity of 15kA at 415VAC, it guarantees dependable performance in demanding commercial or industrial environments. The unit is fixed-mounted, compact in size, and built for long-term operation with high mechanical endurance.
Technical Specifications and Features
Product range: GoPact MCCB 125 series
Type: Molded Case Circuit Breaker (MCCB)
Number of poles: 3 poles
Rated current (In): 16 amperes
Rated operational voltage (Ue): 415 volts AC, 50/60 hertz
Breaking capacity (Icu): 15 kiloamperes at 415 volts AC
Trip unit type: Thermal-Magnetic (TMD)
Thermal protection: Fixed thermal setting at 1 × In (non-adjustable)
Magnetic protection: Fixed instantaneous setting to protect against short circuits
Utilization category: Category A (standard breaking without delay)
Mounting type: Fixed installation (non-withdrawable)
Dimensions (approximate): Width 75 mm, Height 130 mm, Depth 60 mm
Weight: Around 0.7 kilograms
Standards: Complies with IEC/EN 60947-1 and IEC/EN 60947-2
Operating temperature: Suitable for standard ambient conditions up to 40°C
Material and build: High-quality insulated molded housing with robust internal contacts for durability
Applications
Used in commercial, industrial, and residential electrical panels to protect circuits against overloads and short circuits.
Ideal for three-phase distribution boards in lighting, HVAC, or machinery control systems.
Commonly installed in sub-distribution boards, feeders, and small motor control centers.
Suitable for fixed installations where adjustable protection is not required.
Excellent for cost-sensitive projects that still require reliable and certified circuit protection.
Additional information
| brand | Schneider Electric |
|---|
Specifications
| 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 | 16 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 | 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 | 16 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 | 320 A |
| 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 |
| 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 |
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