GoPact MCCB 125
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CIRCUIT BREAKER
GoPact MCCB 125 circuit breaker, 50 A at 40 °C
SKU G12F3F50Schneider Electric G12F3F50 is a circuit breaker in the GoPact MCCB 125 range. Key specifications include rated current: 50 A at 40 °C; poles: 3P; trip unit: TM-D.
50 A at 40 °CRated current
3PPoles
TM-DTrip unit
PRODUCT DATA
Technical specifications
Source: Schneider Electric product catalog.
Verified September 17, 2026.
| Product reference | G12F3F50 |
|---|---|
| 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 | 50 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 | 30 kA Icu at 380/415 V AC 50/60 Hz conforming to EN/IEC 60947-2 50 kA Icu at 220/230 V AC 50/60 Hz conforming to EN/IEC 60947-2 |
| Performance level | F 30 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 | 50 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) |
| 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 |
For complete electrical ratings, applicable standards, connection requirements and installation instructions, consult the official Schneider Electric reference ↗.