3P 400V 125A Circuit Breaker Tongou TOD10-125
Modelo: TOD10-125 3P 230V 125A- Sku: TONGPRO031
- Vendor: Tongou
Specifications
Product Description
The Magnetothermic 3P 400V 125A Tongou TOD10-125 is a three-phase load break switch (isolator) designed for safe switching and isolation of circuits at 400 V AC with currents up to 125 A. Its AC-22 utilization category ensures reliable switching of mixed loads (inductive and resistive), providing visible disconnection and galvanic isolation of the circuit during maintenance operations or as a main switch upstream of automatic protections.
Main Features
- Three-phase 3P with 125 A rated and 400 V AC at 50/60 Hz.
- Utilization category AC-22 for switching mixed loads.
- Short-time withstand: 1500 A for 1 s; electro-mechanical life 10,000 cycles.
- Reinforced screw terminals; accepts rigid conductors up to 35 mm².
- Modular mounting on 35 mm DIN rail; approximate width 54 mm (3 modules).
- Standards compliance: IEC/EN 60947-3 and GB 14048.3.
Advantages or Benefits
- Operational safety with visible disconnection and reliable circuit isolation.
- Prepared for high currents, with low voltage drop and robust terminals.
- Quick installation in existing panels thanks to its standard DIN format.
- Competitive cost and long service life, ideal for frequent switching operations.
- Versatile: main switch, subpanel or critical equipment isolation.
Purpose or Applications
Recommended for three-phase panels in commercial and light industrial settings: pumps and compressors, HVAC, machinery, IT/UPS racks, and photovoltaic systems where high-amperage 3P isolation with frequent and safe operation is required.
Technical Specifications
| Model | Tongou TOD10-125 |
| Poles | 3P |
| Rated current | 125 A |
| Rated voltage | 400 V AC |
| Frequency | 50/60 Hz |
| Utilization category | AC-22 |
| Short-circuit withstand | 1500 A / 1 s |
| Electro-mechanical life | 10,000 cycles |
| Connection capacity | Rigid conductor up to 35 mm² |
| Terminals | Screw / pillar with clamp |
| Mounting | 35 mm DIN rail |
| Approx. dimensions | W. 54 mm; H. 77–80 mm; D. 70–75 mm |
| Standards | IEC/EN 60947-3; GB 14048.3 |
Compatibilities
Installable in standard modular enclosures and panels (e.g., Kaedra-type ranges). Complementary to residual current devices and automatic circuit breakers downstream, as well as to professional connection terminals and ferrules.
The Magnetothermic 3P 400V 125A Tongou TOD10-125 combines safety, performance, and a compact format for 125 A three-phase isolation in professional panels.
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3P 400V 125A Circuit Breaker Tongou TOD10-125





