Three-pole thermal magnetic circuit breaker with 25A rated current, C-curve characteristic, 6kA/10kA breaking capacity, DIN rail mounting, and comprehensive protection against overloads and short-circuits.
The Legrand DX3 MCB 6000A is a three-pole thermal magnetic circuit breaker designed for comprehensive protection of wiring installations against overloads and short-circuits. With a rated current of 25A and C-curve characteristic at 400V~, this device offers a breaking capacity of 6kA/10kA with energy limitation class 3. The circuit breaker features DIN rail mounting for easy installation and removal, even when the prong busbar supplying the row remains in place thanks to its dual DIN rail clamps positioned on top and bottom sides.
This MCB is equipped with advanced safety features including IP20 protection against solid bodies larger than 12.5mm (fingerproof) according to IEC/EN 60529 standards. It can be supplied via copper cable, prong busbar (top or bottom side), fork busbar (bottom side), or Legrand HX3 plug busbar (top side). The device is compatible with Legrand DX3 auxiliaries, RCD add-on modules, and various accessories, making it highly versatile for different installation requirements.
The product is halogen-free and designed with environmental consciousness, complying with substance-restriction requirements. It features a label holder for clear circuit identification and On/Off indication printed on the handle with red and green backgrounds for easy status identification. With a rated insulation voltage of 500V and impulse withstand voltage of 4kV, this circuit breaker ensures reliable protection in both residential and small commercial applications.
Key Features
- Three-pole configuration with 25A rated current for three-phase installations
- C-curve release characteristic with tripping threshold between 125A and 250A for optimal protection
- 6kA/10kA breaking capacity with energy limitation class 3 per IEC 60898-1 standard
- DIN rail mounting with dual clamps allowing independent removal without disturbing busbar supply
- IP20 fingerproof protection against solid bodies larger than 12.5mm with label holder for circuit identification
Technical Specifications
| Specification |
Value |
| Product Type | Thermal Magnetic Circuit Breaker (MCB) |
| Number of Poles | 3 poles (3P) |
| Rated Current | 25 Amperes (A) |
| Release Characteristic | C-curve |
| Rated Voltage | 400V AC (3-phase) |
| Rated Insulation Voltage | 500V |
| Rated Impulse Withstand Voltage | 4 kV |
| Breaking Capacity (Icn) | 6 kA at 400V according to IEC 60898-1 |
| Breaking Capacity (Icu) | 10 kA at 400V according to IEC 60947-2 |
| Energy Limitation Class | Class 3 |
| Tripping Threshold (Short-circuit) | Between 125A and 250A (5-10 In) |
| Degree of Protection | IP20 (fingerproof) |
| Mounting Method | DIN rail mounting |
| Built-in Depth | 44 mm |
| Width (Modular Spacings) | 3 spacings (53.1 mm) |
| Height | 94.8 mm |
| Depth | 77.8 mm |
| Color | Grey (RAL 7035) |
| Connection Type | Screwed terminal |
| Connectable Conductor Cross-section (Multi-wired) | 1.5-25 mm² |
| Connectable Conductor Cross-section (Solid-core) | 1.5-35 mm² |
| Supply Options | Copper cable, prong busbar (top/bottom), fork busbar (bottom), or Legrand HX3 plug busbar (top) |
| Operating Temperature Range | -25°C to +70°C |
| Storage Temperature Range | -40°C to +70°C |
| Frequency | 50-60 Hz |
| Pollution Degree | 2 |
| Impact Strength Degree | IK02 |
| Halogen Free | Yes |
| Additional Equipment Compatible | Yes (DX3 auxiliaries, RCD add-on modules, accessories) |
| Flush-mounted Installation | Yes |
| Neutral Conductor Switching | No |
| Carbon Footprint (Manufacturing Phase) | 2.809 kg CO2 eq. |
| Reference Number | 407861 |
| EAN Code | 3245064078610 |
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