Legrand DX3 4-pole 32A C-curve modular circuit breaker with 50kA breaking capacity, IP20 finger-safe terminals, and DIN-rail mounting for reliable electrical circuit protection and control.
The Legrand DX3 4 Pole 32A Curve C Circuit Breaker (Model 410177) is a high-performance modular thermal-magnetic circuit breaker designed for control, protection, and isolation of electrical circuits. This professional-grade device delivers a robust 50kA breaking capacity at 400V AC and features a C-curve tripping characteristic with a rated current of 32A. The breaker operates with a tripping threshold between 160A and 320A for short-circuit protection, making it ideal for residential and small commercial electrical installations.
Built with IP20 finger-safe terminals, this circuit breaker ensures safe operation on DIN-rail mounting systems. The device measures 106.8mm in width, 127.5mm in height, and 79.2mm in depth, occupying 6 modular spacings on standard DIN rails. It features a red/green mechanical indicator displaying the open or closed status of contacts, along with a convenient label holder for circuit identification. The breaker is halogen-free and complies with environmental substance-restriction requirements.
The DX3 circuit breaker is compatible with Legrand DX3 auxiliaries, RCD add-on modules, and various accessories, offering flexibility for system expansion. It accepts both copper and aluminum cables (with appropriate terminal accessories) supplied from the top or bottom, with connectable conductor cross-sections ranging from 1.5mm² to 50mm² for solid-core wires and 1.5mm² to 35mm² for multi-wired conductors. Operating reliably across ambient temperatures from -25°C to 70°C, this breaker is engineered to meet IEC 60947-2 standards with a rated insulation voltage of 500V and impulse withstand voltage of 6kV.
Key Features
- 50kA breaking capacity at 400V AC with C-curve tripping characteristic
- 4-pole thermal-magnetic protection for comprehensive circuit control
- IP20 finger-safe terminals compliant with IEC/EN 60529 standard
- Red/green mechanical indicator for clear open/closed status display
- Compatible with Legrand DX3 auxiliaries, RCD add-on modules and accessories
- DIN-rail mounting with 6 modular spacings for flexible installation
- Halogen-free design with environmental compliance certification
- Accepts copper and aluminum cables with top or bottom supply options
- Label holder for convenient circuit identification and organization
- Wide ambient temperature operating range from -25°C to 70°C
Technical Specifications
| Specification |
Value |
| Product Type | Modular Thermal-Magnetic Circuit Breaker |
| Rated Current | 32 Amperes |
| Number of Poles | 4 poles (4 protected poles) |
| Trip Characteristic | C-curve (160A-320A short-circuit threshold) |
| Breaking Capacity at 230V | 100 kA according to IEC 60947-2 |
| Breaking Capacity at 400V | 50 kA according to IEC 60947-2 |
| Rated Voltage | 400V AC |
| Rated Insulation Voltage | 500V |
| Impulse Withstand Voltage | 6 kV |
| Frequency Range | 50-60 Hz |
| Degree of Protection | IP20 (Finger-safe) |
| Impact Strength Rating | IK02 |
| Width | 106.8 mm |
| Height | 127.5 mm |
| Depth | 79.2 mm (Built-in depth: 47 mm) |
| Modular Spacings | 6 modular spacings |
| Mounting Method | DIN-rail mounting |
| Solid-Core Conductor Cross-Section | 1.5-50 mm² |
| Multi-Wired Conductor Cross-Section | 1.5-35 mm² |
| Connection Type | Screwed terminal with cable connection |
| Supply Direction | Top or bottom supply |
| Operating Temperature Range | -25°C to +70°C |
| Storage Temperature Range | -40°C to +70°C |
| Pollution Degree | 3 |
| Nominal Voltage Range | 360-440V |
| Neutral Conductor Switching | Concurrently switching neutral conductor |
| Additional Equipment | Yes - Compatible with DX3 auxiliaries and RCD add-on modules |
| Halogen Free | Yes |
| Color | Grey (RAL 7035) |
| Material | Thermoplastic housing with metal terminals |
| Label Space | Yes - Integrated label holder |
| Mechanical Indicator | Red/Green status display |
| Carbon Footprint (Manufacturing) | 6.908 kg CO₂ eq. |
| Reference Number | 410177 |
| EAN Code | 3245064101776 |
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