Legrand DX3 three-pole thermal-magnetic circuit breaker with 32A C-curve, 36kA breaking capacity, IP20 finger-safe terminals, and DIN-rail mounting for reliable electrical circuit protection.
The Legrand DX3 three-pole modular thermal-magnetic circuit breaker (SKU: 410024) is engineered for comprehensive control, protection, and isolation of electrical circuits in residential and small commercial applications. This device delivers exceptional performance with a 36kA breaking capacity at 400V and precise 32A C-curve protection, making it ideal for general purpose circuits requiring reliable overload and short-circuit protection. The circuit breaker features IP20 finger-safe terminals that comply with IEC/EN 60529 standards, ensuring safe DIN-rail mounting and preventing accidental contact with live parts.
Designed with advanced thermal-magnetic technology, the DX3 provides automatic tripping between 160A and 320A during short-circuit conditions (C curve between 5 In and 10 In), delivering dependable circuit protection. The device includes a red/green mechanical indicator that clearly displays the contact status (open or closed), and a convenient label holder for circuit identification. Built-in depth of 47mm with 4.5 modular spacings ensures efficient panel integration. The breaker is compatible with Legrand DX3 auxiliaries, RCD add-on modules, and various accessories, providing flexibility for system expansion.
This environmentally conscious product complies with all substance-restriction requirements and has been manufactured using halogen-free materials. Operating across 50-60 Hz frequency range and maintaining performance in ambient temperatures from -25°C to 70°C, the DX3 represents professional-grade electrical protection suitable for demanding installation environments. Installation should be performed by qualified electricians in accordance with local electrical codes and safety regulations.
Key Features
- 36kA breaking capacity at 400V with C-curve tripping characteristic (160A-320A)
- IP20 finger-safe terminals preventing accidental contact with live parts
- Red/green mechanical status indicator for clear open/closed position display
- Compatible with Legrand DX3 auxiliaries, RCD add-on modules and accessories
- Halogen-free, environmentally conscious design complying with substance restrictions
- DIN-rail mounting with 4.5 modular spacing for efficient panel integration
- Accepts copper or aluminum cables (with terminal accessory) from top or bottom
- Label holder for convenient circuit identification and clear marking
Technical Specifications
| Specification |
Value |
| Product Type | Three-pole modular thermal-magnetic circuit breaker |
| Rated Current | 32A |
| Rated Voltage | 400V AC |
| Breaking Capacity at 400V | 36kA according to IEC 60947-2 |
| Breaking Capacity at 230V | 72kA according to IEC 60947-2 |
| Trip Characteristic | C-curve (160A-320A short-circuit tripping, 5 In to 10 In) |
| Rated Insulation Voltage | 500V |
| Rated Impulse Withstand Voltage | 6kV |
| Number of Poles | 3 poles (3 protected poles) |
| Degree of Protection | IP20 (finger-safe) |
| Built-in Depth | 47mm |
| Width | 80.1mm (4.5 modular spacings) |
| Height | 127.5mm |
| Depth | 79.2mm |
| Impact Strength Rating | IK02 |
| Connectable Conductor Cross Section (Solid-core) | 1.5-50mm² |
| Connectable Conductor Cross Section (Multi-wired) | 1.5-35mm² |
| Operating Temperature Range | -25°C to +70°C |
| Storage Temperature Range | -40°C to +70°C |
| Frequency Range | 50-60Hz |
| Nominal Voltage Range | 360-440V |
| Pollution Degree | 3 |
| Connection Type | Screwed terminal, cable connection |
| Mounting Method | DIN-rail mounting |
| Supply Direction | Top or bottom |
| Color | Grey (RAL 7035) |
| Halogen-free | Yes |
| Label Space | Yes |
| Additional Equipment | Compatible with DX3 auxiliaries and RCD add-on modules |
| Reference Number | 410024 |
| EAN Code | 3245064100243 |
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