Legrand DX3 modular 2-pole 50A circuit breaker with C-curve tripping, 50kA breaking capacity, IP20 finger-safe terminals, and DIN-rail mounting for 230/400V AC applications.
The Legrand DX3 MCB 2 Pole 50A Curve C is a modular thermal-magnetic circuit breaker designed for reliable control, protection and isolation of electrical circuits in residential and small commercial applications. This device features a 50kA breaking capacity according to IEC 60947-2 standards and offers C-curve tripping characteristics with a tripping threshold between 250A and 500A (5-10 In). The breaker is equipped with IP20 finger-safe terminals, providing protection against solid bodies larger than 12.5mm, and is mounted on DIN-rail for easy installation and maintenance.
This circuit breaker is suitable for 230/400V AC applications with rated insulation voltage of 500V and impulse withstand voltage of 6kV. It can be supplied by copper cable from either the top or bottom side and is compatible with Legrand DX3 auxiliaries, RCD add-on modules and various accessories. The device features a red/green mechanical indicator displaying the open or closed status of contacts, along with a label holder for convenient circuit identification. With halogen-free construction and environmentally conscious design, this breaker complies with substance-restriction requirements and RoHS directives.
The DX3 2P 50A breaker operates reliably across ambient temperatures from -25°C to +70°C and supports connectable conductor cross-sections from 1.5mm² to 50mm² for solid-core wires and 1.5mm² to 35mm² for multi-wired conductors. Its compact design with 3 modular spacings (width 53.4mm, depth 79.2mm, height 127.5mm) and IK02 impact resistance makes it ideal for modern electrical installations requiring high performance and safety standards.
Key Features
- 50kA breaking capacity according to IEC 60947-2 standards with C-curve tripping characteristic
- IP20 finger-safe terminals protecting against solid bodies larger than 12.5mm
- Red/green mechanical indicator showing open/closed contact status with label holder for circuit identification
- Compatible with Legrand DX3 auxiliaries, RCD add-on modules and various accessories
- Halogen-free construction with environmentally conscious design and RoHS compliance
- DIN-rail mounting with 3 modular spacings for compact installation
- Operates reliably from -25°C to +70°C ambient temperature
- Supports copper cable supply from top or bottom with aluminum cable connector option
- Connectable conductor cross-sections from 1.5mm² to 50mm² for solid-core and 1.5mm² to 35mm² for multi-wired
Technical Specifications
| Specification |
Value |
| Product Type | Modular Thermal-Magnetic Circuit Breaker |
| Poles | 2 poles (Bipolar) |
| Rated Current | 50 A |
| Rated Voltage | 400 V AC |
| Rated Insulation Voltage | 500 V |
| Impulse Withstand Voltage | 6 kV |
| Breaking Capacity (Icu) at 230V | 100 kA |
| Breaking Capacity (Icu) at 400V | 50 kA |
| Tripping Curve | C-curve (5-10 In) |
| Short-circuit Tripping Threshold | 250A to 500A |
| Protection Degree | IP20 (Finger-safe) |
| Impact Resistance | IK02 |
| Frequency Range | 50-60 Hz |
| Width (Modular Spacings) | 3 spacings |
| Width Dimension | 53.4 mm |
| Height Dimension | 127.5 mm |
| Depth Dimension | 79.2 mm |
| Built-in Depth | 47 mm |
| Mounting Method | DIN-rail |
| Connection Type | Screwed Terminal |
| Conductor Cross-section (Solid-core) | 1.5 to 50 mm² |
| Conductor Cross-section (Multi-wired) | 1.5 to 35 mm² |
| Supply Direction | Top or bottom |
| Ambient Temperature Operating Range | -25 to +70°C |
| Storage Temperature Range | -40 to +70°C |
| Nominal Voltage Range | 360-440 V |
| Pollution Degree | 3 |
| Color | Grey (RAL 7035) |
| Halogen-free | Yes |
| Flush-mounted Installation | Yes |
| Concurrently Switching Neutral | No |
| Additional Equipment Possible | Yes |
| Carbon Footprint (Manufacturing) | 3.549 kg CO₂ eq. |
| Reference Number | 410153 |
| EAN Code | 3245064101530 |
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