Premium 4-pole thermal-magnetic circuit breaker with 50A rating and 50kA breaking capacity. Features D-curve tripping, IP20 protection, DIN rail mounting, and full compatibility with Legrand DX3 accessories for comprehensive electrical circuit protection.
The Legrand DX³ four-pole modular thermal-magnetic circuit breaker is a premium electrical protection device designed for control, protection, and isolation of electrical circuits in residential and small commercial applications. This robust circuit breaker features a 50kA breaking capacity at 400V~ and D-curve tripping characteristics, making it ideal for circuits requiring moderate overload protection. The device incorporates fully visible breaking mechanism for easy status verification, with a convenient red/green mechanical indicator displaying the open or closed position of contacts. Built with advanced safety features including IP20 protection against solid bodies larger than 12.5mm and compliance with IEC 60947-2 standards, this circuit breaker ensures reliable performance in demanding electrical environments.
The DX³ circuit breaker is engineered with a modular design that allows seamless integration with Legrand DX3 auxiliaries, RCD add-on modules, and various accessories to create comprehensive electrical protection systems. Its thermal-magnetic tripping mechanism provides precise protection against short circuits with a tripping threshold between 500A and 700A (D curve between 10 In and 14 In), ensuring optimal circuit protection without nuisance trips. The device features a convenient label holder for clear circuit identification and can be supplied by copper cable from either the top or bottom side. With its compact 47mm built-in depth and DIN rail mounting capability, installation is straightforward and space-efficient.
Manufactured with environmental consciousness, this circuit breaker complies with substance-restriction requirements and features halogen-free materials. The product is rated for operation across a wide ambient temperature range (-25 to 70°C) and supports both single-core (1.5-50 mm²) and multi-wired (1.5-35 mm²) conductor connections. The 50A rated current at 400V nominal voltage makes this circuit breaker suitable for protecting medium to large electrical circuits in residential buildings, small commercial establishments, and industrial control panels. Its robust construction and compliance with international standards guarantee long-term reliability and safety in electrical installations.
Key Features
- 50kA breaking capacity at 400V with D-curve tripping (500A-700A threshold)
- Fully visible breaking mechanism with red/green status indicator for easy circuit verification
- IP20 protection against solid bodies larger than 12.5mm (fingerproof)
- Compatible with Legrand DX3 auxiliaries, RCD add-on modules and accessories
- Modular design with 6 modular spacings, DIN rail mounting for space-efficient installation
- Thermal-magnetic protection with precise short-circuit tripping characteristics
- Label holder for clear circuit identification and organization
- Halogen-free construction with environmentally conscious design
- Wide ambient temperature operating range (-25 to 70°C)
- Supports both copper and aluminum cable connections with appropriate accessories
Technical Specifications
| Specification |
Value |
| Product Type | Modular Thermal-Magnetic Circuit Breaker |
| Number of Poles | 4 (Four-pole with 4 protected poles) |
| Rated Current | 50 A |
| Rated Voltage | 400 V AC |
| Rated Insulation Voltage | 500 V |
| Rated Impulse Withstand Voltage | 6 kV |
| Breaking Capacity at 230V | 100 kA |
| Breaking Capacity at 400V | 50 kA |
| Tripping Curve | D-curve (500A-700A, between 10 In and 14 In) |
| Frequency Range | 50-60 Hz |
| Degree of Protection | IP20 (Fingerproof) |
| Impact Strength Rating | IK02 |
| Built-in Depth | 47 mm |
| Width | 106.8 mm |
| Height | 127.5 mm |
| Overall Depth | 79.2 mm |
| Modular Width | 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, top or bottom cable supply |
| Ambient Temperature Operating Range | -25 to 70°C |
| Storage Temperature Range | -40 to 70°C |
| Nominal Voltage Range | 360-440 V |
| Pollution Degree | 3 |
| Neutral Conductor Switching | Concurrently switching neutral conductor |
| Additional Equipment | Yes - Compatible with DX3 auxiliaries and RCD add-on modules |
| Color | Grey (RAL 7035) |
| Halogen Free | Yes |
| Flush-mounted Installation | Yes |
| Explosion-proof | No |
| Terminal Marking | Label space and information surface provided |
| Carbon Footprint (Manufacturing) | 6.991 kg CO2 eq. |
| Reference Number | 410231 |
| EAN Code | 3245064102315 |
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