Shop Legrand DX3 MCB 4 Pole 40A D-Curve 10kA Circuit Breaker | 409537 In Iraq Best Prices
Legrand DX3 4-pole miniature circuit breaker with 40A rated current, D-curve release characteristic, and 10kA breaking capacity. Provides reliable protection for three-phase installations with comprehensive safety features and flexible connection options.
The Legrand DX3 MCB (Miniature Circuit Breaker) is a thermal magnetic circuit-breaker designed to protect wiring installations against overloads and short-circuits. With a rated current of 40A and D-curve release characteristic, this 4-pole breaker provides comprehensive protection for three-phase installations with neutral. It features a 10kA breaking capacity at 400V and is compliant with IEC 60898-1 standard for household installations. The device can be supplied by copper cable, prong busbar, fork busbar, or Legrand HX3 plug busbar, offering flexible installation options. The breaker is equipped with DIN rail clamps for easy independent removal and includes a label holder for clear circuit identification. With IP20 protection rating (fingerproof against solid bodies larger than 12.5mm), it meets stringent safety requirements and environmental standards including halogen-free construction.
This MCB is part of the DX3 range and can be equipped with Legrand DX3 auxiliaries, RCD add-on modules, and various accessories to enhance functionality. The device offers both control and isolation capabilities for the installation, making it ideal for residential and small commercial applications. The tripping threshold in case of short-circuit ranges between 400A and 560A (D curve between 10 In and 14 In), providing reliable protection. Built-in depth of 44mm and modular design allows seamless integration into standard electrical panels. The breaker operates at frequencies of 50-60 Hz and maintains performance across ambient temperatures from -25°C to 70°C.
The product demonstrates Legrand's commitment to quality and environmental responsibility, with a carbon footprint of 3.470 kg CO₂eq during the manufacturing phase. Connection type is screwed terminal with connectable conductor cross-sections ranging from 1.5-25mm² (multi-wired) to 1.5-35mm² (solid-core). The grey colored housing (RAL 7035) provides a professional appearance in any electrical installation, while the impact strength rating of IK02 ensures durability in typical installation environments.
Key Features
- 4-pole configuration providing complete three-phase protection with neutral conductor
- 40A rated current with D-curve release characteristic for reliable short-circuit protection
- 10kA breaking capacity at 400V according to IEC 60898-1 standard
- Flexible connection options: copper cable, prong busbar, fork busbar, or Legrand HX3 plug busbar
- IP20 protection rating - fingerproof against solid bodies larger than 12.5mm
- DIN rail mounted with independent removal capability using dual clamps
- Compatible with Legrand DX3 auxiliaries and RCD add-on modules
- Built-in label holder for clear circuit identification
- Halogen-free construction demonstrating environmental responsibility
- Operates at 50-60 Hz with ambient temperature range of -25°C to 70°C
Technical Specifications
| Specification |
Value |
| Product Type | Miniature Circuit Breaker (MCB) |
| Manufacturer | Legrand |
| Series | DX3 |
| Reference Number | 409537 |
| EAN Code | 3414970434692 |
| Number of Poles | 4 poles (3P+N) |
| Rated Current | 40 Amperes |
| Release Characteristic | D-Curve (10-14 In for short-circuit) |
| Rated Voltage | 400V AC |
| Rated Insulation Voltage | 500V |
| Rated Impulse Withstand Voltage | 4 kV |
| Breaking Capacity at 230V | 16 kA (Icn) / 32 kA (Icu) |
| Breaking Capacity at 400V | 10 kA (Icn) / 16 kA (Icu) |
| Frequency | 50-60 Hz |
| Protection Degree | IP20 (Fingerproof) |
| Impact Strength Rating | IK02 |
| Built-in Depth | 44 mm |
| Width | 70.8 mm |
| Height | 94.8 mm |
| Overall Depth | 77.8 mm |
| Modular Width | 4 modular spacings |
| Connection Type | Screwed Terminal |
| Connectable Conductor - Multi-wired | 1.5-25 mm² |
| Connectable Conductor - Solid-core | 1.5-35 mm² |
| Supply Direction | Top or Bottom |
| Mounting Method | DIN Rail |
| Colour | Grey |
| RAL Number | 7035 |
| Ambient Temperature Range | -25°C to +70°C |
| Storage Temperature Range | -40°C to +70°C |
| Pollution Degree | 2 |
| Halogen Free | Yes |
| Flush-mounted Installation | Yes |
| Concurrent Switching of Neutral | Yes |
| Additional Equipment Possible | Yes |
| Explosion-proof | No |
| Carbon Footprint (Manufacturing) | 3.470 kg CO₂eq |
| Compliance Standards | IEC 60898-1, IEC 60947-2, IEC/EN 60529 |
| Label Space | Yes |
Order Legrand DX3 MCB 4 Pole 40A D-Curve 10kA Circuit Breaker | 409537 at wholesale prices for companies and factories in Iraq and Middle East, get the best deals on bulk purchases, contact us today.
