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MCB DX3 10000A 3 Pole 40A Curve C | IP20 Rated | Energy Limitation Class 3 | by Legrand
MCB DX3 10000A 3 Pole 40A Curve C is designed for reliable protection of electrical circuits against overload and short circuits. Ideal for residential and small commercial electrical panels, this miniature circuit breaker features a breaking capacity of 10 kA and IP20 protection, ensuring safety and compliance with AS/NZS 60898 standards. Built for durability and ease of installation, it’s perfect for qualified electricians looking for dependable circuit protection.
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Technical Specifications
- Rated current: 40 A
- Number of poles: 3
- Rated voltage: 400 V AC
- Breaking capacity: 10 kA at 400 V (IEC 60898-1)
- Impulse withstand voltage: 4 kV
- Rated insulation voltage Ui: 500 V
- Rated short-circuit breaking capacity Icn: 16 kA at 230 V, 10 kA at 400 V
- Rated short-circuit breaking capacity Icu: 32 kA at 230 V, 16 kA at 400 V
- Frequency: 50-60 Hz
- Current limiting class: 3
- Degree of protection: IP20
- Pollution degree: 2
- Connection type: Screwed terminal
- Connectable conductor cross section: 1.5-25 mm² multi-wired, 1.5-35 mm² solid-core
- Mounting method: DIN rail
- Operating ambient temperature: -25 to 70 °C
- Storage temperature: -40 to 70 °C
- Colour: Grey (RAL 7035)
- Halogen free: Yes
- Degree of impact strength: IK02
- Dimensions (H x L x W): 95mm x 78mm x 53mm
- Weight: 0.3 kg
Key Features
- Breaking capacity of 10000A according to IEC 60898-1 standard
- Tripping threshold between 200A and 400A (C curve)
- IP20 protection against solid bodies larger than 12.5mm
- Energy limitation class 3 for let-through energy
- Compatible with Legrand DX3 auxiliaries, RCD add-on modules, and accessories
- Can be connected to aluminium cables with terminal accessory
- Equipped with label holder for clear circuit identification
- On/Off indication on handle with red and green backgrounds
- Fitted with two DIN rail clamps for easy installation and removal
Professional Installation Requirements
- Installation should be performed by a qualified electrician in compliance with local electrical installation rules to ensure safety and proper operation.
Applications
- Residential and small commercial electrical panels
- Protection of electrical circuits against overload and short circuits
- Suitable for household and light commercial installations
Standards & Compliance
- AS/NZS 60898 – Electrical accessories - Circuit-breakers for overcurrent protection for household and similar installations
Environmental Benefits
- Designed with an environmentally conscious process
- Halogen-free materials reduce environmental impact
- Energy limitation class 3 reduces let-through energy, enhancing safety and reducing damage
Warranty Information
Warranty terms as per Legrand standard policy; typically covers manufacturing defects for 1-2 years.
Available Now
The Legrand MCB DX3 10000A 3 Pole 40A Curve C Miniature Circuit Breaker is available for immediate purchase, ideal for residential and small commercial electrical panel protection.
