LEGRAND DX3 406880

Legrand Miniature Circuit Breaker 4A 1P DX3 406880

Description

This Legrand DX3 406880 is a high-quality single-pole miniature circuit breaker (MCB) designed for reliable protection of electrical circuits. It offers protection against both short circuits and overloads. With a 4A rated current and a C-type tripping characteristic, it is suitable for a wide range of general-purpose applications in residential, commercial, and industrial settings. This MCB is designed for easy mounting on a standard DIN rail.

Specifications

• Manufacturer: Legrand
• Part Number: 406880
• Series: DX3
• Number of Poles: 1
• Rated Current: 4 A
• Tripping Curve: C
• Rated Breaking Capacity: 6 kA according to IEC/EN 60898-1
• Rated Voltage: 230/400 V AC

Label Info

• Model Series: DX3
• Rating: C4 (4 Ampere, C-Curve)
• Breaking Capacity (Domestic): 4500A, Class 3
• Breaking Capacity (Industrial): 6kA

Application

Ideal for the protection of final circuits in installations, such as lighting circuits, socket outlets, and other loads with moderate inrush currents. Its robust design ensures long-term performance and safety.

Country of Origin

This product is proudly Made in France, ensuring high manufacturing standards.

CO2 Impact

By purchasing this reused component, you help avoid the emission of approximately 4.4 kg of CO2. This saving is comparable to the emissions from driving a standard car for 22 kilometers.

Availability

This item is in stock and ready for immediate dispatch. We offer various shipping options to meet your needs. Order now from spareparts2day for expert support and fast delivery.

FAQ

What is the significance of the ‘C’ curve on this C4 breaker?

The ‘C’ curve is a general-purpose tripping characteristic. It’s designed to trip between 5 and 10 times the rated current (In). This makes it suitable for most applications, including resistive and inductive loads like lighting, sockets, and small motors, providing a good balance between protection and avoiding nuisance tripping from inrush currents.

Can this 1P breaker be used in a DC circuit?

While primarily designed for AC systems (230/400V AC), some MCBs like the DX3 series have a DC rating. It is crucial to consult the official Legrand datasheet for the specific DC voltage and breaking capacity limitations for model 406880. Using it outside its specified DC rating can be unsafe.

What does the ‘4500’ with a ‘3’ in a box mean, next to the ‘6kA’ rating?

The ‘4500’ indicates a breaking capacity of 4500 Amperes according to the IEC 60898-1 standard, which is typically for domestic installations. The ‘3’ in the box signifies the energy limiting class, which is the highest class, meaning it disconnects a short-circuit very quickly to limit the let-through energy and protect the wiring. The ‘6kA’ rating refers to its breaking capacity under the IEC 60947-2 standard for industrial applications.

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Last Update: Friday, March 13, 2026